Tools for Humanity

Senior Software Engineer, Android Financial Products Join to apply for the Senior Software Engineer, Android Financial Products role at Tools for Humanity About the Company World is building a real human network designed to accelerate people in the age of AI. As bots and autonomous agents reshape the internet, people, institutions, and applications need a trusted way to confirm who is a real human while preserving privacy. Our products make this possible: the Orb verifies real people, World ID proves it privately, and World App enables and distributes the new applications made possible by this technology. Together, they form a new layer for AI internet. We're one of the fastest-growing networks in tech. More than 17 million people across 160 countries have verified with World ID, and we complete over 350,000 verifications each week. World App is already among the most used wallets globally. Developers are integrating World ID to build safer online experiences and create spaces where real people can participate, earn, and be recognized in ways AI simply can't replicate. World was founded in 2019 and launched globally in 2023. We are more than 400 people across hardware, software, AI, cryptography, mobile engineering, and global operations. Our teams come from OpenAI, Tesla, SpaceX, Apple, Google, Stripe, Meta, Coinbase, Palantir and MIT Media Lab. We're backed by leading investors, including a16z, Khosla Ventures, Bain Capital Crypto, Blockchain Capital, Variant, Tiger Global, and Coinbase Ventures, as well as prominent operators and founders across fintech and AI. About The Team The World Wallet is the most popular self custody wallet in the world. The Wallet team has an ambitious vision: to be the place where people can conduct their entire daily financial lives. Every month, millions of people around the world trust the Wallet with their assets. With World Wallet, people can hold more than 100 different assets, receive their paycheck, trade and hold multiple currencies powered by stablecoins, send assets to anyone around the world instantly with no fees, earn yield and pay in the real world with QR payments and the upcoming World Card. World Wallet is a critical component of the World App, which people use to participate in the World network. We hire senior and independent engineers, and give them the resources they need to do great work. We have very few meetings; we trust each other to excel. We are highly productive, and are constantly looking for ways to improve our speed and our quality. The Opportunity Expand: Drive the growth of World Wallet by introducing new products, improving existing ones, and expanding to more territories. In your first few months, you will own the Android build of: World Card Virtual accounts launched in more countries and supporting more currencies New products around crypto native activities like trading Excel: Build core technologies and infrastructure to improve transaction success, transaction speed, security, privacy, compliance, reliability, and development velocity for World. You'll take ownership of the Android wallet app-designing, building, debugging, scaling and maintaining it to meet high standards and company goals. You'll work closely with designers, engineers, and users to deliver meaningful products. This is an opportunity to build the self custodial stablecoin wallet used by millions of users worldwide. About You You love building high quality products. You have been designing and developing natively for Android for some time. You have a track record of writing exceptional software, tackling hard problems, and working with urgency. Others consistently vouch for your prioritization, speed, organization skills, collaboration. You get things done well and quickly. You have a demonstrable history of picking up, mastering and applying new knowledge and skills. You express yourself clearly, crisply and simply, in writing and in speech. You have experience voicing customer feedback into product solutions. Interest in and passion for the domains we work in such as finance, privacy, and digital identity. By submitting your application, you consent to the processing and internal sharing of your CV within the company, in compliance with the GDPR. Pay Transparency Statement (for CA based roles) The reasonably estimated salary for this role at TFH ranges from $230,000 - $270,000, plus a competitive long term incentive package. Actual compensation is based on factors such as the candidate's skills, qualifications, and experience. In addition, TFH offers a wide range of best in class, comprehensive and inclusive employee benefits for this role including healthcare, dental, vision, a 401(k) plan and match, life insurance, flexible time off, commuter benefits, professional development stipend and much more!

Senior Software Engineer, iOS - Tools for Humanity Join to apply for the Senior Software Engineer, iOS role at Tools for Humanity. Company Overview World is building a real human network designed to accelerate people in the age of AI. As bots and autonomous agents reshape the internet, people, institutions, and applications need a trusted way to confirm who is a real human while preserving privacy. Our products make this possible: the Orb verifies real people, World ID proves it privately, and World App enables and distributes the new applications made possible by this technology. Together, they form a new layer for AI internet. We're one of the fastest growing networks in tech. More than 17 million people across 160 countries have verified with World ID, and we complete over verifications each week. World App is already among the most used wallets globally. Developers are integrating World ID to build safer online experiences and create spaces where real people can participate, earn, and be recognized in ways AI simply can't replicate. World was founded in 2019 and launched globally in 2023. We are more than 400 people across hardware, software, AI, cryptography, mobile engineering, and global operations. Our teams come from OpenAI, Tesla, SpaceX, Apple, Google, Stripe, Meta, Coinbase, Palantir, and MIT Media Lab. We're backed by leading investors, including a16z, Khosla Ventures, Bain Capital Crypto, Blockchain Capital, Variant, Tiger Global, and Coinbase Ventures, as well as prominent operators and founders across fintech and AI. Opportunity Expand: Drive the growth of World ID and World App by introducing new verification methods, enhancing existing ones, simplifying enrollment, and enabling seamless account management to reduce churn. Engage: Support real world use cases by developing product features, SDKs, cloud integrations, and privacy preserving solutions for securely attesting personal information. Collaborate with cross functional stakeholders including Marketing, Operations, Risk, Data Science, and other Engineering teams. Excel: Build core technologies and infrastructure to optimize security, privacy, compliance, reliability, and development velocity for World. Extend: Advance an open and decentralized platform for empowering third party developers to integrate World without relying on proprietary technologies and single points of failure. You'll take ownership of key software components-designing, building, debugging, scaling and maintaining them to meet high standards and team objectives. You'll work closely with product managers, designers, engineers, and other stakeholders to deliver impactful solutions. About You You have been designing and developing natively for iOS for some time. You have a track record of writing exceptional software, tackling hard problems, and coming up with elegant solutions. Others consistently vouch for your collaboration, prioritization and organization skills, ability to operate in ambiguous and changing conditions, knack of identifying and relentlessly focussing on the most important things, and getting things done. You have a demonstrable history of picking up, mastering and applying new knowledge and skills. You express yourself clearly, crisply and simply, in writing and in speech. You have experience voicing customer feedback into product solutions (engineering makes substantive contributions to product definition). Interest in and passion for the domains we work in such as finance, privacy, and digital identity. By submitting your application, you consent to the processing and internal sharing of your CV within the company, in compliance with the GDPR. Pay Transparency Statement The reasonably estimated salary for this role at TFH ranges from $221,000 - $250,000, plus a competitive long term incentive package. Actual compensation is based on factors such as the candidate's skills, qualifications, and experience. In addition, TFH offers a wide range of best in class, comprehensive and inclusive employee benefits including healthcare, dental, vision, a 401(k) plan and match, life insurance, flexible time off, commuter benefits, professional development stipend, and more.

About the Company World is a network of real humans, built on privacy preserving proof of human technology, and powered by a globally inclusive financial network that enables the free flow of digital assets for all. It is built to connect, empower, and be owned by everyone. About the Team People spend fifteen seconds with an Orb, but a lifetime with the World App. The App team plays a critical role in fulfilling our mission. Using the App, people can join the World network, participate in decentralized finance in a friendly and self custodial manner, and use their WorldID to unlock services across the ecosystem. About the Opportunity As Head of Product Design, you will be one of our most important leaders in shaping and elevating our products and experiences across all platforms. You will drive the strategic design vision, foster design excellence, and enable teams to create impactful and delightful products that align with World's vision to build the real human network for all. Responsibilities Design Leadership: Set and champion a clear vision for product design that aligns with company goals and brand values. Lead the team toward delivering consistent, high quality design across the entire product ecosystem. Roll up your sleeves: As our most senior designer, contribute directly to our most important projects. Team Management: Recruit, develop, and mentor a high performing product design team. Provide thoughtful leadership, guidance, and career development support for designers at all levels. Cross functional Collaboration: Partner closely with product and engineering teams to ensure cohesive and compelling user experiences. Be a strong voice in strategic planning and execution. Quality & Consistency: Uphold the highest standards of design craft across all outputs. Ensure visual and interaction designs are clear, functional, and beautiful, maintaining consistency with our brand. User Advocacy: Champion the voice of the user through research, data, and empathy. Ensure our solutions are inclusive, accessible, and impactful. Resilience & Adaptability: Navigate complexity with confidence, demonstrating calm leadership through periods of change and ambiguity. About You 10+ years of experience in product design, with at least 5 years in a leadership role managing design teams. A strong portfolio showcasing design excellence, systems thinking, and user centered problem solving across web and mobile platforms, with an emphasis on consumer products. Ideal but not required, has been a founder before. Impeccable taste and love for your craft. Proven experience in scaling and leading design teams in a tech driven product environment. Expertise in driving end to end product design from research to implementation. Deep understanding of design systems, accessibility standards, responsive design, and current trends in UI/UX. Strong business acumen with the ability to balance user needs with technical constraints and business goals. Familiarity with agile environments and product development cycles. Exceptional visual and interaction design skills, with a critical eye for detail. Excellent leadership and communication skills; able to inspire, influence, and align stakeholders at all levels. Strong organizational and planning abilities; capable of managing multiple priorities and large scale initiatives. Empathy, humility, and a user first mindset. Comfortable navigating ambiguity with resilience, pragmatism, and a solutions oriented approach. Compensation and Benefits The reasonably estimated salary for this role at TFH ranges from $300,000 to $350,000, plus a competitive long term incentive package. In addition, TFH offers a wide range of best in class, comprehensive, and inclusive employee benefits, including health, dental, vision, 401(k) plan and match, life insurance, flexible time off, commuter benefits, professional development stipend, and more.

Join to apply for the Senior Fraud Engineer role at Tools for Humanity About the Company World is a network of real humans, built on privacy-preserving proof of human technology, and powered by a globally inclusive financial network that enables the free flow of digital assets for all. It is built to connect, empower, and be owned by everyone. About The Team People spend fifteen seconds with an Orb, but a lifetime with the World App. As such, the App team plays a critical role in fulfilling our mission. Using the App, people can join the World network, participate in decentralized finance in a friendly and self custodial manner, and use their WorldID to unlock services across the ecosystem. The intersection of our App and our controls for Fraud, Risk, Safety, and Security are a broad set of integrations and mechanisms to ensure the safety and security of our users and the World network. This role is a broad position with responsibility across the entire surface of our application and its related systems and tooling. About the Role Own end to end the integrations of our most critical controls and ensuring that their enforcement is neither circumvented nor negatively impacting our users Face Auth, our liveness detection and time of use enforcement mechanism Integration with our Fraud Risk Engine Systems that enable our operations teams to respond to user reports and that enforce their actions across our stack SDK/API integrations with external providers Client platform specific features (Android, iOS etc) to prevent misuse. Advocate for our users, partnering with our data analytics team and our fraud/risk analytics team to identify false positives and adjust rules and system Partner with Product teams to improve the user experience for our users that come into contact with these systems. Provide broad review of engineering changes that affect these system Accomplish all the above while implementing strict access controls, data retention policies, and minimizing user data collected. About You Great at cross functional work, prioritizing, and self organizing Strong technical architecture skills across backend and mobile platforms Privacy minded and capable of adopting an adversarial mindset Strong communication skills Capable of direct individual contribution across our stack Nice to Have Skills Experience in security, fraud, trust & safety, or related domains. Mobile development - being comfortable understanding the logic implemented in our Android and iOS applications Data analysis and engineering experience - to help you build an understanding the true impact of controls By submitting your application, you consent to the processing and internal sharing of your CV within the company, in compliance with the GDPR. Pay transparency statement (for CA based roles) The reasonably estimated salary for this role at TFH ranges from $221,000 - $250,000, plus a competitive long term incentive package. Actual compensation is based on factors such as the candidate's skills, qualifications, and experience. In addition, TFH offers a wide range of best in class, comprehensive and inclusive employee benefits for this role including healthcare, dental, vision, a 401(k) plan and match, life insurance, flexible time off, commuter benefits, professional development stipend and much more! Seniority level Mid Senior level Employment type Full time Job function Finance and Sales Industries Technology, Information and Internet

A cutting-edge tech company in San Francisco seeks a Senior Software Engineer, iOS to drive the growth of blockchain solutions. Ideal candidates will design and develop new verification methods while collaborating with product managers and engineers. An exceptional grasp of iOS development, a knack for solving complex problems, and a clear communication style are crucial for this role. Compensation ranges from $221,000 - $250,000, complemented by extensive employee benefits.

Join to apply for the Head of Protocol role at Tools for Humanity World is building a real human network designed to accelerate people in the age of AI. As bots and autonomous agents reshape the internet, people, institutions, and applications need a trusted way to confirm who is a real human while preserving privacy. Our products make this possible: the Orb verifies real people, World ID proves it privately, and World App enables and distributes the new applications made possible by this technology. Together, they form a new layer for AI internet. We're one of the fastest growing networks in tech, with more than 17 million people across 160 countries verified with World ID and over verifications each week. Developers are integrating World ID to build safer online experiences and create spaces where real people can participate, earn, and be recognized in ways AI simply can't replicate. World was founded in 2019 and launched globally in 2023. We are more than 400 people across hardware, software, AI, cryptography, mobile engineering, and global operations. Our teams come from OpenAI, Tesla, SpaceX, Apple, Google, Stripe, Meta, Coinbase, Palantir and MIT Media Lab. We're backed by leading investors including a16z, Khosla Ventures, Bain Capital Crypto, Blockchain Capital, Variant, Tiger Global, Coinbase Ventures, and prominent operators and founders across fintech and AI. What You'll Do Deliver great capacity and exceptional UX: improve World Chain block execution throughput to 100 M gas per second, shorten block confirmation time, publish simple public SLOs and dashboards. 10 year architecture roadmap: codify a durable plan from today's OP Stack baseline to the end state protocol at global scale, prove the path with a public testnet and a safe, reversible mainnet cutover plan. Decentralization: design a credible decentralized sequencer strategy with automatic failover, distribute AMPC and other critical services across independent operators, align fees and incentives so that neutral parties can run core infrastructure sustainably. Interoperability and DevX: ship SDKs for uniqueness and credential attestations that let developers integrate once and run across EVM, mobile, and at least one non EVM stack, keep APIs stable and deterministic, provide reference apps and tests for fast first integrations. Team and technical visibility: build a senior, co located SF team across protocol, ZK, security, and infra, hire 8 12 ICs with clear bars, lead hands on with specs, code reviews, on call, cadence of capacity reviews, chaos drills, post mortems, publish research and standards work. Qualifications Must have: Ability to attract, hire, manage and grow senior engineers; operate hands on and write crisp design docs. Excellent written communication and public technical presence. Nice to have: Proven protocol architecture at L1/L2 or equivalent core distributed systems work at scale. Deep ZK literacy and Ethereum/rollup stack expertise. Track record shipping audited, upgradeable on chain systems with clear SLOs and dashboards. Device attestation or secure hardware integration. EIP or standards authorship; multi client experience. Prior leadership of an open protocol community. Pay Transparency The reasonably estimated salary for this role at Tools for Humanity is $400,000, plus a competitive long term incentive package. Actual compensation is based on factors such as the candidate's skills, qualifications, and experience. TFH offers a wide range of best in class, comprehensive, and inclusive employee benefits including healthcare, dental, vision, 401(k) plan and match, life insurance, flexible time off, commuter benefits, professional development stipend, and more. By submitting your application, you consent to the processing and internal sharing of your CV within the company, in compliance with the GDPR.

About the Company World is a network of real humans, built on privacy-preserving proof of human technology, and powered by a globally inclusive financial network that enables the free flow of digital assets for all. It is built to connect, empower, and be owned by everyone. About the Team Join a lean, high impact IT Engineering team that acts as a critical force multiplier for Tools for Humanity. Our team's mission is to empower every employee with a seamless, secure, and powerful technology environment. We don't just solve problems; we thoughtfully engineer solutions that anticipate needs and enable the entire company to move forward seamlessly. About the Opportunity This is not just a support role; it's an opportunity to build, automate, and own the IT and infrastructure that powers a global movement. You won't be looking at tickets all day - you will help define the next iteration of enterprise tools and services. Infrastructure as Code, API Integration Management, and Internal Tool development will be your domain. Your responsibilities will range from helping automate processes in service of our world class team, to deploying, maintaining, and securing best in class systems. A key part of your role will be designing and building automations that connect our systems, reduce operational overhead, and enhance our security posture. About You You are an experienced IT professional who thinks like an engineer. You're not content with manual processes and are always looking for ways to automate and improve systems. You have a minimum of 7 years of industry experience. You've governed an Identity environment via "Infrastructure as code" frameworks, ideally Terraform. You've built and deployed API integrations via tools like Workato. You've helped build internal tools specific to your organization leveraging services such as Re Tool. Experience with enterprise LLM management tools. You are a proactive and thoughtful problem solver, taking the initiative to see challenges through to resolution. You are a kind and clear communicator, able to work effectively with a distributed team and patiently support colleagues with different technical backgrounds. You enjoy coaching and mentoring others. By submitting your application, you consent to the processing and internal sharing of your CV within the company, in compliance with the GDPR. Pay Transparency Statement The reasonably estimated salary for this role at TFH ranges from $174,500 - $190,000, plus a competitive long term incentive package. Actual compensation is based on factors such as the candidate's skills, qualifications, and experience. In addition, TFH offers a wide range of best in class, comprehensive and inclusive employee benefits for this role including healthcare, dental, vision, a 401(k) plan and match, life insurance, flexible time off, commuter benefits, professional development stipend and much more! Seniority Level Mid Senior level Employment Type Full time Job Function Engineering and Information Technology

Overview About the Company: World is building a real human network designed to accelerate people in the age of AI. As bots and autonomous agents reshape the internet, people, institutions, and applications need a trusted way to confirm who is a real human while preserving privacy. Our products make this possible: the Orb verifies real people, World ID proves it privately, and World App enables and distributes the new applications made possible by this technology. Together, they form a new layer for AI internet. About the Company: World is building a real human network designed to accelerate people in the age of AI. As bots and autonomous agents reshape the internet, people, institutions, and applications need a trusted way to confirm who is a real human while preserving privacy. Our products make this possible: the Orb verifies real people, World ID proves it privately, and World App enables and distributes the new applications made possible by this technology. Together, they form a new layer for AI internet. We're one of the fastest-growing networks in tech. More than 17 million people across 160 countries have verified with World ID, and we complete over 350,000 verifications each week. World App is already among the most used wallets globally. Developers are integrating World ID to build safer online experiences and create spaces where real people can participate, earn, and be recognized in ways AI simply can't replicate. World was founded in 2019 and launched globally in 2023. We are more than 400 people across hardware, software, AI, cryptography, mobile engineering, and global operations. Our teams come from OpenAI, Tesla, SpaceX, Apple, Google, Stripe, Meta, Coinbase, Palantir and MIT Media Lab. We're backed by leading investors, including a16z, Khosla Ventures, Bain Capital Crypto, Blockchain Capital, Variant, Tiger Global, and Coinbase Ventures, as well as prominent operators and founders across fintech and AI. World has been featured on the cover of TIME Magazine, highlighted in Fast Company's Next 5 in Fintech, and explored in a Bloomberg deep dive. The New York Times, Bankless and TechCrunch have all recognized our progress in identity, cryptography, AI, and global-scale hardware deployment. Our leadership is also named to the Time AI 100. Learn more about the newest product launches from our Unwrapped event. About The Team The Security team at Tools for Humanity operates at a level far beyond a regular company. Our objective is not just to secure an organization, but to build the trusted, foundational infrastructure for the world's largest identity and financial network. We are a team of over 15 seasoned engineers who are central to the success of the World protocol. We tackle a unique and complex threat landscape that spans state-of-the-art hardware security for the Orb, advanced cryptography including new zero-knowledge proofs, and the security of a global, distributed cloud and mobile ecosystem. Our work is critical to enabling the protocol to scale to billions of users while upholding an unwavering commitment to fail-safe security and privacy. About The Opportunity As a Product Security Engineer, you will be a hands-on technical leader responsible for safeguarding the products and services that power the World project. You will be "In the Driver's Seat," proactively embedding security into every stage of the development lifecycle. This is not a role for box-tickers; you will be expected to think from first principles to solve novel security challenges at a global scale. Your work will directly protect our users and ensure the integrity of a protocol designed for the majority of humanity. You will: Lead secure architecture reviews and threat modeling sessions for new application and cloud services. Engineer and implement automated security guardrails and reusable libraries to make the secure path the easy path for developers. Perform deep-dive, security-focused code and infrastructure reviews in languages like Rust, Go, and Python. Own the vulnerability management process, from triaging bug bounty submissions to driving remediation efforts with engineering teams. Mature and scale our Secure SDLC and bug bounty programs to keep pace with a rapidly growing engineering organization. About You You are a pragmatic and deeply technical security engineer who thrives on solving complex problems. You have a builder's mindset and are passionate about shipping secure products with "Extreme Urgency." You are comfortable with ambiguity and are driven by the opportunity to secure systems with world-changing potential. You have 12+ years of hands-on experience in Product Security, Application Security, or Cloud Security. You are proficient in code review and development in languages like Rust, Go, and Python. You have extensive experience securing modern AWS architectures and developing secure infrastructure-as-code (e.g., Terraform and CDK). You are an expert in leading threat modeling sessions and providing actionable guidance to engineering teams. You have a strong background in implementing and managing security tooling (SAST, DAST, SCA) and embedding security into CI/CD pipelines. You have a deep understanding of web and API security principles (OWASP Top 10) and have experience securing distributed, mobile-first systems. Nice to have: Experience scaling a security champions program, expertise in Kubernetes (EKS) and container security or a particular interest in securing mobile applications or smart contracts. What we offer The reasonably estimated salary for this role at Tools for Humanity ranges from $276,000 - $320,000 plus a competitive long-term incentive package. Actual compensation is based on factors such as the candidate's skills, qualifications, and experience. In addition, Tools for Humanity offers a wide range of best-in-class, comprehensive, and inclusive employee benefits for this role, including healthcare, dental, vision, 401(k) plan and match, life insurance, flexible time off, commuter benefits, professional development stipend, and much more. By submitting your application, you consent to the processing and internal sharing of your CV within the company, in compliance with the GDPR. If you don't think you meet all of the criteria but are still interested in the job, please apply. Nobody checks every box, and we're looking for someone excited to join the team.

1 day ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. About the Company World is a network of real humans, built on privacy-preserving proof-of-human technology, and powered by a globally inclusive financial network that enables the free flow of digital assets for all. It is built to connect, empower, and be owned by everyone. About the Team Our Infrastructure team is a collaborative group of experienced engineers dedicated to supporting the World project's mission. With diverse backgrounds from across the technology landscape, we work together to solve complex challenges and provide a stable foundation for the entire organization. We are now thoughtfully expanding our team from Europe to the U.S., and we're looking for a new member to help us grow. We believe in sharing knowledge and supporting each other as we tackle the unique opportunity of building infrastructure for a global community. About The Opportunity We are looking for a Staff Infrastructure Engineer to help establish our team's presence in the United States. This is a meaningful role where you will contribute significantly to the technical direction and best practices for our infrastructure in the region. Your work will involve a thoughtful blend of responsibilities, from hands on systems administration to building reliable automation and contributing to our Site Reliability Engineering (SRE) practice. There is never a dull day; your contributions will support a wide variety of critical systems, including our anonymous multi party computation platforms, internal security services, and blockchain node deployments. Ultimately, your work will directly support our teams and the project's long term goals. About You With at least 10 years of experience, you are a senior infrastructure engineer who enjoys both teaching and learning from your peers. You have a strong foundation in systems engineering, including hands on experience with Linux, networking, and cloud environments like AWS or GCP. You enjoy building tools and automation that make work easier and more reliable for everyone, with experience in infrastructure as code tools like Terraform. You are a proactive and thoughtful problem solver, taking the initiative to see challenges through to resolution. You are a kind and clear communicator, able to work effectively with a distributed team and patiently support colleagues with different technical backgrounds. You are motivated by the opportunity to contribute your expertise to a project with a broad and positive mission. Your background includes experience working on large scale, distributed systems. By submitting your application, you consent to the processing and internal sharing of your CV within the company, in compliance with the GDPR. Pay Transparency Statement (for CA based roles) The reasonably estimated base salary for this role at TFH ranges from $276,500 - $300,000, plus a competitive long term incentive package. Actual compensation is based on factors such as the candidate's skills, qualifications, and experience. In addition, TFH offers a wide range of best in class, comprehensive and inclusive employee benefits for this role including healthcare, dental, vision, a 401(k) plan and match, life insurance, flexible time off, commuter benefits, professional development stipend and much more! We're unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.

A leading technology organization in San Francisco is looking for a Staff Software Engineer to develop core technologies for their decentralized identity protocol. This role emphasizes technical leadership, mentorship, and strategic impact on the platform. Ideal candidates will have experience in backend systems and collaborative environments, ensuring impactful solutions. Salary range is $225,500 - $265,000, along with competitive benefits.

Full Stack Software Engineer, World ID Tools for Humanity About the Company World is building a real human network designed to accelerate people in the age of AI. As bots and autonomous agents reshape the internet, people, institutions, and applications need a trusted way to confirm who is a real human while preserving privacy. Our products make this possible: the Orb verifies real people, World ID proves it privately, and World App enables and distributes the new applications made possible by this technology. Together, they form a new layer for the AI internet. We're one of the fastest-growing networks in tech. More than 17 million people across 160 countries have verified with World ID, and we complete over 350,000 verifications each week. World App is already among the most used wallets globally. Developers are integrating World ID to build safer online experiences and create spaces where real people can participate, earn, and be recognized in ways AI simply can't replicate. World was founded in 2019 and launched globally in 2023. We have over 400 people across hardware, software, AI, cryptography, mobile engineering, and global operations. Our teams come from OpenAI, Tesla, SpaceX, Apple, Google, Stripe, Meta, Coinbase, Palantir and MIT Media Lab. We're backed by leading investors, including a16z, Khosla Ventures, Bain Capital Crypto, Blockchain Capital, Variant, Tiger Global, and Coinbase Ventures. World has been featured on the cover of TIME Magazine, highlighted in Fast Company's Next 5 in Fintech, and explored in a Bloomberg deep dive. The New York Times, Bankless and TechCrunch have all recognized our progress in identity, cryptography, AI, and global-scale hardware deployment. Our leadership is also named to the Time AI 100. Responsibilities Web SDK Development: Own the design, development, and maintenance of our public-facing JavaScript/TypeScript SDK, ensuring it is robust, well-documented, and easy for partners to use. Partner Integrations: Work directly with partners to support their integration efforts, building reference applications, browser add-ons, and other tools to ensure their success on our platform. API Development: Build and scale efficient, reliable APIs and backend services using TypeScript to support our own applications, SDKs, and partner needs. Web Application Development: Design, build and maintain essential web components, reference implementations and end user facing applications that use World ID. Cross functional Collaboration: Work closely with product managers, designers, other engineers and XFN stakeholders to deliver cohesive and impactful solutions. Technical Leadership: Optionally support a small group of junior engineers and external contractors as a hands on technical lead, guiding design, reviewing code, and ensuring urgency, completeness and quality. About you You have a proven track record of building high quality web applications and well designed developer APIs and SDKs. You are fluent in the modern web stack and possess the backend proficiency to build and manage the services that power your applications. You are passionate about creating excellent developer experiences and understand that the success of an SDK is measured by the success of the developers who use it. You can communicate clearly, work effectively in a fast paced environment, and are motivated by the challenge of building the user and developer facing layers of an ambitious, world changing protocol. You are an effective and respected tech lead of small teams. Requirements Excellent communication skills and a collaborative mindset, with the ability to articulate technical concepts to both technical and non technical audiences. Experience supporting third party developers and partner integrations. Expertise with modern web frameworks based on JavaScript and TypeScript. Experience building and maintaining public facing SDKs or developer focused libraries. Experience with server side development and building RESTful APIs (familiarity with Go, Rust, or other compiled languages is a plus). Ability to work across the full stack, from web servers and simple database interactions to client side application logic. By submitting your application, you consent to the processing and internal sharing of your CV within the company, in compliance with the GDPR. Pay transparency statement The reasonably estimated salary for this role at TFH ranges from $220,000 - $250,000, plus a competitive long term incentive package. Actual compensation is based on factors such as the candidate's skills, qualifications, and experience. TFH offers a wide range of best in class, comprehensive and inclusive employee benefits including healthcare, dental, vision, a 401(k) plan and match, life insurance, flexible time off, commuter benefits, professional development stipend and much more.

A leading tech company in San Francisco is seeking a Full Stack Software Engineer to design and maintain public-facing SDKs and APIs. The ideal candidate will have a strong background in JavaScript and TypeScript, excellent communication skills, and experience in creating developer-focused tools. This role involves close collaboration with partners, ensuring successful integration and delivering impactful solutions. Competitive salary ranges from $220,000 to $250,000, complemented by comprehensive benefits.

A leading tech organization is seeking a Product Security Engineer to lead security initiatives and safeguard its innovative products. This hands-on role involves embedding security throughout the development lifecycle, performing in-depth code reviews, and managing vulnerability processes. Candidates should have over 12 years of experience, proficiency in Rust, Go, and Python, and be adept in modern cloud architecture security. The position offers a competitive salary and a comprehensive benefits package, emphasizing the importance of proactive security measures in technology.

A leading technology organization in San Francisco seeks an experienced IT professional for a full-time role in their engineering team. The individual will automate and enhance IT infrastructure, manage API integrations, and support internal tool development. Candidates should have 7+ years of experience, with a strong emphasis on Infrastructure as Code and automation skills. A competitive salary ranging from $174,500 to $190,000, alongside comprehensive employee benefits, is offered.

About the Company World is a network of real humans, built on privacy-preserving proof-of-human technology, and powered by a globally inclusive financial network that enables the free flow of digital assets for all. It is built to connect, empower, and be owned by everyone. About the Team World ID is a digital identity system and proof of humanity for everyone, designed to be a foundational identity protocol for the internet in the era of AGI. It is built to be self-custodial, secure, decentralized and open, setting new standards for privacy and transparency. At the heart of World ID are groundbreaking innovations in hardware and software-spanning distributed systems, cryptography, sensors, biometrics, machine learning and blockchain technology. As part of the team behind World ID, you'll work on defining and building the decentralized platform that underlies World ID, product experiences and partner integrations. You'll help shape the future of technologies needed to realize this ambitious vision. About the Opportunity As a Staff Software Engineer, you will focus on building core technologies and infrastructure to drive scale, utility and decentralization for World ID protocol and its ecosystem. Your work will span critical technology areas including issuance and registration of credentials, decentralized cloud platform for applications and authenticators lifecycle using MPC systems and blockchain, zero-knowledge proving systems, biometric verification and recovery systems, World network integration platforms and building products using technologies that would delight users. Responsibilities Architecting and Building: You will take ownership of the design, development, and scaling for mission-critical software, including architecting decentralized, privacy preserving, secure, scalable and reliable backend systems. Technical Leadership: You will provide technical guidance to the engineering team and lead complex, cross-functional projects. Your work will ensure the team delivers elegant and effective solutions for a variety of novel challenges some of which have never been done before. Mentorship and Collaboration: You will mentor junior engineers and work closely with senior leadership, product managers and other XFN stakeholders to deliver impactful solutions that advance the World network. Strategic Impact: You will play a key role in shaping the technical roadmap and strategy for the World ID platform. You are expected to identify the most important tasks and drive them to completion. Your ability to collaborate and stay organized in a fast-paced environment is key. About you You have a proven track record of designing and developing exceptional backend systems and solving complex problems, preferably with experience in distributed systems or identity management platforms. You are a fast learner who can quickly master and apply new knowledge and skills. You can communicate clearly and concisely, and your colleagues consistently vouch for your ability to collaborate effectively in ambiguous and changing environments. You are great at building software and are motivated by the challenge of realizing this ambitious vision. Requirements for this role Experience in senior technical leadership positions. Proven experience leading complex initiatives from start to finish. Demonstrated ability to mentor and guide engineering teams to help them level up and increase their impact. Deep expertise in designing and implementing software systems that are both reliable and scalable, with a strong grasp of fundamentals. Excellent communication skills, both written and verbal, for technical and non-technical audiences. By submitting your application, you consent to the processing and internal sharing of your CV within the company, in compliance with the GDPR. Pay transparency statement (for CA based roles): The reasonably estimated salary for this role at TFH ranges from $225,500 - $265,000, plus a competitive long term incentive package. Actual compensation is based on factors such as the candidate's skills, qualifications, and experience. In addition, TFH offers a wide range of best in class, comprehensive and inclusive employee benefits for this role including healthcare, dental, vision, a 401(k) plan and match, life insurance, flexible time off, commuter benefits, professional development stipend and much more! Seniority level Mid-Senior level Employment type Full-time Job function Engineering and Information Technology Industries Technology, Information and Internet We're unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.