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

Build and own complex frontend features using Vue 3 and TypeScript while developing the Python services and APIs that power them. Improve performance, accessibility, testing, CI/CD, and observability; collaborate with product and design; mentor engineers and apply AI-assisted development tools responsibly to accelerate productivity and maintain quality and security.

Design and implement scalable backend services for payment and transaction workflows using Java. Own end-to-end features from data model and APIs to Angular frontends, improve reliability and performance, refactor legacy systems, troubleshoot production issues, and collaborate with product and design. Leverage AI-assisted development tools responsibly and share best practices across the team.

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.

Lead design and build of an AI-native marketing platform: integrations, multi-agent orchestration, UIs, tooling, analytics, CI/CD, auth/multi-tenancy, and production AI agents to automate marketing workflows and drive adoption across teams.

Build and ship full-stack features for customer-facing Console and Playground, plus internal tools. Design and maintain APIs and backend services, implement accessible performant frontends, translate product requirements into incremental work, and improve code quality through reviews and design discussions.

As a Sr. Full Stack Engineer, you'll develop features across the stack, improve platform performance, and collaborate closely with design and product teams.

Owner of end-to-end ecommerce features: design, implement, and maintain scalable backend services and performant React/Next.js frontends. Integrate payment gateways and procurement systems (PunchOut), mentor engineers, uphold code quality, and improve platform stability across Node.js, MySQL, and MongoDB.

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.

Build end-to-end features and new products for a creator-focused marketing platform. Work across frontend and backend, collaborate with design and users, make architectural decisions, and establish engineering standards, tooling, and processes for a growing team.

Lead full‑stack design and delivery of customer-facing web experiences (Browse, Navigate, Preview). Own architecture, APIs, data models, rollouts, observability, on‑call readiness, and cross-team alignment, using approved AI-assisted workflows while ensuring technical quality and reliability.

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

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.

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.

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.

Design, build, and maintain production-grade .NET web applications and APIs on Azure. Own full-stack delivery from data models and SQL to front-end components, CI/CD, testing, and architecture. Collaborate with product and delivery teams, participate in code reviews, and ensure secure, observable, well-tested services.

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.

Senior individual contributor (15+ years) building a greenfield platform. Hands-on full-stack development with .NET/C# backend, Angular frontend, and Azure cloud architecture. Design and implement microservices, APIs, and messaging (Service Bus). Own end-to-end lifecycle from requirements to deployment using CI/CD, GitHub Actions, Terraform, PowerShell, and Azure CLI. Must have practical AI experience embedding tools (Copilot, Claude), agent frameworks, RAG, and AI-driven features within development workflows.

Build and maintain end-to-end features across frontend (React/TypeScript) and backend (Python/FastAPI), design and consume RESTful APIs, write well-tested code, collaborate with product and customers, and iterate quickly based on feedback to support hospital supply chain workflows.

Lead the development of Coperniq's platform by designing, developing, and maintaining scalable full-stack solutions while collaborating with teams and mentoring juniors.

Build and evolve AssetWatch's industrial IoT SaaS platform across frontend, backend, and APIs using TypeScript, React, Node.js, and AWS serverless. Own features from design to production, improve scalability, reliability, and cost efficiency, support incidents and CI/CD, write technical design artifacts, mentor engineers, and responsibly leverage AI-assisted development tools with human review and testing.

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.