Leidos is seeking a Network Architect to design and optimize secure, mission-critical network infrastructures for government and commercial clients. In this role, you will lead architecture for complex routing, switching, wireless, and security solutions, ensuring scalability, resilience, and compliance. You'll collaborate with cyber, cloud, and systems engineering teams to modernize legacy environments, integrate advanced technologies, and solve high-impact national security and health challenges in a mission-driven, highly collaborative culture. Responsibilities Design and document secure, scalable network architectures for enterprise and mission-critical environments Lead implementation and integration of routing, switching, wireless, and security solutions Evaluate and select network technologies, tools, and vendors to meet client and mission requirements Collaborate with cybersecurity, systems engineering, and cloud teams on end-to-end solutions Develop capacity plans, redundancy strategies, and disaster recovery architectures Perform network assessments, troubleshoot complex issues, and drive root-cause analysis Create and maintain architecture standards, diagrams, and technical documentation Support proposals, estimates, and technical presentations for government and commercial clients Required Skills Network architecture design Enterprise routing and switching (BGP, OSPF, EIGRP) Network security (firewalls, VPNs, IDS/IPS) Cisco networking technologies SD-WAN and software-defined networking Load balancing and high availability design Cloud networking (AWS/Azure/GCP) Network performance monitoring and troubleshooting Network automation and scripting Documentation and network diagramming
11/12/2026
Full time
Leidos is seeking a Network Architect to design and optimize secure, mission-critical network infrastructures for government and commercial clients. In this role, you will lead architecture for complex routing, switching, wireless, and security solutions, ensuring scalability, resilience, and compliance. You'll collaborate with cyber, cloud, and systems engineering teams to modernize legacy environments, integrate advanced technologies, and solve high-impact national security and health challenges in a mission-driven, highly collaborative culture. Responsibilities Design and document secure, scalable network architectures for enterprise and mission-critical environments Lead implementation and integration of routing, switching, wireless, and security solutions Evaluate and select network technologies, tools, and vendors to meet client and mission requirements Collaborate with cybersecurity, systems engineering, and cloud teams on end-to-end solutions Develop capacity plans, redundancy strategies, and disaster recovery architectures Perform network assessments, troubleshoot complex issues, and drive root-cause analysis Create and maintain architecture standards, diagrams, and technical documentation Support proposals, estimates, and technical presentations for government and commercial clients Required Skills Network architecture design Enterprise routing and switching (BGP, OSPF, EIGRP) Network security (firewalls, VPNs, IDS/IPS) Cisco networking technologies SD-WAN and software-defined networking Load balancing and high availability design Cloud networking (AWS/Azure/GCP) Network performance monitoring and troubleshooting Network automation and scripting Documentation and network diagramming
Leidos Defense Systems seeks a Senior Surety Systems Engineer to apply systems engineering and model-based engineering methods to complex defense weapon systems. The role includes translating DoD safety manuals into design requirements, supporting system integration and verification, assessing physical security design, and coordinating with DoD and DOE stakeholders on nuclear weapon safety. Responsibilities Translate Department of Defense safety manuals into requirements and allocate them to design teams. Provide systems engineering support for the design, integration, and testing of a next-generation weapon system. Support technical planning, verification, validation, cost, risk, and supportability analyses for integrated systems. Evaluate physical security designs against Department of Defense safety manuals. Coordinate with Department of Defense and Department of Energy stakeholders on safe nuclear weapon system design and operation. Apply model-based engineering tools to evaluate and analyze weapon system designs. Required Skills Systems engineering Requirements decomposition and allocation Systems architecture System integration Verification and validation Requirements and configuration management DOORSModel-based systems engineering Weapon system engineering Safety and physical security analysis
11/12/2026
Full time
Leidos Defense Systems seeks a Senior Surety Systems Engineer to apply systems engineering and model-based engineering methods to complex defense weapon systems. The role includes translating DoD safety manuals into design requirements, supporting system integration and verification, assessing physical security design, and coordinating with DoD and DOE stakeholders on nuclear weapon safety. Responsibilities Translate Department of Defense safety manuals into requirements and allocate them to design teams. Provide systems engineering support for the design, integration, and testing of a next-generation weapon system. Support technical planning, verification, validation, cost, risk, and supportability analyses for integrated systems. Evaluate physical security designs against Department of Defense safety manuals. Coordinate with Department of Defense and Department of Energy stakeholders on safe nuclear weapon system design and operation. Apply model-based engineering tools to evaluate and analyze weapon system designs. Required Skills Systems engineering Requirements decomposition and allocation Systems architecture System integration Verification and validation Requirements and configuration management DOORSModel-based systems engineering Weapon system engineering Safety and physical security analysis
Leidos Defense Systems seeks a Senior Surety Systems Engineer to apply systems engineering and model-based engineering methods to complex defense weapon systems. The role includes translating DoD safety manuals into design requirements, supporting system integration and verification, assessing physical security design, and coordinating with DoD and DOE stakeholders on nuclear weapon safety. Responsibilities Translate Department of Defense safety manuals into requirements and allocate them to design teams. Provide systems engineering support for the design, integration, and testing of a next-generation weapon system. Support technical planning, verification, validation, cost, risk, and supportability analyses for integrated systems. Evaluate physical security designs against Department of Defense safety manuals. Coordinate with Department of Defense and Department of Energy stakeholders on safe nuclear weapon system design and operation. Apply model-based engineering tools to evaluate and analyze weapon system designs. Required Skills Systems engineering Requirements decomposition and allocation Systems architecture System integration Verification and validation Requirements and configuration management DOORSModel-based systems engineering Weapon system engineering Safety and physical security analysis
11/12/2026
Full time
Leidos Defense Systems seeks a Senior Surety Systems Engineer to apply systems engineering and model-based engineering methods to complex defense weapon systems. The role includes translating DoD safety manuals into design requirements, supporting system integration and verification, assessing physical security design, and coordinating with DoD and DOE stakeholders on nuclear weapon safety. Responsibilities Translate Department of Defense safety manuals into requirements and allocate them to design teams. Provide systems engineering support for the design, integration, and testing of a next-generation weapon system. Support technical planning, verification, validation, cost, risk, and supportability analyses for integrated systems. Evaluate physical security designs against Department of Defense safety manuals. Coordinate with Department of Defense and Department of Energy stakeholders on safe nuclear weapon system design and operation. Apply model-based engineering tools to evaluate and analyze weapon system designs. Required Skills Systems engineering Requirements decomposition and allocation Systems architecture System integration Verification and validation Requirements and configuration management DOORSModel-based systems engineering Weapon system engineering Safety and physical security analysis
Leidos is seeking a Software Architect to define software architecture and technical standards for complex sensor and radar systems. You will translate customer requirements into secure, scalable designs, guide integration and deployment, evaluate technologies, manage technical risks, and mentor engineering teams. The role includes RF sensor integration and CONUS field testing. Responsibilities Define and maintain software architecture, technical roadmaps, and design standards. Analyze customer requirements and develop effective software architectures and technical solutions. Document system architectures, software designs, interfaces, data flows, and deployment approaches. Lead design reviews and guide implementation, integration, and technology selection. Identify architectural risks and ensure security, resiliency, performance, and testability are addressed. Integrate and field-test RF sensor systems, support deployments, and mentor software engineers. Required Skills Software architecture design Requirements analysis System architecture documentation Interface and API design Data modeling and data flows Software integration Technology and framework evaluation Cybersecurity architecture Risk analysis and mitigation Code and design review
11/12/2026
Full time
Leidos is seeking a Software Architect to define software architecture and technical standards for complex sensor and radar systems. You will translate customer requirements into secure, scalable designs, guide integration and deployment, evaluate technologies, manage technical risks, and mentor engineering teams. The role includes RF sensor integration and CONUS field testing. Responsibilities Define and maintain software architecture, technical roadmaps, and design standards. Analyze customer requirements and develop effective software architectures and technical solutions. Document system architectures, software designs, interfaces, data flows, and deployment approaches. Lead design reviews and guide implementation, integration, and technology selection. Identify architectural risks and ensure security, resiliency, performance, and testability are addressed. Integrate and field-test RF sensor systems, support deployments, and mentor software engineers. Required Skills Software architecture design Requirements analysis System architecture documentation Interface and API design Data modeling and data flows Software integration Technology and framework evaluation Cybersecurity architecture Risk analysis and mitigation Code and design review
Leads a team supporting personal wireless communications across Air Force National Capital Region sites. Oversees wireless device lifecycle management, provisioning, Tier-1 support for classified mobility devices, asset management, maintenance, troubleshooting, and spectrum compliance, coordinating with DISA and Air Force stakeholders. Responsibilities Supervise technicians, assign daily work, and ensure service-level-compliant delivery. Lead Tier-1 troubleshooting and user support for Do D Mobility Classified Capability devices. Manage device requisitions, kitting, subscription changes, provisioning, and lifecycle orders through DISA systems. Oversee lifecycle management of wireless equipment, cellular endpoints, paging systems, and related assets. Direct or perform device programming, firmware updates, encryption configuration, and profile management. Coordinate spectrum compliance, maintenance, connectivity testing, and escalations with DISA and Air Force stakeholders. Required Skills Wireless communications equipment lifecycle management Do D Mobility Classified Capability device support Tier-1 troubleshooting DISA Storefront ordering portal DISA Do D Mobility Service Portal Device provisioning Firmware updates Encryption configuration Wireless connectivity testing RF alignment
11/12/2026
Full time
Leads a team supporting personal wireless communications across Air Force National Capital Region sites. Oversees wireless device lifecycle management, provisioning, Tier-1 support for classified mobility devices, asset management, maintenance, troubleshooting, and spectrum compliance, coordinating with DISA and Air Force stakeholders. Responsibilities Supervise technicians, assign daily work, and ensure service-level-compliant delivery. Lead Tier-1 troubleshooting and user support for Do D Mobility Classified Capability devices. Manage device requisitions, kitting, subscription changes, provisioning, and lifecycle orders through DISA systems. Oversee lifecycle management of wireless equipment, cellular endpoints, paging systems, and related assets. Direct or perform device programming, firmware updates, encryption configuration, and profile management. Coordinate spectrum compliance, maintenance, connectivity testing, and escalations with DISA and Air Force stakeholders. Required Skills Wireless communications equipment lifecycle management Do D Mobility Classified Capability device support Tier-1 troubleshooting DISA Storefront ordering portal DISA Do D Mobility Service Portal Device provisioning Firmware updates Encryption configuration Wireless connectivity testing RF alignment
Leidos seeks a Security Architect to design and guide secure solutions for mission-critical government and commercial clients. In this role, you will define cloud, on-prem, and hybrid security architectures; lead threat modeling and risk assessments; and ensure alignment with NIST and related standards. Partnering closely with engineering and IT, you'll embed Zero Trust principles, IAM, and network protections into scalable designs. Leidos offers impactful work, a collaborative, mission-driven culture, flexible work options, and comprehensive benefits supporting your growth and well-being. Responsibilities Design and document end-to-end security architectures for cloud, on-prem, and hybrid environments. Lead threat modeling, risk assessments, and security design reviews for mission-critical systems. Align solutions with NIST, ISO, and government security standards and client requirements. Collaborate with engineering, IT, and project teams to embed security into system designs and roadmaps. Select and integrate security tools and controls, including IAM, network, and endpoint protections. Develop security patterns, reference architectures, and technical guidance for delivery teams. Support proposals, architecture reviews, and customer briefings as a security subject matter expert. Monitor emerging threats and technologies to continuously improve security architectures. Required Skills Cloud security architecture Network security design Zero Trust frameworks Identity and access management (IAM) Secure systems engineering Security risk assessment Threat modeling Security compliance (NIST, ISO 27001) Security automation and tooling Technical documentation
11/12/2026
Full time
Leidos seeks a Security Architect to design and guide secure solutions for mission-critical government and commercial clients. In this role, you will define cloud, on-prem, and hybrid security architectures; lead threat modeling and risk assessments; and ensure alignment with NIST and related standards. Partnering closely with engineering and IT, you'll embed Zero Trust principles, IAM, and network protections into scalable designs. Leidos offers impactful work, a collaborative, mission-driven culture, flexible work options, and comprehensive benefits supporting your growth and well-being. Responsibilities Design and document end-to-end security architectures for cloud, on-prem, and hybrid environments. Lead threat modeling, risk assessments, and security design reviews for mission-critical systems. Align solutions with NIST, ISO, and government security standards and client requirements. Collaborate with engineering, IT, and project teams to embed security into system designs and roadmaps. Select and integrate security tools and controls, including IAM, network, and endpoint protections. Develop security patterns, reference architectures, and technical guidance for delivery teams. Support proposals, architecture reviews, and customer briefings as a security subject matter expert. Monitor emerging threats and technologies to continuously improve security architectures. Required Skills Cloud security architecture Network security design Zero Trust frameworks Identity and access management (IAM) Secure systems engineering Security risk assessment Threat modeling Security compliance (NIST, ISO 27001) Security automation and tooling Technical documentation
Leads a team delivering desktop and walk-up technical support for Department of the Air Force personnel at the Pentagon. Oversees Tier II incident management, customer installations and relocations, workstation troubleshooting, asset tracking, and service-level performance in a mission-critical environment. Responsibilities Lead, mentor, and schedule Tier I and Tier II desktop support staff and walk-up helpdesk specialists. Prioritize incident, service request, and work order queues in BMC Remedy and Service Now while meeting SLAs and SLOs. Serve as the escalation point for complex technical issues, VIP requests, and critical outages, coordinating with engineering, administration, and vendor teams. Oversee installations, office relocations, hardware moves and changes, lifecycle refreshes, and event support. Manage walk-up technical support, hardware troubleshooting and exchanges, component replacement, and asset tracking. Monitor productivity, resolution rates, turnaround cycles, and backlog; report status and maintain SOPs and troubleshooting documentation. Required Skills Desktop support Tier II incident management Hardware troubleshooting Software troubleshooting Workstation imaging Active Directory Layer 1 connectivity Layer 2 connectivity BMC Remedy Service Now
11/12/2026
Full time
Leads a team delivering desktop and walk-up technical support for Department of the Air Force personnel at the Pentagon. Oversees Tier II incident management, customer installations and relocations, workstation troubleshooting, asset tracking, and service-level performance in a mission-critical environment. Responsibilities Lead, mentor, and schedule Tier I and Tier II desktop support staff and walk-up helpdesk specialists. Prioritize incident, service request, and work order queues in BMC Remedy and Service Now while meeting SLAs and SLOs. Serve as the escalation point for complex technical issues, VIP requests, and critical outages, coordinating with engineering, administration, and vendor teams. Oversee installations, office relocations, hardware moves and changes, lifecycle refreshes, and event support. Manage walk-up technical support, hardware troubleshooting and exchanges, component replacement, and asset tracking. Monitor productivity, resolution rates, turnaround cycles, and backlog; report status and maintain SOPs and troubleshooting documentation. Required Skills Desktop support Tier II incident management Hardware troubleshooting Software troubleshooting Workstation imaging Active Directory Layer 1 connectivity Layer 2 connectivity BMC Remedy Service Now
Leidos is seeking a System Administrator to support mission-critical IT environments for government and commercial clients. In this role, you will administer and secure Windows and Linux servers, manage Active Directory, and support virtualization, storage, and networked systems. You'll implement patching, backup, and disaster recovery, monitor performance, and resolve incidents to maintain high availability. Working in a collaborative, mission-driven culture, you'll contribute to secure, reliable solutions while benefiting from professional growth, flexible work options, and robust benefits. Responsibilities Administer, monitor, and optimize Windows and Linux servers in enterprise environments. Manage Active Directory, Group Policy, user provisioning, and access controls. Implement and maintain system security, patching, and compliance standards. Configure and troubleshoot networks, virtualization platforms, and storage systems. Manage backup, recovery, and disaster recovery procedures. Monitor system performance and resolve incidents to ensure high availability. Automate routine tasks using scripts and standard tools. Document configurations, procedures, and changes following Leidos standards. Collaborate with security, network, and engineering teams on projects and upgrades. Support on-call rotation for critical systems as needed. Required Skills Windows and Linux server administration Active Directory and Group Policy management Virtualization (VMware/Hyper-V) Network configuration and troubleshooting System monitoring and performance tuning Backup and disaster recovery management Shell/Power Shell scripting Security hardening and patch management Cloud platforms (AWS/Azure) Configuration management and documentation
11/11/2026
Full time
Leidos is seeking a System Administrator to support mission-critical IT environments for government and commercial clients. In this role, you will administer and secure Windows and Linux servers, manage Active Directory, and support virtualization, storage, and networked systems. You'll implement patching, backup, and disaster recovery, monitor performance, and resolve incidents to maintain high availability. Working in a collaborative, mission-driven culture, you'll contribute to secure, reliable solutions while benefiting from professional growth, flexible work options, and robust benefits. Responsibilities Administer, monitor, and optimize Windows and Linux servers in enterprise environments. Manage Active Directory, Group Policy, user provisioning, and access controls. Implement and maintain system security, patching, and compliance standards. Configure and troubleshoot networks, virtualization platforms, and storage systems. Manage backup, recovery, and disaster recovery procedures. Monitor system performance and resolve incidents to ensure high availability. Automate routine tasks using scripts and standard tools. Document configurations, procedures, and changes following Leidos standards. Collaborate with security, network, and engineering teams on projects and upgrades. Support on-call rotation for critical systems as needed. Required Skills Windows and Linux server administration Active Directory and Group Policy management Virtualization (VMware/Hyper-V) Network configuration and troubleshooting System monitoring and performance tuning Backup and disaster recovery management Shell/Power Shell scripting Security hardening and patch management Cloud platforms (AWS/Azure) Configuration management and documentation
Leidos is seeking a System Administrator to support mission-critical IT environments for government and commercial clients. In this role, you will administer and secure Windows and Linux servers, manage Active Directory, and support virtualization, storage, and networked systems. You'll implement patching, backup, and disaster recovery, monitor performance, and resolve incidents to maintain high availability. Working in a collaborative, mission-driven culture, you'll contribute to secure, reliable solutions while benefiting from professional growth, flexible work options, and robust benefits. Responsibilities Administer, monitor, and optimize Windows and Linux servers in enterprise environments. Manage Active Directory, Group Policy, user provisioning, and access controls. Implement and maintain system security, patching, and compliance standards. Configure and troubleshoot networks, virtualization platforms, and storage systems. Manage backup, recovery, and disaster recovery procedures. Monitor system performance and resolve incidents to ensure high availability. Automate routine tasks using scripts and standard tools. Document configurations, procedures, and changes following Leidos standards. Collaborate with security, network, and engineering teams on projects and upgrades. Support on-call rotation for critical systems as needed. Required Skills Windows and Linux server administration Active Directory and Group Policy management Virtualization (VMware/Hyper-V) Network configuration and troubleshooting System monitoring and performance tuning Backup and disaster recovery management Shell/Power Shell scripting Security hardening and patch management Cloud platforms (AWS/Azure) Configuration management and documentation
11/11/2026
Full time
Leidos is seeking a System Administrator to support mission-critical IT environments for government and commercial clients. In this role, you will administer and secure Windows and Linux servers, manage Active Directory, and support virtualization, storage, and networked systems. You'll implement patching, backup, and disaster recovery, monitor performance, and resolve incidents to maintain high availability. Working in a collaborative, mission-driven culture, you'll contribute to secure, reliable solutions while benefiting from professional growth, flexible work options, and robust benefits. Responsibilities Administer, monitor, and optimize Windows and Linux servers in enterprise environments. Manage Active Directory, Group Policy, user provisioning, and access controls. Implement and maintain system security, patching, and compliance standards. Configure and troubleshoot networks, virtualization platforms, and storage systems. Manage backup, recovery, and disaster recovery procedures. Monitor system performance and resolve incidents to ensure high availability. Automate routine tasks using scripts and standard tools. Document configurations, procedures, and changes following Leidos standards. Collaborate with security, network, and engineering teams on projects and upgrades. Support on-call rotation for critical systems as needed. Required Skills Windows and Linux server administration Active Directory and Group Policy management Virtualization (VMware/Hyper-V) Network configuration and troubleshooting System monitoring and performance tuning Backup and disaster recovery management Shell/Power Shell scripting Security hardening and patch management Cloud platforms (AWS/Azure) Configuration management and documentation
Leidos is seeking a System Administrator to support mission-critical IT environments for government and commercial clients. In this role, you will administer and secure Windows and Linux servers, manage Active Directory, and support virtualization, storage, and networked systems. You'll implement patching, backup, and disaster recovery, monitor performance, and resolve incidents to maintain high availability. Working in a collaborative, mission-driven culture, you'll contribute to secure, reliable solutions while benefiting from professional growth, flexible work options, and robust benefits. Responsibilities Administer, monitor, and optimize Windows and Linux servers in enterprise environments. Manage Active Directory, Group Policy, user provisioning, and access controls. Implement and maintain system security, patching, and compliance standards. Configure and troubleshoot networks, virtualization platforms, and storage systems. Manage backup, recovery, and disaster recovery procedures. Monitor system performance and resolve incidents to ensure high availability. Automate routine tasks using scripts and standard tools. Document configurations, procedures, and changes following Leidos standards. Collaborate with security, network, and engineering teams on projects and upgrades. Support on-call rotation for critical systems as needed. Required Skills Windows and Linux server administration Active Directory and Group Policy management Virtualization (VMware/Hyper-V) Network configuration and troubleshooting System monitoring and performance tuning Backup and disaster recovery management Shell/Power Shell scripting Security hardening and patch management Cloud platforms (AWS/Azure) Configuration management and documentation
11/11/2026
Full time
Leidos is seeking a System Administrator to support mission-critical IT environments for government and commercial clients. In this role, you will administer and secure Windows and Linux servers, manage Active Directory, and support virtualization, storage, and networked systems. You'll implement patching, backup, and disaster recovery, monitor performance, and resolve incidents to maintain high availability. Working in a collaborative, mission-driven culture, you'll contribute to secure, reliable solutions while benefiting from professional growth, flexible work options, and robust benefits. Responsibilities Administer, monitor, and optimize Windows and Linux servers in enterprise environments. Manage Active Directory, Group Policy, user provisioning, and access controls. Implement and maintain system security, patching, and compliance standards. Configure and troubleshoot networks, virtualization platforms, and storage systems. Manage backup, recovery, and disaster recovery procedures. Monitor system performance and resolve incidents to ensure high availability. Automate routine tasks using scripts and standard tools. Document configurations, procedures, and changes following Leidos standards. Collaborate with security, network, and engineering teams on projects and upgrades. Support on-call rotation for critical systems as needed. Required Skills Windows and Linux server administration Active Directory and Group Policy management Virtualization (VMware/Hyper-V) Network configuration and troubleshooting System monitoring and performance tuning Backup and disaster recovery management Shell/Power Shell scripting Security hardening and patch management Cloud platforms (AWS/Azure) Configuration management and documentation
Leidos is seeking a System Administrator to support mission-critical IT environments for government and commercial clients. In this role, you will administer and secure Windows and Linux servers, manage Active Directory, and support virtualization, storage, and networked systems. You'll implement patching, backup, and disaster recovery, monitor performance, and resolve incidents to maintain high availability. Working in a collaborative, mission-driven culture, you'll contribute to secure, reliable solutions while benefiting from professional growth, flexible work options, and robust benefits. Responsibilities Administer, monitor, and optimize Windows and Linux servers in enterprise environments. Manage Active Directory, Group Policy, user provisioning, and access controls. Implement and maintain system security, patching, and compliance standards. Configure and troubleshoot networks, virtualization platforms, and storage systems. Manage backup, recovery, and disaster recovery procedures. Monitor system performance and resolve incidents to ensure high availability. Automate routine tasks using scripts and standard tools. Document configurations, procedures, and changes following Leidos standards. Collaborate with security, network, and engineering teams on projects and upgrades. Support on-call rotation for critical systems as needed. Required Skills Windows and Linux server administration Active Directory and Group Policy management Virtualization (VMware/Hyper-V) Network configuration and troubleshooting System monitoring and performance tuning Backup and disaster recovery management Shell/Power Shell scripting Security hardening and patch management Cloud platforms (AWS/Azure) Configuration management and documentation
11/11/2026
Full time
Leidos is seeking a System Administrator to support mission-critical IT environments for government and commercial clients. In this role, you will administer and secure Windows and Linux servers, manage Active Directory, and support virtualization, storage, and networked systems. You'll implement patching, backup, and disaster recovery, monitor performance, and resolve incidents to maintain high availability. Working in a collaborative, mission-driven culture, you'll contribute to secure, reliable solutions while benefiting from professional growth, flexible work options, and robust benefits. Responsibilities Administer, monitor, and optimize Windows and Linux servers in enterprise environments. Manage Active Directory, Group Policy, user provisioning, and access controls. Implement and maintain system security, patching, and compliance standards. Configure and troubleshoot networks, virtualization platforms, and storage systems. Manage backup, recovery, and disaster recovery procedures. Monitor system performance and resolve incidents to ensure high availability. Automate routine tasks using scripts and standard tools. Document configurations, procedures, and changes following Leidos standards. Collaborate with security, network, and engineering teams on projects and upgrades. Support on-call rotation for critical systems as needed. Required Skills Windows and Linux server administration Active Directory and Group Policy management Virtualization (VMware/Hyper-V) Network configuration and troubleshooting System monitoring and performance tuning Backup and disaster recovery management Shell/Power Shell scripting Security hardening and patch management Cloud platforms (AWS/Azure) Configuration management and documentation
Leidos seeks a Cybersecurity Engineer to support the development, integration, testing, production, delivery, and sustainment of defense systems and software. You will apply security requirements throughout the engineering lifecycle, assess system architectures and vulnerabilities, guide risk reduction, and support Risk Management Framework documentation and authorization activities. Responsibilities Identify cybersecurity requirements from Do D policies, NIST publications, DFARS, CMMC, RMF controls, STIGs, program protection, SCRM, and customer requirements. Help establish system security boundaries, information flows, interfaces, cybersecurity assumptions, and constraints. Participate in system and software architecture development and design reviews; identify weaknesses and recommend risk reductions. Provide engineering guidance on authentication, authorization, encryption, key management, logging, secure communications, network segmentation, and data protection. Perform or coordinate vulnerability assessments using approved security assessment tools and coordinate remediation recommendations with engineering teams. Prepare and maintain RMF artifacts and support authorization approaches such as IATT, ATO, and Assess-Only. Required Skills Do D cybersecurity requirements NIST SP 800-53 NIST SP 800-37 RMFNIST SP 800-171 NIST SP 800-218 SSDFRisk Management Framework (RMF) documentation Vulnerability assessment tools (ACAS/Nessus) SCAP/STIG assessment tools Secure system and software engineering Cybersecurity architecture assessment
11/11/2026
Full time
Leidos seeks a Cybersecurity Engineer to support the development, integration, testing, production, delivery, and sustainment of defense systems and software. You will apply security requirements throughout the engineering lifecycle, assess system architectures and vulnerabilities, guide risk reduction, and support Risk Management Framework documentation and authorization activities. Responsibilities Identify cybersecurity requirements from Do D policies, NIST publications, DFARS, CMMC, RMF controls, STIGs, program protection, SCRM, and customer requirements. Help establish system security boundaries, information flows, interfaces, cybersecurity assumptions, and constraints. Participate in system and software architecture development and design reviews; identify weaknesses and recommend risk reductions. Provide engineering guidance on authentication, authorization, encryption, key management, logging, secure communications, network segmentation, and data protection. Perform or coordinate vulnerability assessments using approved security assessment tools and coordinate remediation recommendations with engineering teams. Prepare and maintain RMF artifacts and support authorization approaches such as IATT, ATO, and Assess-Only. Required Skills Do D cybersecurity requirements NIST SP 800-53 NIST SP 800-37 RMFNIST SP 800-171 NIST SP 800-218 SSDFRisk Management Framework (RMF) documentation Vulnerability assessment tools (ACAS/Nessus) SCAP/STIG assessment tools Secure system and software engineering Cybersecurity architecture assessment
Leads software architecture, integration, and engineering for a mission-focused cyberspace system. Directs software teams, establishes technical standards, oversees mission applications and DevSecOps capabilities, and coordinates with engineering and program stakeholders to deliver secure, scalable, and supportable solutions. Responsibilities Lead software architecture, application integration, automation, and engineering direction. Manage and develop technical leads and engineering personnel across software teams. Establish software architecture, standards, design patterns, interfaces, and integration approaches. Translate mission and customer requirements into software architectures and implementation plans. Oversee mission applications, integrations, CI/CD pipelines, build processes, packaging, and deployment automation. Coordinate with technical teams and stakeholders on software integration, sustainment, modernization, and technical risks. Required Skills Software architecture Software engineering Systems integration Application integration Distributed systems API design and integration Agile software engineering Dev Sec Ops CI/CD pipelines Automated build and deployment
11/10/2026
Full time
Leads software architecture, integration, and engineering for a mission-focused cyberspace system. Directs software teams, establishes technical standards, oversees mission applications and DevSecOps capabilities, and coordinates with engineering and program stakeholders to deliver secure, scalable, and supportable solutions. Responsibilities Lead software architecture, application integration, automation, and engineering direction. Manage and develop technical leads and engineering personnel across software teams. Establish software architecture, standards, design patterns, interfaces, and integration approaches. Translate mission and customer requirements into software architectures and implementation plans. Oversee mission applications, integrations, CI/CD pipelines, build processes, packaging, and deployment automation. Coordinate with technical teams and stakeholders on software integration, sustainment, modernization, and technical risks. Required Skills Software architecture Software engineering Systems integration Application integration Distributed systems API design and integration Agile software engineering Dev Sec Ops CI/CD pipelines Automated build and deployment
Leidos seeks a Senior AI Platform Engineer to build and accredit a secure agentic AI platform in AWS GovCloud for the U.S. Army C5ISR Center. You will lead platform engineering, RMF and ATO/cATO strategy, DevSecOps, and secure deployment practices. The hybrid role is onsite in Adelphi, MD, three days per week. Responsibilities Lead technical accreditation strategy and security controls for the agentic AI platform. Develop and maintain ATO/c ATO artifacts, including control narratives, diagrams, data flows, boundary definitions, POA&M inputs, and scan evidence. Collaborate with security and authorization stakeholders to support authorization decisions. Design, build, and operate an AWS Gov Cloud IL5 platform for agentic AI workloads. Deploy and manage containerized workloads using Kubernetes and Docker, with scaling, observability, resiliency, and recovery. Build CI/CD pipelines and infrastructure as code, integrate authorized AI services, and implement platform monitoring and MLOps practices. Required Skills AWS Gov Cloud Kubernetes Docker Infrastructure as Code Terraform Cloud Formation CI/CD pipelines Python RMF and security accreditation Dev Sec Ops
11/10/2026
Full time
Leidos seeks a Senior AI Platform Engineer to build and accredit a secure agentic AI platform in AWS GovCloud for the U.S. Army C5ISR Center. You will lead platform engineering, RMF and ATO/cATO strategy, DevSecOps, and secure deployment practices. The hybrid role is onsite in Adelphi, MD, three days per week. Responsibilities Lead technical accreditation strategy and security controls for the agentic AI platform. Develop and maintain ATO/c ATO artifacts, including control narratives, diagrams, data flows, boundary definitions, POA&M inputs, and scan evidence. Collaborate with security and authorization stakeholders to support authorization decisions. Design, build, and operate an AWS Gov Cloud IL5 platform for agentic AI workloads. Deploy and manage containerized workloads using Kubernetes and Docker, with scaling, observability, resiliency, and recovery. Build CI/CD pipelines and infrastructure as code, integrate authorized AI services, and implement platform monitoring and MLOps practices. Required Skills AWS Gov Cloud Kubernetes Docker Infrastructure as Code Terraform Cloud Formation CI/CD pipelines Python RMF and security accreditation Dev Sec Ops
Leidos seeks a Mid-Level Test Engineer to ensure quality and reliability of mission-critical IT and software solutions. In this role, you will design and execute manual and automated test plans, develop test cases for functional, integration, and regression testing, and collaborate closely with developers and analysts to validate complex requirements. You will identify and track defects, contribute to test strategy, and support performance and security testing. At Leidos, you'll work in a mission-driven, collaborative environment with strong ethics, robust benefits, flexible work options, and opportunities for continuous learning and advancement. Responsibilities Design and execute manual and automated test plans for complex IT systems Develop test cases, scripts, and data for functional, integration, and regression testing Collaborate with developers, analysts, and stakeholders to clarify requirements and acceptance criteria Identify, document, and track defects through resolution using standard tools Contribute to test strategy, coverage analysis, and risk-based testing approaches Support performance, security, and system-level testing as needed Participate in code and test reviews, providing feedback on testability and quality Generate clear test reports and metrics for project and customer stakeholders Required Skills Software testing Test case design Test automation frameworks Functional and integration testing Regression testing Defect tracking tools (e.g., JIRA, Azure Dev Ops) SQL and data validation API testing (e.g., REST, SOAP) Performance and load testing Version control (e.g., Git)
11/08/2026
Full time
Leidos seeks a Mid-Level Test Engineer to ensure quality and reliability of mission-critical IT and software solutions. In this role, you will design and execute manual and automated test plans, develop test cases for functional, integration, and regression testing, and collaborate closely with developers and analysts to validate complex requirements. You will identify and track defects, contribute to test strategy, and support performance and security testing. At Leidos, you'll work in a mission-driven, collaborative environment with strong ethics, robust benefits, flexible work options, and opportunities for continuous learning and advancement. Responsibilities Design and execute manual and automated test plans for complex IT systems Develop test cases, scripts, and data for functional, integration, and regression testing Collaborate with developers, analysts, and stakeholders to clarify requirements and acceptance criteria Identify, document, and track defects through resolution using standard tools Contribute to test strategy, coverage analysis, and risk-based testing approaches Support performance, security, and system-level testing as needed Participate in code and test reviews, providing feedback on testability and quality Generate clear test reports and metrics for project and customer stakeholders Required Skills Software testing Test case design Test automation frameworks Functional and integration testing Regression testing Defect tracking tools (e.g., JIRA, Azure Dev Ops) SQL and data validation API testing (e.g., REST, SOAP) Performance and load testing Version control (e.g., Git)
Leidos seeks a Mid-Level Test Engineer to ensure quality and reliability of mission-critical IT and software solutions. In this role, you will design and execute manual and automated test plans, develop test cases for functional, integration, and regression testing, and collaborate closely with developers and analysts to validate complex requirements. You will identify and track defects, contribute to test strategy, and support performance and security testing. At Leidos, you'll work in a mission-driven, collaborative environment with strong ethics, robust benefits, flexible work options, and opportunities for continuous learning and advancement. Responsibilities Design and execute manual and automated test plans for complex IT systems Develop test cases, scripts, and data for functional, integration, and regression testing Collaborate with developers, analysts, and stakeholders to clarify requirements and acceptance criteria Identify, document, and track defects through resolution using standard tools Contribute to test strategy, coverage analysis, and risk-based testing approaches Support performance, security, and system-level testing as needed Participate in code and test reviews, providing feedback on testability and quality Generate clear test reports and metrics for project and customer stakeholders Required Skills Software testing Test case design Test automation frameworks Functional and integration testing Regression testing Defect tracking tools (e.g., JIRA, Azure Dev Ops) SQL and data validation API testing (e.g., REST, SOAP) Performance and load testing Version control (e.g., Git)
11/08/2026
Full time
Leidos seeks a Mid-Level Test Engineer to ensure quality and reliability of mission-critical IT and software solutions. In this role, you will design and execute manual and automated test plans, develop test cases for functional, integration, and regression testing, and collaborate closely with developers and analysts to validate complex requirements. You will identify and track defects, contribute to test strategy, and support performance and security testing. At Leidos, you'll work in a mission-driven, collaborative environment with strong ethics, robust benefits, flexible work options, and opportunities for continuous learning and advancement. Responsibilities Design and execute manual and automated test plans for complex IT systems Develop test cases, scripts, and data for functional, integration, and regression testing Collaborate with developers, analysts, and stakeholders to clarify requirements and acceptance criteria Identify, document, and track defects through resolution using standard tools Contribute to test strategy, coverage analysis, and risk-based testing approaches Support performance, security, and system-level testing as needed Participate in code and test reviews, providing feedback on testability and quality Generate clear test reports and metrics for project and customer stakeholders Required Skills Software testing Test case design Test automation frameworks Functional and integration testing Regression testing Defect tracking tools (e.g., JIRA, Azure Dev Ops) SQL and data validation API testing (e.g., REST, SOAP) Performance and load testing Version control (e.g., Git)
Lead technical strategy and customer engagement for Leidos Government Services growth opportunities. Shape requirements, evaluate technology and industry trends, develop integrated solutions, support proposals and business development, and guide technical teams serving federal, state and civilian mission customers. Periodic travel to customer and program sites is expected; preference for candidates local to the DC Metro area. Responsibilities Conduct market research and compare technologies for mission operations, research, environmental, logistics and civilian mission processes. Engage government customers to analyze needs and align them with industry trends and company solutions. Support opportunity shaping by communicating technical differentiators and integrating technologies into customer operations. Partner with business development teams on strategy and assessment of future technical and skills needs. Organize project workloads and assign qualified individuals to specific tasks. Direct technical organizations to meet specifications, campaign strategies and business objectives. Required Skills Market research Technology assessment Requirements gathering Solution development Systems integration Mission operations Business development strategy Proposal support Geospatial technology Supply chain logistics
11/08/2026
Full time
Lead technical strategy and customer engagement for Leidos Government Services growth opportunities. Shape requirements, evaluate technology and industry trends, develop integrated solutions, support proposals and business development, and guide technical teams serving federal, state and civilian mission customers. Periodic travel to customer and program sites is expected; preference for candidates local to the DC Metro area. Responsibilities Conduct market research and compare technologies for mission operations, research, environmental, logistics and civilian mission processes. Engage government customers to analyze needs and align them with industry trends and company solutions. Support opportunity shaping by communicating technical differentiators and integrating technologies into customer operations. Partner with business development teams on strategy and assessment of future technical and skills needs. Organize project workloads and assign qualified individuals to specific tasks. Direct technical organizations to meet specifications, campaign strategies and business objectives. Required Skills Market research Technology assessment Requirements gathering Solution development Systems integration Mission operations Business development strategy Proposal support Geospatial technology Supply chain logistics
Leidos is seeking a GEOINT Systems Test Engineer to ensure mission-critical geospatial intelligence solutions meet rigorous performance and security standards. In this role, you will design and execute test plans, develop automated and manual test cases, and validate end-to-end GEOINT workflows across complex, distributed systems. You'll collaborate with software engineers, systems architects, and analysts to refine requirements, diagnose defects, and support integration and acceptance testing in lab and operational environments. This position offers the opportunity to contribute directly to national security missions while working in a mission-driven, collaborative culture with strong support for professional growth and work-life balance. Responsibilities Design and execute test plans for GEOINT systems and services Develop automated test scripts and regression test suites Validate system performance, reliability, and security against requirements Analyze defects, document findings, and drive resolution with engineering teams Conduct integration, system, and user acceptance testing in lab and operational environments Collaborate with developers, analysts, and mission stakeholders to refine requirements Create and maintain test documentation, procedures, and reports Support deployment readiness, verification, and post-deployment validation Apply configuration management and version control to test artifacts Contribute to continuous improvement of test processes and tools Required Skills GEOINT systems testing Test plan and test case development Automated testing frameworks (e.g., Selenium, pytest) System and integration testing Performance and load testing Requirements analysis and traceability Defect tracking and test management tools (e.g., JIRA, Test Rail) Scripting languages (e.g., Python, Bash, Power Shell) Configuration management and version control (e.g., Git) Geospatial tools and standards (e.g., GIS, OGC standards)
11/08/2026
Full time
Leidos is seeking a GEOINT Systems Test Engineer to ensure mission-critical geospatial intelligence solutions meet rigorous performance and security standards. In this role, you will design and execute test plans, develop automated and manual test cases, and validate end-to-end GEOINT workflows across complex, distributed systems. You'll collaborate with software engineers, systems architects, and analysts to refine requirements, diagnose defects, and support integration and acceptance testing in lab and operational environments. This position offers the opportunity to contribute directly to national security missions while working in a mission-driven, collaborative culture with strong support for professional growth and work-life balance. Responsibilities Design and execute test plans for GEOINT systems and services Develop automated test scripts and regression test suites Validate system performance, reliability, and security against requirements Analyze defects, document findings, and drive resolution with engineering teams Conduct integration, system, and user acceptance testing in lab and operational environments Collaborate with developers, analysts, and mission stakeholders to refine requirements Create and maintain test documentation, procedures, and reports Support deployment readiness, verification, and post-deployment validation Apply configuration management and version control to test artifacts Contribute to continuous improvement of test processes and tools Required Skills GEOINT systems testing Test plan and test case development Automated testing frameworks (e.g., Selenium, pytest) System and integration testing Performance and load testing Requirements analysis and traceability Defect tracking and test management tools (e.g., JIRA, Test Rail) Scripting languages (e.g., Python, Bash, Power Shell) Configuration management and version control (e.g., Git) Geospatial tools and standards (e.g., GIS, OGC standards)
Leidos seeks a Mid-Level Test Engineer to ensure quality and reliability of mission-critical IT and software solutions. In this role, you will design and execute manual and automated test plans, develop test cases for functional, integration, and regression testing, and collaborate closely with developers and analysts to validate complex requirements. You will identify and track defects, contribute to test strategy, and support performance and security testing. At Leidos, you'll work in a mission-driven, collaborative environment with strong ethics, robust benefits, flexible work options, and opportunities for continuous learning and advancement. Responsibilities Design and execute manual and automated test plans for complex IT systems Develop test cases, scripts, and data for functional, integration, and regression testing Collaborate with developers, analysts, and stakeholders to clarify requirements and acceptance criteria Identify, document, and track defects through resolution using standard tools Contribute to test strategy, coverage analysis, and risk-based testing approaches Support performance, security, and system-level testing as needed Participate in code and test reviews, providing feedback on testability and quality Generate clear test reports and metrics for project and customer stakeholders Required Skills Software testing Test case design Test automation frameworks Functional and integration testing Regression testing Defect tracking tools (e.g., JIRA, Azure Dev Ops) SQL and data validation API testing (e.g., REST, SOAP) Performance and load testing Version control (e.g., Git)
11/08/2026
Full time
Leidos seeks a Mid-Level Test Engineer to ensure quality and reliability of mission-critical IT and software solutions. In this role, you will design and execute manual and automated test plans, develop test cases for functional, integration, and regression testing, and collaborate closely with developers and analysts to validate complex requirements. You will identify and track defects, contribute to test strategy, and support performance and security testing. At Leidos, you'll work in a mission-driven, collaborative environment with strong ethics, robust benefits, flexible work options, and opportunities for continuous learning and advancement. Responsibilities Design and execute manual and automated test plans for complex IT systems Develop test cases, scripts, and data for functional, integration, and regression testing Collaborate with developers, analysts, and stakeholders to clarify requirements and acceptance criteria Identify, document, and track defects through resolution using standard tools Contribute to test strategy, coverage analysis, and risk-based testing approaches Support performance, security, and system-level testing as needed Participate in code and test reviews, providing feedback on testability and quality Generate clear test reports and metrics for project and customer stakeholders Required Skills Software testing Test case design Test automation frameworks Functional and integration testing Regression testing Defect tracking tools (e.g., JIRA, Azure Dev Ops) SQL and data validation API testing (e.g., REST, SOAP) Performance and load testing Version control (e.g., Git)
Leidos is seeking a Sr. Technical Writer to create clear, accurate documentation for complex IT, cyber, and systems engineering solutions. You will collaborate with engineers, developers, and project teams to produce user guides, API docs, system manuals, and SOPs that support government and commercial clients. Responsibilities include interviewing subject matter experts, translating technical concepts into audience appropriate content, maintaining documentation libraries, and ensuring compliance with security and quality standards. This role thrives in a mission driven, collaborative, and fast paced environment with opportunities for growth. Responsibilities Develop and maintain user guides, API documentation, and system manuals for IT and engineering solutions Collaborate with engineers, developers, and project managers to gather and clarify technical information Translate complex technical concepts into clear, concise, audience appropriate documentation Create and update standard operating procedures and configuration guides for government and commercial clients Ensure documentation complies with security, quality, and branding standards Manage document versions and maintain an organized documentation library Edit, proofread, and peer review content for clarity, accuracy, and consistency Support proposal, training, and knowledge management documentation efforts as needed Required Skills Technical writing and editing IT and software documentation API and developer documentation Information architecture and content organization Version control and documentation management Tools such as Mad Cap Flare, Confluence, or similar Markdown, HTML, or XML authoring Requirements and systems documentation Compliance and security aware documentation Collaboration with engineers and SMEs
11/08/2026
Full time
Leidos is seeking a Sr. Technical Writer to create clear, accurate documentation for complex IT, cyber, and systems engineering solutions. You will collaborate with engineers, developers, and project teams to produce user guides, API docs, system manuals, and SOPs that support government and commercial clients. Responsibilities include interviewing subject matter experts, translating technical concepts into audience appropriate content, maintaining documentation libraries, and ensuring compliance with security and quality standards. This role thrives in a mission driven, collaborative, and fast paced environment with opportunities for growth. Responsibilities Develop and maintain user guides, API documentation, and system manuals for IT and engineering solutions Collaborate with engineers, developers, and project managers to gather and clarify technical information Translate complex technical concepts into clear, concise, audience appropriate documentation Create and update standard operating procedures and configuration guides for government and commercial clients Ensure documentation complies with security, quality, and branding standards Manage document versions and maintain an organized documentation library Edit, proofread, and peer review content for clarity, accuracy, and consistency Support proposal, training, and knowledge management documentation efforts as needed Required Skills Technical writing and editing IT and software documentation API and developer documentation Information architecture and content organization Version control and documentation management Tools such as Mad Cap Flare, Confluence, or similar Markdown, HTML, or XML authoring Requirements and systems documentation Compliance and security aware documentation Collaboration with engineers and SMEs
