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

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.

The Senior Fullstack Engineer will build and manage enterprise authentication systems, improve user session management, ensure security compliance, and support internal API usage across services, while enhancing performance and reliability.

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 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 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.

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.

As a Full Stack Engineer at Deepnote, you'll develop and enhance features across the tech stack, support community engagement, and tackle complex engineering challenges.

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

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.

Lead design and delivery of provider-facing backend services and frontend applications. Own features end-to-end, mentor engineers, build React/TypeScript interfaces, design DRF REST APIs and database schemas, use LLM tooling (Claude) to accelerate development, and operate services on Kubernetes/GCP with Datadog for monitoring.

The Senior Full-Stack Developer will manage architecture and delivery for a web application, integrating historical data into SAP S/4HANA. Responsibilities include overseeing development, integrating cloud identity, and leading architectural documentation.

Develop consumer-centric web applications, enhance usability, collaborate with designers, implement backend software and APIs, write tested code, and follow agile development cycles.

As a Senior Full-Stack Engineer, lead design and development of complex search features, optimize development processes with AI tools, and mentor juniors in a collaborative environment.

The Senior Full-Stack Engineer will design, implement, and maintain systems for Trading API customers, focusing on both frontend and backend development, while leading projects and mentoring peers.

The Senior Full Stack Engineer will design, build, and scale healthcare integrations, ensuring high security and quality, while collaborating with cross-functional teams and supporting enterprise-level integrations.

Design, build, and scale integrations for healthcare applications, ensuring security and quality while collaborating with cross-functional teams.

Build and maintain user-facing interactive features and backend APIs. Own architecture, write well-tested code, participate in reviews and standups, ensure production reliability, and create development and deployment standards.

Build and ship complex consumer-facing full stack applications. Work on React/TypeScript frontends (offline PWAs using IndexedDB/DexieJS and Workbox) and Scala/Play backends with PostgreSQL. Deploy on AWS via Kubernetes. Mentor engineers, collaborate in product-focused cycles, and thrive in a fast-moving startup environment.

Design and build features across a React/TypeScript frontend and Go backend for real-time dispatch systems. Implement WebSocket-driven tracking, GIS integrations, multi-tenant architectures, performance and state management improvements, production debugging, and collaborate with Product and Operations to deliver agency commitments.

Senior CRM systems full stack engineer to design, develop, integrate, and maintain Salesforce and Salesforce Marketing Cloud solutions. Build ETL pipelines, AWS microservices, and integrations, provide tier-3 support, lead testing/UAT, document requirements, and train teams while ensuring code quality and deployment processes.

Build and maintain scalable full-stack features for a fintech SaaS platform. Implement React front-ends and Node.js/NestJS back-end APIs, troubleshoot production systems (databases, queues, caches, microservices), write tests and clean code, collaborate with product and design, participate in code reviews, and prioritize technical debt while scaling the user base.

Design, develop, and maintain full-stack web applications using Java/Spring Boot backends and Angular frontends. Build RESTful APIs, write clean code, collaborate with cross-functional teams, troubleshoot issues, and participate across the SDLC.

Design, develop, and maintain web applications and RESTful APIs using Java/Spring Boot. Develop and maintain PL/SQL stored procedures and Oracle database logic. Participate across the SDLC, troubleshoot backend and database issues, collaborate with cross-functional teams, and improve development processes and tooling.

Lead consolidation and modernization of two legacy giving marketplace applications into a single scalable stack. Re-architect, refactor, and optimize back end (Java, Spring Boot, Hibernate) and front end (Angular, NgRx, SCSS). Implement features, ensure UI/UX feasibility, address performance and scalability, conduct code reviews, and collaborate with the team to deliver a robust application.