Top Full-Stack Engineer Jobs in Los Angeles, CA

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.

The Full-Stack Engineer will build and maintain applications, own features end-to-end, contribute to system design, and collaborate closely with product and design teams while improving system reliability and performance.

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

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, configure, and maintain the Apex Operating System using Palantir Foundry. Perform data integrations, profile and analyze disparate datasets, support day-to-day Foundry operations (including security/setup), document processes, plan project tasks, and recommend solutions to business teams across supply chain, production, engineering, finance, legal, and sales.

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.

As a Founding Full-Stack Engineer, you'll build AI-native systems, integrating LLMs, prototyping quickly, and collaborating to influence engineering standards and culture.

Design, build, test, deploy, and support full-stack applications and integrations for AEC workflows. Develop API-first back ends, modern React/TypeScript front ends, Azure-hosted solutions, CI/CD pipelines, and observability. Partner with stakeholders, implement secure development practices, support production services, use AI-assisted tools responsibly, and mentor other developers.

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 will build and deliver features, design data models, collaborate with teams, and enhance CI/CD processes to improve logistics decisions for national security missions.

The Full Stack Developer will perform software application development, focusing on enterprise-wide data inventory, collaborate across teams, develop integrated solutions, and ensure application security as part of AGILE methodologies.

Senior fullstack engineer to build and scale Brigit's consumer finance platform. Own end-to-end features across frontend (React/React Native/TypeScript) and backend (Java/REST/SQL), optimize database and APIs for high scale, integrate 3rd-party services, implement risk and transaction algorithms, improve CI/CD, testing, monitoring, and internal tooling to support millions of users.

Build and scale consumer-facing mobile and web applications and backend services. Own features end-to-end across frontend and backend, optimize databases and queries, integrate third-party APIs, implement algorithms for risk and transaction evaluation, improve reliability and CI/CD, and contribute to testing, monitoring, and internal tools to support customer operations.

Build and maintain frontend and backend platform components for AI infrastructure using Python and TypeScript. Support and develop the open-source SDK, create APIs and UIs, collaborate with engineering and AI teams, write tests, and follow CI best practices. Participate in code reviews, mentorship, and continuous learning to improve platform scalability and developer experience.

Design and implement full‑stack, low‑latency web-based Ground Control Station and C2 systems (map-centric UIs, real-time telemetry, video streaming), lead architecture and APIs, mentor engineers, support field tests and mission deployments, and ensure interoperability with C2 standards.

Design and build agent-powered mission consoles, collaborate with stakeholders to improve user workflows, and maintain agentic workflows for mission outcomes.

As a Senior Software Engineer, you will design and build a cutting-edge identity search platform and implement AI systems for defense applications, working closely with cross-functional teams to enhance user workflows and support national security.

Design, scope, and implement scalable full‑stack ecommerce solutions. Improve platform performance and usability, collaborate with Product and Design, run experiments, ship features, and ensure seamless integration across the product ecosystem.

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.

Responsible for leading a team of engineers, supporting product development, identifying technical issues, and ensuring high-quality code delivery in backend systems at scale.

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

The role involves leading application performance improvements across multiple platforms, focusing on measurable metrics and driving engineering standards and workflow optimization, using both hands-on coding and strategic influence.