Top Senior Full-Stack Engineer Jobs in Los Angeles, CA

Responsible for developing and enhancing an AI-powered platform for youth sports mentorship through full-stack engineering, integrating AI features, and collaborating with cross-functional teams.

Work across the full stack to design and deploy features using Next.js and AWS (ECS/ECR/Lambda). Build and maintain web scraping pipelines and high-volume data systems (Postgres, ClickHouse, MongoDB). Own production reliability, debug at scale, and contribute to the technical roadmap.

As a Senior Full Stack Engineer, you'll design and develop Pearpop's platform, build APIs, optimize applications, and lead technical projects while mentoring junior engineers.

Build and own data-driven dashboards and backend services for DeFi risk analysis. Develop React frontends, GraphQL APIs, and cloud-native data pipelines. Collaborate with research and protocol teams, mentor junior engineers, drive architectural improvements to the Alert Portal, ensure code quality through testing and reviews, and identify product and technical enhancements.

Design, develop, and maintain web-based UI and REST middleware for federal health IT systems. Participate in Agile/SAFe ceremonies, write design documents, implement features, resolve bugs, and support CI/CD pipelines while collaborating with product, QA, and stakeholders.

The role involves owning the product workflow, building user-facing features, maintaining systems, and collaborating with cross-functional teams. Strong React and Typescript skills are essential.

Design, build, and maintain scalable web applications using Python and React. Collaborate with teams and ensure application security and performance.

The Senior Full-Stack Developer will create software solutions jointly with clients, ensuring high-quality code and effective collaboration with the team.

This role involves designing and developing scalable web applications, leading projects, mentoring engineers, and ensuring quality through best practices and collaboration.

Design, develop, and maintain scalable web applications, mentor junior developers, optimize performance, and ensure best practices in coding.

Develop and maintain the frontend using Vue.js, integrate with Django APIs, ensure application performance, and participate in code reviews for continuous improvement.

Seeking a Senior Fullstack Engineer with frontend focus in React, TypeScript, and Python. Responsibilities include frontend architecture, API building, and leading frontend standards. Requires 5+ years of experience with strong team collaboration.

As a Senior Full Stack Developer at Capnexus, you'll design and build a cloud-native subcontractor pre-qualification platform using AWS, incorporating AI and modern frontend/backend technologies, ensuring seamless integration and deployment.

The Senior Full Stack Engineer will design, build, and maintain web applications, leveraging AI, managing technical debt, and enhancing feature development while collaborating with cross-functional teams.

The Senior Full Stack Engineer will develop scalable web applications using Python and React.js, mentor team members, and enhance system performance while leveraging AI technologies. The role emphasizes collaboration, end-to-end feature ownership, and architectural improvements in a remote setting.

Lead design and implementation of the PSA Liquidity Platform connecting buyers and sellers. Build buyer tooling, matching/ranking engines, and seller experiences. Architect and operate microservices and Kafka-driven systems on Kubernetes/AWS, instrument observability, apply AI tooling across the SDLC, and drive cross-functional delivery from 0-to-1 while owning end-to-end outcomes.

Design, build, and maintain scalable full‑stack web applications using Python (FastAPI/Django/Flask) and Node.js frameworks (Next.js, Nest.js). Build React front ends, architect RESTful APIs, work with SQL/NoSQL databases, implement testing and security best practices, leverage AWS cloud services and AI-assisted development tools, collaborate with product and design, perform code reviews, and mentor junior engineers.

Build developer tooling, documentation, and web experiences for AT Protocol. Develop and operate backend API and identity services, maintain open-source SDKs, support auth and identity management, and ensure production hosting and developer-facing APIs work reliably for third-party builders.

Build and maintain user-facing interactive features and backend APIs. Own architecture, write well-tested code, participate in reviews and standups, ensure production reliability, and create development and deployment standards.

Build and scale full-stack features for mobile web using React and Python; develop AI-native care-team automation; own production reliability and HIPAA-compliant monitoring; set code quality, testing, and deployment standards; and collaborate with product, data, and clinical teams to translate complex healthcare workflows into practical solutions.

Build and operate backend services, APIs, and frontend experiences for the Power Packs product. Work across the full SDLC on backend systems, frontend React/NextJS apps, integrations, observability, and documentation while collaborating with Product and Engineering to deliver scalable, production-quality features.

Build end-to-end features, design intuitive interfaces, manage asynchronous backend jobs, and contribute to open-source efforts, while leading project development from concept to monitoring.

The Senior Full Stack Developer will develop web applications, facilitate Scrum ceremonies, guide agile practices, and drive project goals.

Lead architecture and implementation of consumer-facing features across frontend and backend. Own backend roadmap, design distributed systems, optimize performance and reliability, drive cross-functional delivery, set engineering standards, and mentor teammates while shipping well-tested, scalable features.

Support an agile scrum team to deliver scalable web application features, complete user stories, troubleshoot issues, and mentor developers. Produce technical documentation and architecture-aligned solutions for federal customers while meeting sprint deadlines and compliance requirements.