Top Backend Engineer Jobs in Los Angeles, CA

As a Backend Engineer, you'll improve Git and Gitaly by contributing features, bug fixes, and performance improvements, collaborating with the open source community, and participating in architectural discussions.

Design, build, and maintain backend services powering Clerkie's platform. Improve reliability, performance, scalability, observability, and support feature development. Participate in technical design, cross-functional collaboration, documentation, and own projects end-to-end in a fast-moving startup environment.

As a Staff Backend Engineer, you'll design and operate backend services, lead technical initiatives, ensure reliability, and mentor team members in a remote-first setup.

As a Staff Engineer for Revenue, you'll shape technical vision and architecture for billing and pricing systems, ensuring correctness while enhancing cross-team collaboration.

Design, implement, and operate critical, highly scalable backend services (identity, friend graph, persistence). Collaborate across teams, ensure availability, scalability, operational excellence, and cost management. Build, test, debug, and participate in incident resolution while leveraging AI tools to accelerate development and maintain secure, production-ready code.

As an Engineer II for Backend APIs, you'll design, develop, and test APIs for the Reporting & Insights team, collaborating closely with product and engineering teams. Your role involves ensuring high code quality, ownership of services in production, and leveraging AI tools in development.

Design, implement, and operate scalable ads delivery backend services. Own serving-time systems, collaborate with Product/ML/Infra, ensure availability and efficiency, use observability and automation, and apply AI-assisted workflows to ship production-quality code and optimize platform architecture.

Design, implement, and operate critical, highly scalable backend services (identity, friend graph, persistence). Collaborate across teams, build and test distributed systems, ensure availability and operational excellence, use AI tools to accelerate development, and participate in incident response and debugging.

Seeking a backend developer and DevOps hybrid to build tech infrastructure for the Dreamwave events platform, focusing on Node.js and GCP services.

Lead and mentor engineering teams to design, build, and scale backend services, web applications, and data pipelines. Solve complex cross‑persona problems, implement performant ELT/data integrations, and perform data analysis to investigate and resolve issues, driving engineering best practices and customer‑centric solutions.

Design, build, and maintain scalable backend services and APIs using Node.js, TypeScript, and Postgres. Architect systems for high performance, implement third-party integrations, develop internal fulfillment and ML tools, set backend engineering standards, mentor engineers, and collaborate with product, data, and frontend teams while ensuring security, documentation, and testing.

Design, build, and operate scalable data pipelines and BI/reporting layers; own data architecture and integrations (IoT, vendor APIs, business systems); contribute to Node.js backend services, AWS infrastructure, CI/CD, and AI-assisted tooling to support analytics, operations, and enterprise integrations.

As a backend engineer, you will enhance data collection systems to ensure reliability and scalability, working closely with engineering and mission teams.

The role involves designing and expanding backend systems, mentoring engineers, and executing technical strategies to modernize architecture and improve system performance.

The role involves owning the architecture and technical direction of Payment Rails infrastructure, designing high-reliability systems for global payment processing, and leading cross-functional collaborations to create efficient, compliant solutions. Responsibilities also include mentoring team members and enhancing operational excellence through AI-driven improvements.

Lead architecture and technical direction for Payments platform, building scalable, fault-tolerant distributed systems, defining roadmaps, ownership of production reliability, cross-functional partnership, and mentoring engineers to improve platform quality and scalability.

As a Staff Backend Engineer, you'll design and build scalable platforms for processing sensor data, define engineering standards, and collaborate on backend system development.

Design, build, and maintain scalable backend services and APIs for commerce workflows using Python/Django. Improve reliability, performance, and observability, operate AWS deployments, work with PostgreSQL and event-driven architectures (SNS/SQS), modernize legacy systems, and support CI/CD, testing, and production troubleshooting.

Senior backend-leaning full-stack engineer to design, build, and ship Rails + Hotwire features end-to-end. Own data modeling, PostgreSQL schema and performance, background job architecture, APIs, and scalability. Collaborate cross-functionally, conduct code reviews, and drive engineering best practices.

You will tackle AI challenges, develop scalable software and collaborate with teams to enhance healthcare navigation using AI solutions.

The Backend Engineer will develop and maintain scalable backend services and APIs for an AI-driven logistics platform while ensuring system reliability, performance, and security. Responsibilities include designing architecture, implementing data pipelines, collaborating with teams, and mentoring new members. The role requires proficiency in backend languages and cloud infrastructure.

Design, build, test, and maintain backend services and APIs powering the insurance platform. Integrate payments, documents, and data providers, improve system stability, performance, and scalability, mentor team members, and participate in architectural decisions and agile ceremonies.

Design and develop backend systems, optimize performance, manage APIs, and lead integration efforts in healthcare software.

As a Senior Backend Engineer at DuckDuckGo, you'll lead backend projects, mentor engineers, and develop AI-enhanced features for the company's privacy-centric product line.

Design and implement secure, scalable backend services for voice agents, integrate AI models and telephony, improve inference, debug concurrent systems, and collaborate with Product to deliver features end-to-end.