Top Backend Engineer Jobs in San Francisco, CA

Lead the architecture and delivery of Patreon's large-scale live video platform, covering ingest, transcoding, packaging, delivery, playback, backend services, and APIs. Improve latency, quality, reliability, observability, and scalability across web and mobile. Evaluate video vendors, operate cloud-native systems, manage incidents and capacity planning, shape the technical roadmap, and mentor engineers.

Design, build, and improve scalable backend systems, REST APIs, microservices, data-processing systems, and distributed job platforms. Write secure, maintainable, high-performance code; practice test-driven development; debug production issues; improve engineering standards and tooling; and participate in on-call rotations. The role requires designing highly available systems, building backend APIs, working with relational databases, and applying security best practices.

Build and improve scalable backend systems, including REST APIs, microservices, data processing, and distributed task systems. Develop secure, maintainable code; contribute to product and engineering improvements; practice test-driven development; debug production issues; participate in on-call rotations; and apply security and data-protection best practices.

Design, build, and improve scalable backend systems, REST APIs, microservices, data processing pipelines, and distributed task systems. Write secure, maintainable code, contribute to product and engineering improvements, practice test-driven development, debug production issues, participate in on-call rotations, and apply security best practices including OWASP Top 10 techniques.

Design and evolve high-scale backend capabilities for GitLab’s container registry. Drive architecture, performance, reliability, security, APIs, testing, and operational readiness. Mentor engineers, influence technical direction, participate in incident response, and collaborate asynchronously across product, infrastructure, data, frontend, and security teams. Integrate and evaluate agentic AI systems in production engineering workflows while promoting responsible and effective use.

Develop and enhance backend systems, services, APIs, and core product features. Improve codebase maintainability, reliability, and scalability while operating mission-critical systems in production. Participate in on-call incident resolution, automated monitoring and instrumentation, recruiting, interviewing, and mentoring. The role emphasizes distributed systems, automated testing, continuous integration, and measurable business impact.

Build and maintain backend services powering Pump’s cloud cost optimization platform. Design and scope product features, improve internal tools and CI/CD workflows, participate in code reviews, and ensure reliability, performance, and maintainability. Collaborate with engineers, designers, founders, and other teams to solve customer problems. This is a fully in-office role requiring five days per week on site.

Lead architecture, development, and operation of globally scaled payments and billing systems. Own subscription billing, payment providers, invoicing, reconciliation, security, compliance, reliability, and modernization. Use and advance AI-agent workflows for engineering, incident response, testing, and anomaly detection while enforcing strict human review and PCI safeguards. Mentor engineers, guide technical strategy, and collaborate with Product, Finance, Risk, Platform, and Analytics.

Lead backend engineering for AI platform components, designing scalable services for enterprise and on-premises deployments. Own systems from architecture through production release, guide and develop engineers, manage priorities, and support customer rollouts. The role requires Python and TypeScript expertise, container orchestration and packaging experience, end-to-end product delivery, people leadership, and a computer science or related STEM degree.

Design and implement backend APIs, microservices, and checkout platform components for Affirm’s financial products. Own system health, improve performance and reliability, collaborate across engineering teams, and contribute to technical standards, tooling, and processes. The role requires developing, testing, and shipping high-quality software at scale while making customer-centric technical decisions.

Own and improve a production Python/Django backend and infrastructure for a 3D AI platform. Responsibilities include developing backend features, administering Linux servers, managing PostgreSQL and its migration to Neon, maintaining background jobs and integrations, troubleshooting incidents, improving performance and security, and ensuring reliable monitoring, backups, testing, and deployments.

Architect and build high-scale backend systems for payments, fraud detection, compliance, and user management. Lead cross-domain architecture decisions, optimize distributed microservices for reliability and performance, mentor engineers, establish engineering standards, and collaborate with product and compliance teams. The role requires expertise in Python, databases, cloud infrastructure, distributed systems, event-driven architectures, system design, and financial integrations.

Build and maintain payments infrastructure, including usage tracking, pricing, billing, payment providers, and stream-processing services. Collaborate with Finance, Tax, Growth, Sales, and engineering teams to support compliance, reporting, experiments, and customer payments. Plan migrations, debug complex production billing issues, and safely evolve live systems handling money. Requires Python expertise, backend development experience, software and system design knowledge, testing and security fundamentals, and strong problem-solving ability.

Build and operate core platform systems for users, workspaces, permissions, APIs, authentication, and resource management. Deliver full-stack features with a backend focus, including admin and settings interfaces. Scope work within large existing systems, plan migrations, manage safe rollouts, debug production issues, and collaborate across product and engineering teams. Candidates need strong Python and backend development expertise, software and system design knowledge, testing and security fundamentals, and the ability to navigate ambiguity.

Build and operate distributed cloud backend services powering AI connections, collaboration, authentication, billing, telemetry, and developer workflows. Responsibilities include designing APIs and data models, writing Rust services, managing cloud infrastructure, leading projects, resolving production issues, participating in on-call, and guiding technical decisions across the team.

Own a greenfield workflow for distributing Studio video projects across languages and aspect ratios. Design complex data-heavy backend systems, define requirements through RFCs, pressure-test data structures, and lead projects from inception through launch with minimal supervision. The role requires product judgment, enterprise-grade usage and account reporting expertise, and backend generalist capabilities. Media or video-processing pipeline experience is a bonus.

Build and maintain backend application features, APIs, integrations, data models, background jobs, and production systems. Improve performance, reliability, monitoring, recovery, and infrastructure across AWS and Terraform. Collaborate with product and frontend engineers, review code, mentor teammates, investigate incidents, and support safe releases and operational excellence.

Design, develop, test, and maintain backend services and APIs for secure fintech and crypto products. Work with Azure for deployment and scalability, optimize systems for large data volumes, resolve defects, contribute to architecture and code reviews, and apply secure software development practices. Collaborate with distributed Engineering and Product teams while building payment and transfer infrastructure.

Develop backend infrastructure, data pipelines, web services, and fleet-management systems for autonomous industrial robots. Responsibilities include designing data stores for video and training data, supporting machine-learning compute clusters, maintaining customer-facing services, and diagnosing network issues. The role partners with machine learning, robot control, and DevOps teams and requires Python, distributed systems, databases, Linux, networking, and scalable data-processing experience.

Senior Backend JavaScript Developer role based in San Francisco. The posting provides no substantive details about responsibilities or requirements.

Lead the architecture, design, development, and deployment of scalable backend systems for Scout Motors’ digital products. Build identity, access, and profile services supporting web, mobile, and vehicle applications; collaborate with cross-functional stakeholders; ensure reliability, testing, documentation, and 24/7 service ownership. Mentor engineers, evaluate emerging technologies, and deliver complex technical initiatives in a collaborative environment.

Build and operate scalable backend and distributed systems for Baseten’s AI inference platform. Responsibilities include telemetry pipelines, observability platforms, billing and commercialization systems, partnership integrations, developer tooling, CI/CD, AI agent infrastructure, testing strategy, reliability improvements, and cross-team technical leadership. The role also involves mentoring engineers, improving developer experience, and partnering across infrastructure, model performance, and product teams.

Design, build, and operate a cloud-native, real-time, highly available backend platform for data-center and grid integrations. Implement time-series storage, streaming/event processing, APIs, CI/CD, containerized deployments, and production observability while ensuring safe continuous deployment and cross-disciplinary collaboration.

Build and scale secure, reliable backend services and web applications for a fintech wealth management platform. Responsibilities include identity and access management, AWS infrastructure, database optimization, API and distributed-systems hardening, production reliability, observability, incident response, and security remediation. The role independently delivers solutions from design through production, mentors engineers, and partners with security leadership. This is a hybrid position requiring three office days weekly in San Francisco.

Build and operate backend services, APIs, data models, and asynchronous workflows supporting accounting, reconciliation, and financial data synchronization. Ensure transaction data is accurate, traceable, reliable, and resilient across systems. Own complex projects from design through production, collaborate with product and engineering partners, investigate cross-service issues, and improve system reliability. Contribute through design reviews, code reviews, mentorship, and thoughtful technical decision-making.