Top Full-Stack Engineer Jobs in Los Angeles, CA

Develop and launch scalable full-stack Quora features using Python and React. Collaborate with designers, product managers, engineers, and data scientists to improve user engagement, moderation, creator experiences, and AI-powered content. Use experimentation and data to guide product iterations, contribute across the development lifecycle, and participate in on-call support for reliable service delivery.

Provides hands-on technical leadership across the full stack, designing customer-facing experiences, APIs, services, data flows, and cloud systems. Leads complex cross-functional initiatives, shapes platform architecture, improves engineering standards, performance, reliability, observability, and security, and mentors engineers. Partners with Product, Design, Data Science, and SRE while driving responsible AI adoption and scalable solutions in a distributed global environment.

Designs and ships full-stack features across Angular, PHP/Symfony, Go, and MySQL. Responsibilities include architecture, data modeling, API design, testing, code reviews, technical design leadership, mentoring engineers, AI-assisted development, production support, incident investigation, and systemic improvements. The role is fully remote in the US and collaborates with global engineering teams.

Build Nango’s developer infrastructure platform across backend services, APIs, runtimes, dashboards, SDKs, CLI, MCP, and web applications. Own product surfaces end to end, work directly with customers, shape product and technical roadmaps, design reliable systems, and maintain open-source projects. The role requires strong backend fundamentals, TypeScript experience across Node.js and React, product ownership, developer empathy, communication, and autonomy in a remote startup environment.

Build and maintain AI-assisted full-stack platforms for manufacturing, spanning AWS infrastructure, Python Lambda services, Java microservices, agentic LLM workflows, and Angular interfaces. Develop event-driven architectures, APIs, retrieval and scoring systems, infrastructure as code, observability, CI/CD, and secure deployment strategies. Apply rigorous testing, specification-driven development, concurrency practices, and production reliability techniques across multi-repository systems. The role requires hands-on software development experience with enterprise server, storage, or networking products.

Build and ship end-to-end production features across APIs, databases, user interfaces, and testing. Work primarily with TypeScript, React, Next.js, NestJS, PostgreSQL, and related technologies. Integrate third-party services, maintain scalable systems, debug production issues, write automated tests, and make architectural improvements. The role requires ownership, proactive communication, independent execution, and effective use of AI coding tools in a remote, async-first team.

Own full-stack features for Techstars OS from data ingestion and APIs through React interfaces and production delivery. Build AI-native search, retrieval, and assistive workflows using founder and portfolio data. Lead migration and retirement of legacy tools, develop data pipelines, improve testing and CI/CD, and provide architectural guidance. The role requires strong autonomy, written communication, and end-to-end ownership across cloud infrastructure and product development.

Design, build, and optimize scalable cloud and web software with focus on infrastructure, performance, and hardware integration for IoT devices. Collaborate with hardware teams to ensure connectivity and high availability, implement new features, and improve system efficiency.

Develop, enhance, test, deploy, and support full-stack enterprise applications in AWS. Build front-end interfaces, backend services, REST APIs, integrations, and database components. Contribute to architecture and technical design, troubleshoot complex production issues, participate in code reviews, and support automated testing, CI/CD, Agile planning, and deployment activities. Collaborate with Product, QA, Cloud/DevOps, and engineering teams while following secure coding and software development standards.

Senior Full Stack Engineer responsible for taking over an existing software project, completing unfinished features, resolving bugs, improving frontend and backend systems, integrating APIs and databases, refactoring for reliability and scalability, and preparing the application for production. The role requires independent ownership, strong debugging and software development skills, collaboration with stakeholders, automated testing, deployment workflows, and clear technical documentation.

Build backend services, APIs, integrations, relational data models, and TypeScript frontend features. Partner with product teams to define technical criteria, model evolving business domains, and deliver end-to-end functionality. Help scale AI-native engineering through shared agentic AI workflows, development tooling, and CI/CD integration. The role requires production experience with Ruby, Node.js/TypeScript, or Python; cloud platforms such as AWS; API design; strong data fundamentals; and fluent English communication.

Build and evolve scalable full-stack systems for People Data Labs’ APIs, self-serve products, and customer success tools. Responsibilities include designing frontend and backend architecture, developing React and Python applications, ensuring data integrity, implementing reliable APIs, optimizing performance, operating production services, collaborating with stakeholders, writing technical designs, mentoring engineers, and improving development practices.

Develops and supports responsive full stack web applications throughout the software development lifecycle. Responsibilities include analyzing business and technical challenges, configuring and tuning applications, designing maintainable solutions, adopting new technologies, and collaborating with integration, QA, operations, and business teams. The role requires software development experience, familiarity with Agile Scrum, cloud technology exposure, and participation in requirements, coding, debugging, testing, release, and operational support activities.

Build and maintain full-stack features for a security infrastructure platform, expand PKI, PAM, and KMS products, work directly with enterprise customers, and explore AI applications in secrets management. The role requires strong JavaScript ecosystem expertise, particularly React, Node.js, and TypeScript, with optional Go and developer tools experience. This is a primarily remote role requiring work during US hours.

Build, optimize, and expand Infisical’s open source security infrastructure platform. Develop product features, work directly with enterprise customers, expand PKI, PAM, and KMS offerings, and explore AI applications in secrets management and security infrastructure. The role requires deep JavaScript ecosystem expertise, particularly React.js, Node.js, and TypeScript, with Go, DevOps, developer tools, and open source experience beneficial.

Join as the founding full-stack engineer to extend a TypeScript React/Next.js prototype, design product features, integrate AI/OCR, write tests and infrastructure, talk to users, and iterate quickly to drive growth.

Build, test, review, deploy, monitor, debug, and maintain full-stack software used in K-12 classrooms. Work primarily with React, TypeScript, Node.js, and AWS while improving complex codebases and service design. Participate in incident response, refactoring, code reviews, pairing, mentorship, and cross-functional collaboration with product, design, and education experts. Use AI tools thoughtfully and prioritize reliable, accessible, and equitable learning experiences.

Build and ship full-stack, AI-powered analytics features for large datasets. Develop user-facing experiences, prototype and validate LLM- and agent-powered workflows, integrate agents with tools such as Slack and alerting systems, and collaborate with data teams. Own solutions end to end, ensuring they are scalable, maintainable, production-ready, and aligned with user needs. Use cloud-native technologies and observability tools while iterating rapidly based on user feedback.

Work on real-world web applications across frontend and backend. Use modern frontend frameworks (React/Angular/Vue) and backend tech (Node.js, Python, Java, PHP). Integrate RESTful APIs with databases (MongoDB, PostgreSQL, MySQL), debug, test, optimize performance, and collaborate with designers and product teams while gaining hands-on mentorship.

Build and maintain enterprise workforce management software for forecasting, staffing, scheduling, adherence, reporting, and optimization. Develop Java and Spring Boot microservices, React and TypeScript applications, REST APIs, event-driven integrations, PostgreSQL data models, cloud-native deployments, and CI/CD pipelines. Integrate WFM capabilities with contact center, HR, payroll, identity, and data platforms. Troubleshoot production systems, improve scalability and reliability, and collaborate with product, QA, DevOps, UX, and client stakeholders.

Build and maintain enterprise workforce management software for forecasting, scheduling, adherence, intraday management, and reporting. Develop Java and Spring Boot microservices, React and TypeScript applications, REST APIs, event-driven workflows, integrations, and PostgreSQL data models. Support cloud-native deployments, CI/CD, testing, performance optimization, production troubleshooting, architecture discussions, and client-facing collaboration.

Build enterprise-scale workforce management software covering forecasting, capacity planning, scheduling, adherence, intraday management, and operational reporting. Develop Java and Spring Boot microservices, React and TypeScript applications, REST APIs, event-driven workflows, integrations, and PostgreSQL data models. Contribute to cloud-native deployments, CI/CD, testing, performance optimization, architecture, production support, and client-facing technical collaboration.

Lead hands-on development and operation of billing, usage, rates, and marketplace systems. Build primarily in Go while contributing to TypeScript and React applications, Kubernetes infrastructure, databases, CI/CD, and cloud services. Improve reliability, automation, observability, auditability, and production recovery. Deliver projects end to end, investigate incidents, participate in on-call, collaborate across teams, and provide technical leadership through design, reviews, mentoring, and operational improvements.

Build and own ElevenMusic features end to end across frontend and backend, from identifying user problems through rapid product launches. Work autonomously with research engineering to apply AI capabilities to music creation, remixing, listening, and streaming. Evaluate system quality, security, and complexity; make strong product decisions; and ship consumer experiences to a large audience. Interest in music and creators is important, with recommendation systems, embeddings, audio products, and open-source experience beneficial.

Build and operate production APIs and backend systems for music and audio AI products. Partner with research engineering to productionize model improvements, design systems that support future model upgrades, and develop creator-facing features. Engineers own product decomposition, legal and safety considerations, launch planning, and collaboration with growth, design, and enterprise customers. The role is remote-first across Europe or the US East Coast, with Central European timezone availability required.