Top Backend Engineer Jobs in Los Angeles, CA

The Marketing Backend Developer will build and maintain backend services and APIs for marketing operations, ensuring reliable data flow and system integrations, with a focus on performance and scalability.

Design and implement scalable, secure inference services for speech processing. Optimize networking, audio transcoding, latency, memory, and distributed compute orchestration. Debug complex system issues, customize backend services for customers, and partner with Product to deliver end-to-end features.

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

The Backend Engineer will design and maintain backend systems, contribute to system reliability and performance, and collaborate cross-functionally while taking ownership of projects.

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 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 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.

Design, build, test, and maintain backend services and APIs for an insurance platform. Integrate external services and data providers, improve system stability, performance, and scalability, participate in architecture discussions, mentor teammates, and support internal tooling and deployment practices.

The Staff Back End Engineer will lead engineering practices, analyze problems, build scalable services, and maintain data pipelines. They will also mentor team members and foster communication while delivering impactful solutions.

The role involves leading backend development, collaborating on system design, and ensuring technical excellence while working on healthcare technology solutions.

Build, operate, and extend data platform and application-layer services enabling secure, self-service data applications at scale. Implement provisioning, CI/CD, access control, integrations, observability, automation, and incident response while contributing to semantic layer and AI-ready tooling roadmaps.

Build and maintain scalable integration and end-to-end test automation frameworks, optimize CI pipelines and test execution, improve test stability and reporting, support engineering teams with triage and best practices, write technical specs/ADRs, participate in on-call rotation, and collaborate cross-functionally to evolve the company test strategy.

Design and implement secure, scalable backend services for speech inference and audio processing. Optimize networking, transcoding, latency, memory, and distributed compute orchestration. Measure and improve system performance, debug complex networking/scheduling/HPC issues, customize services for customers, and partner with Product to deliver features end-to-end.

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

The Backend Software Engineer will develop data ingestion pipelines, implement observability tools, and provide technical support while improving team collaboration.

Design and implement Kotlin backend services and end-to-end systems for Toast POS device management. Lead technical designs, estimations, performance optimization, cross-team collaboration, and software quality practices including modern testing and observability. Mentor peers and drive product roadmap alignment with product, hardware, and QA stakeholders.

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.

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.

As a Backend Engineer, you will develop and scale PostHog's billing system to support growth, implement flexible billing models, and ensure accurate financial reporting. You'll focus on automating processes and handling complex data modeling.

Lead architecture, build, and operate a serverless AWS backend (Python, Lambda, CDK, DynamoDB, S3) supporting APIs, event processing, integrations (EHR/CRM/eCommerce/3PL), observability, security, and compliance. Provide technical leadership, drive platform decisions, identify risks and scalability bottlenecks, and establish backend engineering best practices across systems and teams.

As a Backend Engineer, you'll design and maintain APIs for global money management, collaborate with teams, and mentor engineers.

As a Backend Engineer at Drivetrain, you'll tackle challenging backend application problems, focusing on system design, algorithms, and production services while contributing to a cutting-edge technology stack.

The Backend Engineer will develop intricate backend systems, build performant APIs, and contribute to technology innovation at Entefy.

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

Design and build robust backend services and secure APIs for finance and reader applications. Implement authentication, payments, subscriptions, and finance workflows. Design Postgres/Redis schemas, integrate with financial APIs (BSE Star MF, NSE) and DRM services, and ensure compliance-friendly data handling.