Top Full-Stack Engineer Jobs in Los Angeles, CA

Build and own end-to-end full-stack features across backend services and user-facing applications. Contribute to system design, reliability, performance, observability, and engineering practices while collaborating with product and design.

Lead design, build, and deploy full-stack software for DoD/IC missions. Rapidly prototype MVPs, integrate systems and APIs, deliver high-performance frontends, collaborate with users, and deploy/test in secure operational environments.

Modernize a large fintech platform by building NestJS services and Next.js UIs, migrate transactional data to relational schemas, write comprehensive tests, identify and fix legacy problems, design scalable solutions that coexist with legacy systems, and use AI tooling responsibly to increase engineering velocity.

Build and own backend infrastructure connecting robotics, ML inference, data platform, and digital twin. Develop APIs, CRUD services, frontend visualizations, and deploy software to edge and cloud. Integrate with robotics software, support real-time monitoring, and create internal tooling for observability and developer productivity.

Own and build backend software connecting robotics, ML inference, data platform, and digital twin. Develop APIs, user-facing apps, CRUD services, and visualization. Deploy and maintain software on edge and cloud, integrate with ROS, and collaborate with robotics, data, ML, and infrastructure teams to improve observability and developer tooling.

Design, implement, and iterate full-stack applications and services for an automated rocket factory platform. Build tools for planning, scheduling, data access/analysis, and operations; collaborate with non-software stakeholders; follow agile practices, CI/CD, and mentor other engineers.

Build and maintain full-stack applications for factory and launch operations. Design, implement, and deploy enterprise tools and data systems, collaborate with stakeholders, follow agile CI/CD practices, mentor engineers, and iterate on scalable solutions across cloud and on-prem infrastructure.

Design, build, and optimize full-stack mobile and desktop web applications. Implement user interfaces, contribute to shared libraries, log and analyze metrics, use AI tools to accelerate development, and maintain high standards for code correctness, security, testing, performance, and scalability.

Design, implement, and optimize full‑stack web and mobile applications. Ship scalable, production‑ready features and UI components, improve performance and reliability, contribute to shared libraries, and use AI tools and metrics to inform development.

Design and deliver end-to-end full stack healthcare applications across UI, API, and data layers. Build secure, testable, cloud-native services, implement integrations and IaC, support CI/CD and monitoring, leverage AI-assisted tools, and mentor engineers while partnering with cross-functional teams.

Design, develop, and deploy secure cloud-native applications on Azure. Build and maintain CI/CD pipelines, infrastructure-as-code, automated testing, and monitoring. Implement DevSecOps practices, support high-volume APIs and integrations, and collaborate with cross-functional teams to ensure scalable, production-ready solutions.

Lead design and delivery of scalable, secure full‑stack features and services. Build maintainable front-end and backend code, implement integrations and data models, enable cloud-native CI/CD workflows, use containers and IaC, and act as a technical leader influencing architecture and delivery across teams while leveraging AI-assisted tools.

Lead technical owner for an AI-focused incubation to build zero-to-one consumer dating products. Design and implement end-to-end frontend and backend experiences, AI-powered systems, cloud infrastructure, instrumentation, and analytics. Partner with product, design, and research to iterate prototypes, pilots, and production features while ensuring reliability, privacy, security, and scalability.

Build and maintain Apex's business systems platform in Palantir Foundry: configure systems, manage security and updates, integrate data sources, support daily operations, document processes, plan projects, and recommend remediations to meet business needs.

Own and ship full-stack features across frontend, backend, and data layers. Extend a Brand Knowledge Graph in Neo4j, build predictive optimization and measurement systems, design LLM orchestration and AI integrations to minimize calls, and deliver client-facing demos and QA. Translate complex data and models into actionable insights and maintain integrations and tracking infrastructure.

As a Fullstack Engineer, you'll design, build, and operate web applications, collaborating with product teams and mentoring peers while ensuring best practices in coding and system architecture.

Full-Stack Engineer responsible for developing and maintaining front-end and back-end components, collaborating on product solutions, and improving user interfaces.

The Full Stack Engineer will develop scalable back-end systems, design RESTful APIs, manage databases, and ensure front-end integration, focusing on a creator-centric platform.

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.

As a Junior Full Stack Engineer, you will contribute to feature development, implement UI components, support backend endpoints, and improve performance while learning from senior engineers.

Build and maintain frontend and backend platform components using Python and TypeScript, support the open-source SDK, collaborate with engineering and AI teams, write tests and CI-friendly code, fix bugs, and participate in code reviews and mentorship.

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.

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.

The Senior Software Engineer will design, develop, and optimize scalable PHP APIs and web applications, collaborating with product and design teams to support product development and implement best coding practices.

Support full‑stack development: write high‑quality, well‑tested code, build and improve component library, propose prototypes, collaborate with QA and cross‑functional stakeholders.