12 jobs found

Job Description Job Description About Radiant Radiant is an El Segundo, CA-based startup building the world's first mass-produced, portable nuclear microreactors. Rising energy demand is straining the U.S. grid and driving up utility costs, emissions, and interconnection backlogs. Radiant decentralizes energy, producing power close to where it's used. Its first reactor, Kaleidos, is a factory-built, 1-megawatt, fail-safe microreactor that can be transported by land, sea, or air and runs up to 5 years without refueling. Deployed locally without a decade-long build or permitting fight, Kaleidos provides independent power for critical infrastructure like military bases, data centers, hospitals, and remote sites. Founded in 2020, Radiant is under contract to deliver power to the U.S. Army, Air Force, Navy, and has pre-order agreements with Equinix, with deployments beginning in 2028. About the Role Radiant is seeking a Principal Turbomachinery Engineer to serve as the Responsible Engineer for the turbomachinery within our nuclear-driven power generation system. This role owns the mechanical design, integrity, and performance of the core rotating assembly at the heart of our 1MW closed-loop Brayton cycle. You will define and drive the mechanical architecture of high-speed rotating hardware operating at extreme temperatures, pressures, and rotational speeds. As a deeply technical individual contributor, you will set direction for rotor dynamics, structures, bearings, seals, and system integration while working closely with electrical, thermal, and manufacturing teams. This is a hands-on, high-ownership role focused on technical excellence, sound engineering judgment, and delivering reliable, production-ready turbomachinery. Responsibilities & Duties: Technical Ownership & System Architecture Serve as Responsible Engineer for the turbomachinery mechanical system. Own the mechanical architecture and design strategy for high-speed rotating assemblies (up to 30 krpm). Lead rotor dynamics, structural integrity, and life analysis for rotating components and assemblies. Define and flow down requirements from system-level constraints including thermal, structural, and operational environments. Make key technical decisions on rotor layout, shafting, bearings, seals, materials, and clearances. Ensure designs meet performance, reliability, safety, and regulatory requirements. Establish and uphold standards for mechanical design rigor, analysis quality, and documentation. Mechanical Design & Analysis Lead detailed design of turbomachinery components including rotors, shafts, housings, and support structures. Test and validate rotordynamic systems, driving model correlation, risk reduction, and performance verification. Perform and review structural and thermal analysis to ensure integrity under high-speed and high-temperature operation. Define tolerances, fits, stack-ups, and alignment strategies for precision rotating assemblies. Partner with electrical engineering on alternator rotor integration, including electromagnetic and structural coupling. Cross-Functional Integration Partner closely with turbomachinery aero, motor design, thermal, manufacturing, and test teams. Ensure seamless integration between turbine, compressor, and alternator subsystems. Drive clear interface definitions across mechanical, electrical, and thermal boundaries. Collaborate with manufacturing to ensure designs are producible, inspectable, and scalable. Engage with suppliers on technically critical components and design decisions. Prototyping, Testing & Validation Support assembly, integration, and test of turbomachinery hardware. Define validation strategies including spin testing, thermal testing, and system-level operation. Lead root cause analysis and drive design iteration for test failures or performance gaps. Remain hands-on in hardware bring-up, troubleshooting, and refinement. Technical Influence Act as a subject matter expert in turbomachinery mechanical design and rotating systems. Provide technical guidance and design reviews across the team without direct people management responsibility. Influence engineering direction through deep expertise, data-driven decisions, and strong judgment. Contribute to technical roadmap, risk identification, and mitigation strategies. Required Qualifications & Skills: B.S. in Mechanical Engineering or related field. 8+ years of experience designing high-speed rotating machinery (turbines, compressors, or similar systems). Deep expertise in structural analysis and mechanical design of turbomachinery. Experience with bearings, seals, and high-speed shafting design. Expert-level proficiency with analysis tools (e.g., ANSYS) and advanced use of NX and Teamcenter for complex design, simulation, and product lifecycle management. Strong understanding of tolerancing, GD&T, and precision mechanical assembly. Experience owning hardware through design, build, and test cycles. Hands-on experience with assembly, integration, and troubleshooting of turbomachinery. Strong system-level thinking and mechanical intuition. Excellent engineering judgment and decision-making capability. Ability to influence without authority across cross-functional teams. Clear communicator capable of articulating complex technical concepts. High ownership mindset and accountability for hardware outcomes. Ability to operate effectively in a fast-paced, first-of-a-kind development environment. Desired Qualifications & Skills: 10+ years of turbomachinery or rotating equipment experience. M.S. or Ph.D. in Mechanical Engineering. Experience with closed-loop Brayton cycle systems or similar energy systems. Familiarity with high-temperature materials and extreme environment design. Experience integrating mechanical systems with high-speed electric machines. Prior experience as a Responsible Engineer for complex hardware. Experience scaling hardware from prototype to production. Additional Requirements: Must be willing to work extended hours and weekends as necessary to accomplish our mission. Must work 100% onsite at El Segundo HQ. Benefits and Perks Stock: Substantial incentive stock plan for all full-time employees. Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans. One Medical: Sponsored memberships for employees and their dependents. Vision: 100% top tier plan coverage + 50% for dependents. Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents. Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits. 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees. Daily catered lunch. Free snacks and drinks. Flexible PTO policy. Remote workday allocation. Company and team-bonding events, happy hours and in-person camaraderie. Beautiful El Segundo headquarters close to the Pacific Ocean. Total Compensation and Benefits Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant's new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant. The best of today's advanced reactor builders don't wait for job postings. They join the winning team. If that's you, contact us directly for immediate opportunities: . We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant's capacity to serve in compliance with U.S. export controls. Compensation Range: $200,500 - $314,475

Job Description Job Description ABOUT ROCKET LAB Rocket Lab is the end-to-end space company building rockets, spacecraft, and critical subsystems that keep the world connected, protected, expand humanity's reach to the Moon, Mars, and beyond. We move fast, build real hardware for meaningful missions, and make the impossible routine. Come shape the future with us. SPACE SYSTEMS At Rocket Lab, we're not just launching rockets - we're building the future of space. Our Space Systems team builds everything from complete spacecraft, precision payloads to the components and subsystems that allow them to thrive in space, like solar panels, flight software, star trackers, optical systems, separation systems, radios, and more. Our Space Systems team has enabled more than 1,700 missions, ranging from interplanetary exploration, in-space manufacturing to national security and defense initiatives. The team has built spacecraft, payloads, and components for missions to the Moon and Mars, working with partners including NASA, the Space Development Agency, and the U.S. Space Force. Whether it's a single high-performance spacecraft, constellation, or the vertically integrated components that help them get to space - our world class Space Systems team is empowering some of the boldest and most ambitious space missions PRINCIPAL SPACECRAFT OPERATIONS ENGINEER II- SECRET CLEARANCE Based on site at Rocket Lab's headquarters in Long Beach, CA the PrincipalSpacecraft Operations Engineer is responsible for ensuring the health, safety, and optimal performance of a growing fleet of satellites while meeting mission objectives and SLAs for both commercial and government customers. This includes supporting diverse missions such as LEO constellations, interplanetary exploration, LEO rendezvous, and SDA-related deployments. Your expertise would be critical during commissioning, orbit raising, routine operations, and potentially re-entry phases, ensuring the health and safety of Rocket Lab's expanding fleet. The Spacecraft Operations team works closely with related teams, such as spacecraft design, AIT, flight software, propulsion, GNC, flight dynamics and ground software development to help improve both the ground and satellite-based capabilities over time. The space operations experience at Rocket Lab is unique because you will cover a multitude of roles/positions and responsibilities, with the large majority of the technical products being supplied through the vertical integration/in-house. WHAT YOU'LL GET TO DO: Serve as the program's mission operations technical lead: set the technical direction and strategy for operations, plan and prioritize the work of the mission operations staff, and act as the primary operations point of contact for program-level design decisions and trades Advocate for operability across the program: influence spacecraft and ground architecture upstream so vehicles are designed to be operated safely, efficiently, and autonomously, and push for changes to program design and execution when operational needs demand it Own mission operations requirements and lead requirements validation and verification for spacecraft missions and system-level capability and function Define the automation strategy and lead the development of robust, software-driven methods for mission operations, testing, and data analysis to ensure efficient, repeatable, and reliable spacecraft operation Design, develop, and test flight software sequences and FDIR/telemetry configurations to ensure spacecraft health and fault management through software-driven processes Architect, develop, and test ground software for long-duration operations, including scripting and automation frameworks that make operations robust, hands-off, and scalable across a growing fleet Establish and steward the integration, testing, and maintenance of mission operations tooling and codebases, including CI, version control, and release discipline. Ensure the on-call or shift schedules of operations Author and own interface specifications, CONOPS, contingency procedures, and other operational design documents Lead validation of flight products and procedures against spacecraft simulation tools, including flatsat, HITL, SIL, and digital twins Support AIT teams across multiple spacecraft integrated tests (TVAC, propulsion stack, DITL Provide program and product support to team leads and program managers, and serve as a key technical interface between the NZ and USA engineering teams Represent mission operations in program milestone reviews, design reviews, and readiness gates, and drive continuous improvement through post-mission lessons learned YOU'LL BRING THESE QUALIFICATIONS AS A PRINCIPALSPACECRAFT OPERATIONS ENGINEER: Bachelor's degree in engineering (software, computer, electrical, aerospace, mechanical, or other technical engineering discipline) 12+ years of direct experience in any of the following: space mission design, satellite subsystems, ground systems, spacecraft command control, or spacecraft operations 5+ years of experience leading teams of engineers through spacecraft missions or related aerospace projects Previous experience in roles such as Mission Lead, Mission Director, Flight Director, or Senior Spacecraft Operations Engineer Previous experience supporting mission operations activities in an on-console or operator-in-the-loop capacity Thorough understanding of key spacecraft subsystems and associated components, including attitude determination and control systems (ADCS), electrical power systems (EPS), space-to-ground communications, command and data handling (C&DH), thermal control systems (TCS), spacecraft propulsion systems, and fault detection, isolation, and recovery (FDIR) Understanding of the space environment, orbital mechanics, and rigid body dynamics 5+ years of direct software development experience (Python/Ruby/C/C++/other high-level languages), covering items such as spacecraft onboard flight scripts, ground scripting and automation, and data manipulation and analysis US citizenship is required due to program requirements Active U.S. Government Secret Security Clearance THESE QUALIFICATIONS WOULD BE NICE TO HAVE: Master's or PhD engineering in engineering (software, computer, electrical, aerospace, mechanical, or other technical engineering discipline) Prior experience in spacecraft operations Prior experience in satellite system design Prior experience in satellite ground systems Exposure to modern development practices - GIT, CI/CD, cloud infrastructure Proficiency with Agile issue-tracking tools, specifically Jira, for mission task management, status tracking, and bug reporting Software-in-the-Loop (SIL) Testing: Exposure to testing frameworks that simulate software behavior in operational environments. Hardware-in-the-Loop (HIL) Testing: Familiarity with testing frameworks that integrate software and hardware systems. Active TS/SCI U.S. Government Security Clearance This position may require prolonged periods of sitting, standing, walking, computer work, and occasional exposure to moderate levels of noise, dust, and fumes in production areas Anticipated annual equity grant value is designed around function, level, experience, and other factors; realized value depends on vesting and stock-price performance. Join one of the world's fastest-growing space companies and own a piece of it. In addition to competitive base pay, you'll receive company stock as part of your total compensation package, giving you a direct stake in our success. As we expand to new launch sites, groundbreaking missions, and global markets, your ownership has the opportunity to grow alongside the company. Our comprehensive benefits package includes our industry-leading Employee Stock Purchase Program (with a 15% discount on company stock), top-tier medical plans (HMO, PPO, and a zero cost HDHP option with a significant HSA company contribution), dental and vision coverage, paid vacation and sick time, 11 paid holidays, flexible spending and dependent care accounts, paid parental leave, disability and life insurance, and a 401(k) retirement plan with company match. Additional perks include subsidized EV charging, onsite fitness centers (where available), discounted gym memberships, complimentary snacks and beverages, 50% employee discount on our popular merch store, and a variety of other employee discounts. Level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, and experience. Total Compensation (base and equity) $223,025-$339,400 USD Base Salary $173,300-$259,850 USD WHAT TO EXPECT We're on a mission to unlock the potential of space to improve life on Earth, but that's not an easy task. It takes hard work, determination, relentless innovation, teamwork, grit, and an unwavering commitment to achieving what others often deem impossible. Our people out-think, out-work, and out-pace. We pride ourselves on having each other's backs, checking our egos at the door, and rolling up our sleeves on all tasks big and small. We thrive under pressure, work to tight deadlines, and our focus is always on how we can deliver, rather than dwelling on the challenges that stand in the way. Important information: . click apply for full job details

Job Description Job Description Scientific Systems Company Inc. (SSCI) is seeking an experienced Product Test & Evaluation Deputy Group Lead to build and lead a high-performance test organization for SSCI's autonomy software and integrated mission-system products. As our software is deployed across multiple OEM unmanned aircraft platforms, this role will own the verification evidence that proves our products are reliable, repeatable, and mission-ready at scale. You will own test strategy, test architecture, and test execution across the full product lifecycle (unit and integration through software-in-the-loop (SIL), hardware-in-the-loop (HIL), sensor integration, performance and regression campaigns, ground test, and flight test. You will also own the test infrastructure that makes this possible: simulation environments, test benches, automated test frameworks, CI/CD test pipelines, and multi-platform test labs. Secondarily, you will ensure test practices and verification records satisfy SSCI's ISO-aligned Quality Management System, partnering with the QA function on audits, corrective actions, and process governance. This Deputy Group leader establishes SSCI's long-term product test strategy and owns execution across the Solutions Division. As SSCI expands its licensed software model, this role is central to demonstrating that our products meet the highest operational and airworthiness-relevant standards. Essential Functions Test Leadership and Strategy Establish and execute SSCI's enterprise test strategy for autonomy and mission-system products, spanning software, system, and platform-integration levels. Build, mentor, and manage a multidisciplinary test organization (test engineering, test automation, build and release, field test and field service engineers). Define test coverage models, entry/exit criteria, and release qualification gates; own the go/no-go verification recommendation for product releases. Develop test metrics and dashboards - coverage, defect escape rate, automation yield, test cycle time, flight-test readiness - and drive continuous improvement against them. Must be able to obtain and maintain a United States DoD Security Clearance. Test Engineering and Execution Own planning and execution of comprehensive verification and validation campaigns: functional, regression, performance, stress and edge-case, HIL, sensor integration, ground test, and flight test. Translate system and customer requirements into verifiable test requirements, test procedures, and traceable verification evidence. Drive test automation and continuous testing into CI/CD pipelines to shorten feedback loops and scale coverage across platform variants. Own readiness, fidelity, and configuration control of simulation environments, test equipment, instrumentation, and multi-platform test infrastructure. Own test data management and analysis, including flight and bench data reduction, anomaly investigation, and root-cause support to engineering. Quality Assurance and Compliance (Secondary) Ensure test artifacts, verification records, and release documentation satisfy SSCI's ISO-aligned QMS requirements. Support QA-led audits, nonconformance handling, corrective and preventive actions, and management reviews as the test organization's representative. Ensure acceptance criteria and design verification requirements are documented and enforced in coordination with systems engineering and QA. Cross-Functional Collaboration Partner with engineering, program management, field operations, and OEM partners to align test scope, schedules, and acceptance expectations across diverse aircraft systems. Ensure field test results, customer-reported issues, and OEM integration findings feed back into test coverage, regression suites, and product improvement. Continuous Improvement Identify technical unknowns, test gaps, and operational risks, and prioritize test investment accordingly. Drive standardization, reuse, scalability, and automation across all test workflows and platform variants. Requirements Basic Qualifications Bachelor's degree and 7+ years of experience in test engineering, systems verification and validation, or integration and test of complex software/hardware systems. Experience leading and managing technical test or integration teams. Demonstrated experience building or scaling test programs and test automation for complex SW/HW systems such as autonomy, aerospace, robotics, or other mission-critical platforms. Hands-on experience with structured test methodologies, requirements-based verification, test planning, and multi-platform compatibility testing. Working familiarity with ISO 9001 processes and QMS-related verification documentation. Preferred Qualifications Experience testing flight-critical or aviation autonomy systems, including ground and flight test campaigns. Experience supporting government or defense programs. Depth in CI/CD, DevSecOps, test automation frameworks, simulation tools, and hardware-in-the-loop environments. Experience with test data analysis, instrumentation, and telemetry-based anomaly investigation. Active or prior DoD security clearance. Excellent communication and organizational leadership skills. Benefits Salary: $160,000 - $221,000 (Depends on Experience) Health Care Plan (Medical, Dental & Vision) Retirement Plan (401k, IRA) Life Insurance (Basic, Voluntary & AD&D) Paid Time Off (Vacation, Sick & Public Holidays) Family Leave (Maternity, Paternity) Short Term & Long Term Disability Training & Development Hybrid Work Schedule Free Food & Snacks Wellness Resources Summer 9/80 work schedule

Job Description Job Description Shield AI is a venture-backed defense-tech company with the mission of protecting service members and civilians with intelligent systems. Its products include Hivemind autonomy software, V-BAT and X-BAT aircraft, and Aechelon simulation and synthetic reality technologies. With offices and facilities across the U.S., Europe, the Middle East, and Asia-Pacific, Shield AI's technology actively supports operations worldwide. For more information, visit . Follow Shield AI on LinkedIn, X, Instagram, and YouTube. Job Description: The Special Projects team at Shield AI is an elite force within the office of the CTO. It consists of a group of very senior (L5-L8) and highly experienced software engineering experts from diverse fields (aerospace, robotics, cloud infrastructure, game development, interactive media design, ). The charter of this group is to steer technology development towards strategic alignment with the CTO's vision, through tactical insertion into teams and technologies across the organization. Individuals within this team make direct and at times forward-sprinting contributions to all three pillars of Hivemind, Shield AI's software ecosystem for developing and deploying resilient intelligent teaming for aircrafts. Hivemind consists of four products: EdgeOS (C++ based high-performance middleware for autonomy development), Pilot (autonomy for the edge built atop EdgeOS; a models-based, modular and open architecture C++ codebase), Forge (Shield AI's AI Factory for the design, development, and testing of Hivemind Edge systems; a service-oriented architecture leveraged through an SDK, CLI, and web portal; a Go, Python, Typescript codebase), Commander (Software and hardware to support rich human-in-the-loop and human-on-the-loop interactions with the Hivemind; a C++-based back-end for interaction with Pilot; and a web-application UI for mission planning, command and control by operators implemented in a Typescript/React codebase). The Special Projects team is chartered to operate effectively within ambiguity. While this team does not own any software products, it tactically and strategically impacts the development of all foundational Hivemind products and leverages those technologies to rapidly deliver low-TRL solutions. This work happens shoulder-to-shoulder with the product teams in some cases, and in a forward-sprinting manner within the Special Projects team in other cases. The result is direct contribution to products in the former case, and development of reference implementations in the latter. The Special Projects team also functions as a pipeline for product and solution engineering teams across the organization. Individuals who enter the Special Projects team rapidly gain depth and breadth in their understanding of the Hivemind software ecosystem. This positions them well for leading technology development effort across the product and solution organization. What you'll do: Design and build the user experience for agentic AI products across the office of the CTO: an enterprise knowledge assistant (Brain), an agent-driven engineering platform (Springboard), and enterprise AI/data applications. Prototype in code. Ship working React/TypeScript implementations, not mockups - then land them in production with the product teams. Design the core interaction patterns of agentic software: streaming responses, citations and provenance, multi-modal input, artifact sharing, and human-in-the-loop review and approval surfaces. Design interfaces for foundation-model based autonomy architectures and model lifecycle tooling: evaluation dashboards, trace inspection, observability, and verification surfaces. Conduct user research across engineers, operators, and executives; define personae and translate findings into design decisions. Investigate competing agentic and enterprise AI products; synthesize findings for engineering and product leadership. Establish reusable design patterns and a component vocabulary for AI applications across the organization. Drive adoption: instrument what you ship, watch real usage, and iterate daily. Required qualifications: 12+ years designing and building production software interfaces, with end-to-end ownership from research through shipped product. Expert-level React/TypeScript; you write production-quality front-end code, not just prototypes. Portfolio of shipped tools or applications demonstrating strong interaction design and visual craft. Hands-on experience designing LLM-powered experiences: streaming, progressive rendering, loading states, context and conversation management. Deep knowledge of client and UI state management, the DOM, browser APIs, WebSockets, and Server-Sent Events. Experience running user research and usability testing, and acting on the results. Strong software hygiene: Git, code review, testing, CI/CD. Fluid intelligence that allows one to operate effectively in ambiguous conditions while finding opportunities to drive technical efforts and force multiply. Experience with Linux, Docker, and a major cloud platform (Azure, GCP, AWS). This role requires travel to a Shield AI location 1-3 times per quarter Preferred qualifications: Experience designing developer tools, IDEs, or engineering workflow products. Data visualization experience (D3, WebGL, dashboards); geospatial a plus. Experience building or maintaining a design system. Experience designing debugging/inspection UIs for generative AI systems. Experience with Electron (or similar). Experience with user experience design for video games or interactive media. Experience designing for "low code" or "no code" systems. Comfort reading C++ and/or Python and/or Go. Senior staff: $190,000-$290,000 Principal: $230,000-$340,000 Full-time regular employee offer package: Pay within range listed + Bonus + Benefits + Equity Temporary employee offer package: Pay within range listed above + temporary benefits package (applicable after 60 days of employment) Salary compensation is influenced by a wide array of factors including but not limited to skill set, level of experience, licenses and certifications, and specific work location. All offers are contingent on a cleared background and possible reference check. Military fellows and part-time employees are not eligible for benefits. Please speak to your talent acquisition representative for more information. Shield AI is proud to be an equal opportunity workplace and is an affirmative action employer. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, marital status, disability, gender identity or Veteran status. If you have a disability or special need that requires accommodation, please let us know. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Job Description Job Description A New Paradigm For Space Operations. Who We Are: Space Kinetic is a dual use space technology startup building a completely new architecture for space operations - one that brings the advantages of proliferated drone technology (low-cost, operationally flexible, attainable, distributed) to space missions while reducing the ecosystem's reliance on consumable fuel. In a world where many companies are focused on incrementally improving the status quo, we are focused on creating something entirely different - an architecture underpinned by new first principles to meet the opportunities and challenges of the third space age head-on. Our goal is to move away from one-to-one space architectures - where each satellite in a constellation has one (or a small # of) primary payloads attached to the bus and unlock a 'one-to-many' system, where each satellite has a large number of payloads which can be deployed from their host spacecraft at high velocities without firing a thruster. This is not a role for someone looking for a traditional 40-hour work week. Space Kinetic is building ambitious, first-of-its-kind technology, and that requires urgency, ownership, and a high level of commitment to changing the foundational assumptions for everything we do in space. What You'll Do: The Principal Guidance, Navigation, and Control (GNC) Engineer will lead the development of an entirely new GNC architecture for Space Kinetic's first-of-its-kind spacecraft platform. You will own the GNC subsystem across its full lifecycle, from early concept development and algorithm design through simulation, hardware integration, verification, and mission operations. You will lead a cross-functional GNC team and collaborate with flight software, systems engineering, test, leadership, and external partners to deliver an integrated hardware and software solution. Job Responsibilities: Lead the GNC team and own the subsystem architecture, development schedule, requirements, interfaces, and technical milestones. Design and implement GNC algorithms for flight software and support their integration into the spacecraft platform. Lead GNC hardware trade studies, component selection, and the integration of internally and externally developed hardware and software. Conduct design analyses, Monte Carlo simulations, and hardware-in-the-loop testing to evaluate and validate system performance. Own subsystem verification and validation activities across simulation, testbed, and flight environments. Develop or contribute to ground tools used for mission and constellation management. Partner with subcontractors, internal teams, and senior leadership while supporting internal and external design reviews. What It Takes: Bachelor's degree in Aerospace Engineering, Mechanical Engineering, Electrical Engineering, or a related technical field. 7+ years of experience developing spacecraft GNC systems. Experience supporting spacecraft or satellite development and operations across the full project lifecycle. Experience developing GNC algorithms, conducting simulations, and performing hardware-in-the-loop testing. Ability to work cross-functionally across spacecraft subsystems and interface directly with commercial or government aerospace customers. Ability to obtain and maintain a U.S. Government security clearance. What We'd Love: Master's degree or PhD in Aerospace Engineering or a related field. Experience with flight software frameworks such as NASA cFS, F', or custom architectures. Familiarity with model-based systems engineering and interface control documentation. Where You'll Be: The position is onsite at our headquarters in El Segundo, CA. Domestic travel may be required (up to 20% of the year). What We Offer: Equity-Based Compensation 401(k) retirement plan with a 3.5% company match Highly Competitive PTO Paid company holidays + winter break Comprehensive medical, dental, and vision insurance Unique Performance-based bonus opportunities ITAR Requirements: To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. 1157, or (iv) Asylee under 8 U.S.C. 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about ITAR here Equal Employment Opportunity: Space Kinetic provides equal employment opportunities to all employees and applicants without regard to race, color, religion, age, sex, gender identity, sexual orientation, national origin, veteran status, disability or any other legally protected status. The annual base salary for this role is below. Pay Grades are determined by role, level, location, and alignment with market data. Individual pay will be determined on a case-by-case basis and may vary based on the following considerations: interviews and an assessment of several factors that are unique to each candidate, job-related skills, relevant education/experience, certifications, abilities of the candidate and internal equity. Pay Range $195,000-$250,000 USD

Job Description Job Description Shield AI is a venture-backed defense-tech company with the mission of protecting service members and civilians with intelligent systems. Its products include Hivemind autonomy software, V-BAT and X-BAT aircraft, and Aechelon simulation and synthetic reality technologies. With offices and facilities across the U.S., Europe, the Middle East, and Asia-Pacific, Shield AI's technology actively supports operations worldwide. For more information, visit . Follow Shield AI on LinkedIn, X, Instagram, and YouTube. Job Description: The Special Projects team at Shield AI is an elite force within the office of the CTO. It consists of a group of very senior (L5-L8) and highly experienced software engineering experts from diverse fields (aerospace, robotics, cloud infrastructure, game development, interactive media design, ). The charter of this group is to steer technology development towards strategic alignment with the CTO's vision, through tactical insertion into teams and technologies across the organization. Individuals within this team make direct and at times forward-sprinting contributions to all three pillars of Hivemind, Shield AI's software ecosystem for developing and deploying resilient intelligent teaming for aircrafts. Hivemind consists of four products: EdgeOS (C++ based high-performance middleware for autonomy development), Pilot (autonomy for the edge built atop EdgeOS; a models-based, modular and open architecture C++ codebase), Forge (Shield AI's AI Factory for the design, development, and testing of Hivemind Edge systems; a service-oriented architecture leveraged through an SDK, CLI, and web portal; a Go, Python, Typescript codebase), Commander (Software and hardware to support rich human-in-the-loop and human-on-the-loop interactions with the Hivemind; a C++-based back-end for interaction with Pilot; and a web-application UI for mission planning, command and control by operators implemented in a Typescript/React codebase). The Special Projects team is chartered to operate effectively within ambiguity. While this team does not own any software products, it tactically and strategically impacts the development of all foundational Hivemind products and leverages those technologies to rapidly deliver low-TRL solutions. This work happens shoulder-to-shoulder with the product teams in some cases, and in a forward-sprinting manner within the Special Projects team in other cases. The result is direct contribution to products in the former case, and development of reference implementations in the latter. The Special Projects team also functions as a pipeline for product and solution engineering teams across the organization. Individuals who enter the Special Projects team rapidly gain depth and breadth in their understanding of the Hivemind software ecosystem. This positions them well for leading technology development effort across the product and solution organization. What you'll do: Design and build the user experience for agentic AI products across the office of the CTO: an enterprise knowledge assistant (Brain), an agent-driven engineering platform (Springboard), and enterprise AI/data applications. Prototype in code. Ship working React/TypeScript implementations, not mockups - then land them in production with the product teams. Design the core interaction patterns of agentic software: streaming responses, citations and provenance, multi-modal input, artifact sharing, and human-in-the-loop review and approval surfaces. Design interfaces for foundation-model based autonomy architectures and model lifecycle tooling: evaluation dashboards, trace inspection, observability, and verification surfaces. Conduct user research across engineers, operators, and executives; define personae and translate findings into design decisions. Investigate competing agentic and enterprise AI products; synthesize findings for engineering and product leadership. Establish reusable design patterns and a component vocabulary for AI applications across the organization. Drive adoption: instrument what you ship, watch real usage, and iterate daily. Required qualifications: 12+ years designing and building production software interfaces, with end-to-end ownership from research through shipped product. Expert-level React/TypeScript; you write production-quality front-end code, not just prototypes. Portfolio of shipped tools or applications demonstrating strong interaction design and visual craft. Hands-on experience designing LLM-powered experiences: streaming, progressive rendering, loading states, context and conversation management. Deep knowledge of client and UI state management, the DOM, browser APIs, WebSockets, and Server-Sent Events. Experience running user research and usability testing, and acting on the results. Strong software hygiene: Git, code review, testing, CI/CD. Fluid intelligence that allows one to operate effectively in ambiguous conditions while finding opportunities to drive technical efforts and force multiply. Experience with Linux, Docker, and a major cloud platform (Azure, GCP, AWS). This role requires travel to a Shield AI location 1-3 times per quarter Preferred qualifications: Experience designing developer tools, IDEs, or engineering workflow products. Data visualization experience (D3, WebGL, dashboards); geospatial a plus. Experience building or maintaining a design system. Experience designing debugging/inspection UIs for generative AI systems. Experience with Electron (or similar). Experience with user experience design for video games or interactive media. Experience designing for "low code" or "no code" systems. Comfort reading C++ and/or Python and/or Go. Senior staff: $190,000-$290,000 Principal: $230,000-$340,000 Full-time regular employee offer package: Pay within range listed + Bonus + Benefits + Equity Temporary employee offer package: Pay within range listed above + temporary benefits package (applicable after 60 days of employment) Salary compensation is influenced by a wide array of factors including but not limited to skill set, level of experience, licenses and certifications, and specific work location. All offers are contingent on a cleared background and possible reference check. Military fellows and part-time employees are not eligible for benefits. Please speak to your talent acquisition representative for more information. Shield AI is proud to be an equal opportunity workplace and is an affirmative action employer. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, marital status, disability, gender identity or Veteran status. If you have a disability or special need that requires accommodation, please let us know. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Amazon Leo is Amazon's low Earth orbit satellite network. Our mission is to deliver fast, reliable internet connectivity to customers beyond the reach of existing networks. From individual households to schools, hospitals, businesses, and government agencies, Amazon Leo will serve people and organizations operating in locations without reliable connectivity. Our goal is to be Earth's most customer centric company, and we are just getting started. We need people who want to join an ambitious program that continues to push the state of the art in space-based systems design. We are looking for the next member of our team who are building critical components for Amazon Leo satellites. We are looking for an exceptional engineer who combines superb technical and analytical capabilities with a demonstrated ability to deliver hardware. Export Control Requirement: Due to applicable export control laws and regulations, candidates must be a U.S. citizen or national, U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum. Key job responsibilities • Own end-to-end delivery of satellite avionics subsystems, from architecture and requirements through production ramp, in partnership with peer engineers. • Lead system and subsystem architecture, translating mission requirements into manufacturable hardware designs. • Drive circuit design, analysis, and ECAD schematic capture to meet performance and reliability targets. • Lead hardware design reviews (architecture, schematic, PCB layout) and set the technical bar for design quality. • Develop and execute bring-up, verification, and qualification test strategies. • Lead debugging and root cause resolution across development, qualification, and production, working closely with design and test engineers. • Establish requirements, traceability, and verification frameworks for hardware subsystems. • Lead production readiness and ramp, including test strategy, yield improvement, and issue resolution. • Influence cross-functional teams (systems, firmware, manufacturing, test, suppliers) to deliver program milestones. • Act as a technical leader, raising engineering standards and developing other engineers. A day in the life As a Senior Aerospace Hardware Engineer, you will be part of the avionics hardware development team, designing and testing systems supporting satellite sensing and control (power delivery, propulsion, attitude control, and more). You will lead work across the full lifecycle, from component selection and schematic design through layout review, bring-up, validation, and system integration. You will help define requirements, drive high-quality hardware designs, and ensure robust execution from development into production. Working closely with peer engineers, you will lead critical technical efforts while partnering across systems, firmware, manufacturing, and integration teams to solve complex problems. You'll operate in a fast-paced, ambiguous environment, tackling challenges that have not been solved at scale and contributing to the development of engineering standards across the organization. Along the way, we guarantee that you will learn a lot, have fun, and make a positive impact on tens of millions of people! About the team Our team is responsible for delivering production hardware subsystems for attitude control, power delivery, and propulsion control subsystems on the satellite bus. We take ownership and work hard to deliver the highest quality solutions to support the long-term success of Amazon Leo. This team consists of a broad set of technical backgrounds, and we look forward to welcoming people that are excited to help us deliver broadband internet to underserved communities! BASIC QUALIFICATIONS - Experience in developing functional specifications, design verification plans and functional test procedures - 5+ years of experience developing hardware across the full product lifecycle (concept through production at scale) - Experience with PCB design and debug, including processors, FPGAs, power supplies, and sensors - Experience with complex board designs (e.g., high-speed interfaces, power electronics, or high-reliability systems) - Experience using ECAD tools for schematic capture and PCB layout - Experience driving hardware through bring-up, validation, and integration PREFERRED QUALIFICATIONS - Master's degree in electrical engineering, computer engineering, or equivalent - Experience working with interdisciplinary teams to execute product design from concept to production - Experience with the project management of technical projects - 7+ years of experience developing hardware across the full product lifecycle in aerospace, automotive, or similar high-reliability environments - Experience with satellite, avionics, or vehicle control systems - Experience with system integration into complex electromechanical assemblies or enclosures - Experience with radiation-tolerant design or qualification for harsh environments - Experience developing test systems or automation (e.g., Python, C/C++) - Experience with hardware-in-the-loop (HIL) or similar system-level test methodologies - Experience with low-level firmware development and hardware/software integration Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status. Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit for more information. If the country/region you're applying in isn't listed, please contact your Recruiting Partner. The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave. Learn more about our benefits at . USA, WA, Redmond - 159 300.00 USD annually

Job Description Job Description A New Paradigm For Space Operations. Who We Are: Space Kinetic is a dual use space technology startup building a completely new architecture for space operations - one that brings the advantages of proliferated drone technology (low-cost, operationally flexible, attainable, distributed) to space missions while reducing the ecosystem's reliance on consumable fuel. In a world where many companies are focused on incrementally improving the status quo, we are focused on creating something entirely different - an architecture underpinned by new first principles to meet the opportunities and challenges of the third space age head-on. Our goal is to move away from one-to-one space architectures - where each satellite in a constellation has one (or a small # of) primary payloads attached to the bus and unlock a 'one-to-many' system, where each satellite has a large number of payloads which can be deployed from their host spacecraft at high velocities without firing a thruster. This is not a role for someone looking for a traditional 40-hour work week. Space Kinetic is building ambitious, first-of-its-kind technology, and that requires urgency, ownership, and a high level of commitment to changing the foundational assumptions for everything we do in space. What You'll Do: The Principal Guidance, Navigation, and Control (GNC) Engineer will lead the development of an entirely new GNC architecture for Space Kinetic's first-of-its-kind spacecraft platform. You will own the GNC subsystem across its full lifecycle, from early concept development and algorithm design through simulation, hardware integration, verification, and mission operations. You will lead a cross-functional GNC team and collaborate with flight software, systems engineering, test, leadership, and external partners to deliver an integrated hardware and software solution. Job Responsibilities: Lead the GNC team and own the subsystem architecture, development schedule, requirements, interfaces, and technical milestones. Design and implement GNC algorithms for flight software and support their integration into the spacecraft platform. Lead GNC hardware trade studies, component selection, and the integration of internally and externally developed hardware and software. Conduct design analyses, Monte Carlo simulations, and hardware-in-the-loop testing to evaluate and validate system performance. Own subsystem verification and validation activities across simulation, testbed, and flight environments. Develop or contribute to ground tools used for mission and constellation management. Partner with subcontractors, internal teams, and senior leadership while supporting internal and external design reviews. What It Takes: Bachelor's degree in Aerospace Engineering, Mechanical Engineering, Electrical Engineering, or a related technical field. 7+ years of experience developing spacecraft GNC systems. Experience supporting spacecraft or satellite development and operations across the full project lifecycle. Experience developing GNC algorithms, conducting simulations, and performing hardware-in-the-loop testing. Ability to work cross-functionally across spacecraft subsystems and interface directly with commercial or government aerospace customers. Ability to obtain and maintain a U.S. Government security clearance. What We'd Love: Master's degree or PhD in Aerospace Engineering or a related field. Experience with flight software frameworks such as NASA cFS, F', or custom architectures. Familiarity with model-based systems engineering and interface control documentation. Where You'll Be: The position is onsite at our headquarters in El Segundo, CA. Domestic travel may be required (up to 20% of the year). What We Offer: Equity-Based Compensation 401(k) retirement plan with a 3.5% company match Highly Competitive PTO Paid company holidays + winter break Comprehensive medical, dental, and vision insurance Unique Performance-based bonus opportunities ITAR Requirements: To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. 1157, or (iv) Asylee under 8 U.S.C. 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about ITAR here Equal Employment Opportunity: Space Kinetic provides equal employment opportunities to all employees and applicants without regard to race, color, religion, age, sex, gender identity, sexual orientation, national origin, veteran status, disability or any other legally protected status. The annual base salary for this role is below. Pay Grades are determined by role, level, location, and alignment with market data. Individual pay will be determined on a case-by-case basis and may vary based on the following considerations: interviews and an assessment of several factors that are unique to each candidate, job-related skills, relevant education/experience, certifications, abilities of the candidate and internal equity. Pay Range $195,000-$250,000 USD

Job Description Job Description About Radiant Radiant is an El Segundo, CA-based startup building the world's first mass-produced, portable nuclear microreactors. The company's first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be transported anywhere power is needed and run for up to 5 years without refueling. Portable nuclear power with rapid-deploy capability can replace similar-sized diesel generators and provide critical asset support for hospitals, data centers, remote sites, and military bases. Radiant's unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor at the Idaho National Laboratory this summer, with initial customer deliveries beginning in 2028. About the Role Radiant is seeking a Principal Turbomachinery Engineer to serve as the Responsible Engineer for the turbomachinery within our nuclear-driven power generation system. This role owns the mechanical design, integrity, and performance of the core rotating assembly at the heart of our 1MW closed-loop Brayton cycle. You will define and drive the mechanical architecture of high-speed rotating hardware operating at extreme temperatures, pressures, and rotational speeds. As a deeply technical individual contributor, you will set direction for rotor dynamics, structures, bearings, seals, and system integration while working closely with electrical, thermal, and manufacturing teams. This is a hands-on, high-ownership role focused on technical excellence, sound engineering judgment, and delivering reliable, production-ready turbomachinery. Responsibilities & Duties: Technical Ownership & System Architecture Serve as Responsible Engineer for the turbomachinery mechanical system. Own the mechanical architecture and design strategy for high-speed rotating assemblies (up to 30 krpm). Lead rotor dynamics, structural integrity, and life analysis for rotating components and assemblies. Define and flow down requirements from system-level constraints including thermal, structural, and operational environments. Make key technical decisions on rotor layout, shafting, bearings, seals, materials, and clearances. Ensure designs meet performance, reliability, safety, and regulatory requirements. Establish and uphold standards for mechanical design rigor, analysis quality, and documentation. Mechanical Design & Analysis Lead detailed design of turbomachinery components including rotors, shafts, housings, and support structures. Test and validate rotordynamic systems, driving model correlation, risk reduction, and performance verification. Perform and review structural and thermal analysis to ensure integrity under high-speed and high-temperature operation. Define tolerances, fits, stack-ups, and alignment strategies for precision rotating assemblies. Partner with electrical engineering on alternator rotor integration, including electromagnetic and structural coupling. Cross-Functional Integration Partner closely with turbomachinery aero, motor design, thermal, manufacturing, and test teams. Ensure seamless integration between turbine, compressor, and alternator subsystems. Drive clear interface definitions across mechanical, electrical, and thermal boundaries. Collaborate with manufacturing to ensure designs are producible, inspectable, and scalable. Engage with suppliers on technically critical components and design decisions. Prototyping, Testing & Validation Support assembly, integration, and test of turbomachinery hardware. Define validation strategies including spin testing, thermal testing, and system-level operation. Lead root cause analysis and drive design iteration for test failures or performance gaps. Remain hands-on in hardware bring-up, troubleshooting, and refinement. Technical Influence Act as a subject matter expert in turbomachinery mechanical design and rotating systems. Provide technical guidance and design reviews across the team without direct people management responsibility. Influence engineering direction through deep expertise, data-driven decisions, and strong judgment. Contribute to technical roadmap, risk identification, and mitigation strategies. Required Qualifications & Skills: B.S. in Mechanical Engineering or related field. 8+ years of experience designing high-speed rotating machinery (turbines, compressors, or similar systems). Deep expertise in structural analysis and mechanical design of turbomachinery. Experience with bearings, seals, and high-speed shafting design. Expert-level proficiency with analysis tools (e.g., ANSYS) and advanced use of NX and Teamcenter for complex design, simulation, and product lifecycle management. Strong understanding of tolerancing, GD&T, and precision mechanical assembly. Experience owning hardware through design, build, and test cycles. Hands-on experience with assembly, integration, and troubleshooting of turbomachinery. Strong system-level thinking and mechanical intuition. Excellent engineering judgment and decision-making capability. Ability to influence without authority across cross-functional teams. Clear communicator capable of articulating complex technical concepts. High ownership mindset and accountability for hardware outcomes. Ability to operate effectively in a fast-paced, first-of-a-kind development environment. Desired Qualifications & Skills: 10+ years of turbomachinery or rotating equipment experience. M.S. or Ph.D. in Mechanical Engineering. Experience with closed-loop Brayton cycle systems or similar energy systems. Familiarity with high-temperature materials and extreme environment design. Experience integrating mechanical systems with high-speed electric machines. Prior experience as a Responsible Engineer for complex hardware. Experience scaling hardware from prototype to production. Additional Requirements: Must be willing to work extended hours and weekends as necessary to accomplish our mission. Must work 100% onsite at El Segundo HQ. Benefits and Perks Stock: Substantial incentive stock plan for all full-time employees. Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans. One Medical: Sponsored memberships for employees and their dependents. Vision: 100% top tier plan coverage + 50% for dependents. Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents. Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits. 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees. Daily catered lunch. Free snacks and drinks. Flexible PTO policy. Remote workday allocation. Company and team-bonding events, happy hours and in-person camaraderie. Beautiful El Segundo headquarters close to the Pacific Ocean. Total Compensation and Benefits Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant's new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant. The best of today's advanced reactor builders don't wait for job postings. They join the winning team. If that's you, contact us directly for immediate opportunities: . We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant's capacity to serve in compliance with U.S. export controls. Compensation Range: $200,500 - $314,475