Top Senior Full-Stack Engineer Jobs in San Francisco, CA

Develop and deploy generative AI products across the full stack. Build high-performance user interfaces and backend systems for analyzing millions of contracts, while designing scalable pipelines for LLM orchestration, data extraction, and document clustering. Collaborate with designers, lawyers, and engineers to transform legal workflows through AI products.

Leads large-scale full-stack engineering initiatives, technical architecture, and developer teams building distributed, cloud-native systems. Designs reliable microservices and platform solutions using modern programming languages, databases, containers, and cloud services. Partners with product leaders and architects on technology roadmaps, mentors engineers, establishes engineering standards, drives observability and performance improvements, and leads cross-functional technical initiatives.

Develop and maintain a full-stack web application and platform for fraud analysis. Build APIs and user interfaces, write automated tests, troubleshoot production issues, collaborate with product, design, data science, infrastructure, and solutions engineering teams, and participate in on-call support. Use React, Golang, Python, PostgreSQL, Docker, and AWS technologies to deliver reliable products and meet service-level requirements.

Develop and maintain a fraud-analysis web application and platform. Build APIs and user interfaces, write automated tests, troubleshoot production issues, collaborate with product and cross-functional teams, analyze product metrics, and support SLA compliance through production on-call rotation.

Leads technical vision and architecture for customer resiliency systems. Designs scalable, operable solutions; modernizes monoliths into microservices and event-driven platforms; establishes API and engineering standards; and contributes hands-on across the software lifecycle. Collaborates with senior leaders, mentors engineers, drives cross-divisional initiatives, promotes engineering excellence, and advises on enterprise architecture, cloud computing, data architecture, performance, and scalability.

Build and ship custom full-stack programs for AI labs and product teams, including capture flows, task logic, data pipelines, validation, redaction, provenance, and delivery across web, mobile, and backend systems. Partner directly with technical customers to scope ambiguous requirements, determine what to reuse or build, ship production code, establish data quality processes, and turn repeatable custom solutions into core platform capabilities.

Senior full-stack engineer who builds backend-heavy features and customer-facing React UIs. Own end-to-end delivery: design, implement, test, monitor, and iterate on scalable RESTful microservices using raw SQL and cloud patterns. Collaborate with product and design, review code, ensure reliability, security, and data correctness.

Lead technical direction and implementation of large-scale product features, delivering secure, reliable, maintainable full-stack software. Collaborate with product, design, and engineering teams, address production issues, conduct code reviews, document solutions, and mentor teammates. Build and test front-end and server-side systems using modern frameworks, APIs, databases, and data-driven development practices.

Develop and operate CrowdStrike’s internal cloud management platform and mission-critical CI/CD pipelines. Build APIs and UIs using Go and TypeScript, improve developer productivity, integrate tooling, maintain cloud-native infrastructure, and support secure, highly available software delivery systems. Collaborate with development, infrastructure, security, and SRE teams, ensure SOC2-aware processes, and participate in on-call operations.

Build and support full-stack applications for developing, training, simulating, and evaluating autonomous systems. Develop React and TypeScript interfaces, backend services, APIs, data models, and Python workflows. Deploy and troubleshoot containerized services across local, cloud, on-premises, and air-gapped Kubernetes environments. Collaborate with users, product, design, and engineering teams to translate complex workflows into reliable, extensible applications and reusable platform capabilities.

Build and support production full-stack applications with a frontend focus using TypeScript and React. Design intuitive interfaces for simulation, synthetic data, testing, evaluation, and autonomy workflows. Integrate APIs and backend services, improve performance and accessibility, test complete user workflows, and create reusable components and extension points. Collaborate closely with developers, product, design, and domain experts to deliver reliable applications across local, cluster, edge, and air-gapped environments.

Senior Full Stack Engineer responsible for architecting and delivering AI-driven backend and frontend systems. The role leads complex technical initiatives, defines roadmaps, designs scalable APIs and data models, and champions JavaScript, Node.js, testing, observability, and Spec-Driven Development. It requires building and scaling distributed, event-driven microservices; working with financial infrastructure; mentoring engineers; and translating ambiguous business objectives into reliable technical solutions.

As a Senior Full-Stack Engineer, you will build applications for clinical operations, design APIs, implement real-time interfaces, and collaborate with teams on patient data management.

Build and maintain MeshMesh backend services, APIs, and customer-facing full-stack features. Collaborate with product and design teams, write tested and maintainable code, and participate in code reviews. The role requires production experience across frontend and backend layers, modern web frameworks, backend languages, API design, and AI-assisted development using Claude or similar tools. Networking, real-time systems, early-stage product scaling, DevOps, security, and architecture experience are preferred.

The Senior Full-Stack Engineer will manage client relationships, design integration solutions, and ensure seamless delivery and optimization of technical workflows, while leveraging AI for efficiency.

Lead full-stack software features from discovery through deployment and refinement. Build machine-learning workflows with human review, user interfaces for operations and analytics, APIs, databases, server-side logic, and browser applications. Engage directly with business clients to define requirements, make product tradeoffs, launch new product areas, and support rollouts. The role requires startup experience, production LLM feature delivery, and a hybrid schedule with four days per week in the San Francisco office.

Build and evolve ngrok’s AI Gateway, including real-time AI traffic handling, policy enforcement, rate limits, usage caps, access rules, token tracking, observability, and explainability. Design customer-focused gateway abstractions and collaborate with Gateway, Customer Data, Platform, product, and design teams to align enforcement, usage, and billing signals. The role involves full-stack development using primarily Go and TypeScript in a production AWS, Kubernetes, and distributed-systems environment.

Build and operate scalable Ruby on Rails APIs and React interfaces for data activation. Responsibilities include API design, performance and reliability improvements, automated testing, production troubleshooting, documentation, architecture discussions, incident response, and cross-functional collaboration. The role requires secure, maintainable software development and responsible use of AI-assisted tools, with opportunities to establish API standards and mentor engineers.

Build and ship end-to-end full-stack products combining frontend, backend, and LLM orchestration. Develop AI-powered workflows, rapidly prototype customer solutions, and scale platform security, observability, and performance for enterprise use. Collaborate directly with customers and subject matter experts, contribute to product strategy, and mentor engineers while establishing technical best practices in a fast-growing founding team.

Build and ship full-stack web and mobile experiences across Affirm’s consumer products. Break down projects, collaborate with product, design, and analytics teams, develop scalable APIs, write well-tested code, monitor service health, participate in on-call support, review code, and contribute to engineering growth and interviewing.

Build and maintain production-grade full-stack healthcare software using React, TypeScript, Python, FastAPI, GraphQL, and relational databases. Own features end-to-end across backend APIs, frontend interfaces, authentication, patient/provider workflows, integrations, testing, security, and search capabilities. Collaborate with product, design, and engineering teams to deliver reliable, user-friendly clinical solutions.

Own end-to-end software projects for Hinge Health’s visit and scheduling platform. Build booking, encounter, visit-history, and after-visit-summary experiences across mobile, web, and backend services. Scale integrations, support new specialties, define SLOs, manage safe launches, respond to incidents, protect healthcare data, write design documents, review code, and mentor engineers.

Develop and deploy scalable full-stack healthcare applications using Go, TypeScript, Angular, and AWS. Responsibilities include technical design, coding, automated unit/integration/end-to-end testing, code reviews, troubleshooting, agile ceremonies, mentorship, architecture improvements, and occasional on-call support. The role contributes technical leadership across frontend and backend systems while collaborating with Scrum teams and cross-functional partners.

Build and operate a new full-stack payment and expense management platform from architecture through production. Develop backend services, APIs, data models, web and mobile capabilities, and partner integrations. Establish secure engineering, testing, observability, and production-readiness practices. Collaborate with product, design, security, and distributed engineering teams; review code, resolve complex issues, manage technical risks, mentor engineers, and own technical outcomes through continuous improvement.

Build and maintain customer-facing and internal web applications from development through production. Develop scalable Python/FastAPI back ends, TypeScript/React front ends, and AWS infrastructure. Own product quality, reliability, maintenance, and user support while collaborating with clients and internal teams on technical solutions. Lead projects independently and apply AI tools to improve engineering productivity and create AI-powered software.