Top Full-Stack Engineer Jobs in Los Angeles, CA

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.

Build and ship scalable mobile and desktop web applications; implement user-facing features and UI components; optimize performance and browser rendering; contribute to shared libraries and microservices; log and analyze metrics; leverage AI tools while maintaining secure, production-ready code quality.

Design, implement, and optimize full-stack web and mobile applications. Build user interfaces, contribute to shared libraries, log and analyze metrics, and ship scalable, production-ready services while leveraging AI tools and maintaining high standards for code correctness, security, and performance.

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.

Design, implement, and optimize full-stack web and mobile web applications. Build UI components, ensure performance and test coverage, work on shared libraries and scalable services, log and analyze metrics, and leverage AI tools to accelerate high-quality engineering delivery.

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.

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.

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.

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 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.

Build and maintain scalable applications, APIs, and services for millions of users. Deliver customer-facing features from concept to production, collaborate with product and design, pair with teammates, follow engineering best practices, and work across backend services and React-based web applications.

As a Fullstack Software Engineer, you'll design, develop, and maintain scalable frontend and backend systems while collaborating across teams.

Build end-to-end AI integrations in a cybersecurity platform: gather contextual security data, call and optimize AI services, map responses to actionable UI (React), implement error/fallback handling, monitoring, caching, and user feedback loops while working directly with customers.

Build end-to-end features across backend (Go) and frontend (React/TypeScript), design and implement APIs, map complex data to clear UIs, optimize performance, implement robust error handling, monitor feature usage, and iterate with customers and design partners.

Lead and deliver software solutions, oversee full-stack architecture, mentor engineers, and drive cross-functional initiatives for spacecraft modeling and control platforms.

Fullstack engineers will develop frontend applications and contribute to the backend, focusing on UI/UX and geospatial functionalities.

As a Senior WordPress Full Stack Engineer, you will maintain and extend WordPress and ReactJS platforms, implement API integrations, collaborate with designers for UI/UX, and participate in code reviews to ensure quality and scalability.

The Staff/Principal Full Stack Engineer will design and build core web applications, backend services, and integrate AI capabilities for healthcare-focused operational tools.

The Full-stack Engineer will build and own features for Hercules' AI-driven applications, including the AI Agent and App Builder, focusing on clean code, SaaS functionalities, and system design within a team-centric environment.