Top Senior Backend Engineer Jobs in San Francisco, CA

The Senior Backend Engineer will design, build, and scale backend systems for a marketing automation platform, ensuring robust data handling and customer engagement while fostering direct communication with clients.

As a Senior Backend Engineer, you will architect backend features, mentor junior engineers, and enhance systems' performance for multiple web products in a healthtech startup.

Build, enhance, and maintain backend services and REST APIs in Go; develop ETL pipelines in Python; design reliable PostgreSQL-backed APIs; use AWS services (S3, Lambda, Step Functions, Glue) for data processing; write well-tested, secure code; support operations and maintenance; participate in code reviews and cross-functional Agile collaboration.

Build and operate distributed systems for profile ingestion and queries in Pyroscope. Lead projects end-to-end, participate in on-call rotations, mentor teammates, design for reliability and performance, and work closely with customers and Grafana Cloud teams.

The Senior Software Engineer will design and implement backend services, manage architectural decisions, and drive improvements in data quality, performance, and reliability, while collaborating across teams to enhance client and provider interactions in mental healthcare.

Build and own the graph layer and RAG architecture enabling agent reasoning over full patient context. Select graph DBs, design query patterns, and ensure temporal coherence. Implement event-driven Kafka pipelines for auditable, immutable agent workflows and enforce ReBAC permissions. Prioritize safety and scalable AI-assisted workflows, participate in spec and plan reviews, and drive architecture decisions.

The Senior Back-End Developer builds and maintains server-side operations for cloud solutions, collaborating with teams to deliver software, support users, and document features.

The Senior Backend Engineer will lead client projects, build AI solutions, and develop technical standards while mentoring junior engineers.

Design and implement data infrastructure for Oura's Context Hub. Responsibilities include building data pipelines, defining data models, creating APIs, and ensuring system resilience in production environments.

The Senior Backend Engineer will develop financial technology solutions, focusing on transparency in consumer lending through modern API development and data analytics, while collaborating with various teams to enhance product offerings.

Design, build, and optimize high-throughput, highly available backend services in Golang for 24/7 sports and prediction-market applications. Lead architecture decisions, implement features, diagnose and resolve high-concurrency bottlenecks, and provide high-tier operational support for real-time transactional systems.

Lead backend development to scale and harden API infrastructures, implement unit testing playbooks, optimize core algorithms, support migration from Supabase to a robust cloud provider, ensure system reliability and scalability, collaborate with frontend and DevOps, and integrate AI workflows and RPA where applicable.

The role involves developing and enhancing a revenue cycle management platform, ensuring efficient data access for healthcare providers, and collaborating with clients to address their needs.

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

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

As a Senior Backend Engineer, you will design, build, and maintain scalable backend systems and APIs, optimize performance, and ensure system reliability.

Develop and maintain backend infrastructure for an AI-powered wealth management platform. Collaborate with frontend teams and architect distributed systems.

Build and improve frontend experiences for login, signup, OAuth, account security, and multi-user/org support. Contribute to migrating main views to React Native, design high-performance React/TypeScript UIs, collaborate with backend engineers and product teams, and write well-tested, reliable code to maintain low-latency user surfaces at scale.

The Senior Backend Engineer will develop, test, and maintain scalable integrations, support cross-functional teams, and enhance developer experiences.

The Senior Backend Engineer will architect and implement backend systems, focusing on distributed systems and service-oriented architecture, while mentoring junior engineers and improving CI/CD stability.

As a Senior Backend Engineer, you will design scalable solutions, own products, lead technical architecture, and contribute to key engineering projects.

As a Senior Backend Engineer, you will design, implement, and maintain complex integrations with various third-party systems and ensure high performance and reliability in a cloud-native environment, focusing on AI-driven product features.

The Senior Back-End Developer will lead backend initiatives, mentoring a team, developing infrastructure with PHP and Laravel, and optimizing technology.

The Senior Back-End Engineer at Forum One develops complex WordPress solutions, integrates APIs, and collaborates with teams to enhance digital platforms.

Build and scale secure, high-performance backend systems and APIs that connect onchain protocols and offchain infrastructure. Own integrations with custodians, KYC/identity, payments, and third-party blockchain tooling. Collaborate with smart contract and frontend teams, enforce backend standards, and support ops, investor services, and compliance with automation and observability tooling.