Top Senior Backend Engineer Jobs in San Francisco, CA

The Senior Backend Engineer will resolve scaling and performance issues, implement new infrastructure, and collaborate with customers and partners on system requirements.

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

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

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.

Design, build, and operate backend Go services and smart contracts that mint, burn, bridge, and reconcile wrapped assets across multiple chains. Own end-to-end delivery from smart contract deployment through API design, SLOs, and production rollout. Drive asset migration pipeline improvements, run on-call operations, build observability and runbooks, and mentor junior engineers.

As a Senior Backend Engineer, you will design and scale core systems, build APIs, deploy ML infrastructure, optimize performance, and lead cross-functional projects with a customer focus.

The Senior Backend Engineer will optimize and build systems for the Inference Platform, focusing on low-latency, scalability, and performance for generative AI models. Responsibilities include enhancing request routing, developing auto-scaling systems, and collaborating with ML researchers to implement new model architectures in production.

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

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

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

Design, implement, and maintain scalable backend services primarily in Clojure; support and modernize legacy Node.js services; collaborate on cloud deployments, infrastructure-as-code, and deployment pipelines; ensure code quality through reviews and debugging; work with cross-functional teams to integrate services and improve reliability.

The Senior Backend Engineer will design and implement infrastructure for an AI system, solve complex data-related problems, and ensure system scalability and security.

Responsible for designing and maintaining scalable backend systems, leading architectural decisions, implementing security measures, collaborating with teams, and mentoring others.

Design, develop, and operate scalable backend systems focused on authentication and authorization. Lead secure REST API and IAM feature development, mentor engineers, perform security-first code reviews, integrate observability, and drive reliable production releases in a remote-first SaaS environment.

Build, scale, and maintain cloud-native backend services and APIs using C#/.NET on Azure. Lead architecture, performance optimization, CI/CD, code reviews, mentor engineers, and collaborate with product, design, and frontend teams to deliver reliable, high-performance features.

As a Senior Back-End Engineer II, you will focus on platform engineering and DevOps, building CI/CD pipelines, managing cloud infrastructure, and supporting database operations.

As a Senior Backend Engineer at Edia, you will architect backend systems, supervise AI coding processes, and enhance AI-driven business automation.

Design, implement, and maintain scalable, high-performance backend services for Home Assistant Cloud. Work on authentication, subscriptions, and payment services, participate in code reviews, collaborate cross-functionally, apply security and data-protection best practices, and operate production systems including troubleshooting and improving reliability and performance.

Build and scale real-time backend systems for AI Agents, including orchestration, memory and context management, low-latency inference pipelines, eval frameworks, event-driven workflows, APIs (REST/gRPC), and production-grade observability, partnering with Applied AI and product teams to deploy multi-tenant, enterprise AI agent platforms.

Develop and maintain backend solutions, ensuring performance, security, and regulatory compliance, while collaborating in cross-functional teams.

Build and own production backend services in Python for a large-scale ecommerce search platform. Work with SQL-heavy systems, monitoring/alerting, and debugging user-facing systems. Deliver maintainable software via tests, code review, and incremental delivery. Collaborate on data integrations and optional ETL/ELT workflows with PySpark; apply SEO, API/auth, and unstructured data knowledge when needed.

Lead design and development of multi-tenant backend services and APIs for a space communications platform on AWS. Build scalable, secure services with automation, testing, and mentorship of junior engineers; interact with customers and partners and support operations for US government satellites.

Design, build, and maintain scalable backend services and APIs using Java and Spring Boot. Implement event-driven architectures with Kafka, manage PostgreSQL/Redis data, ensure performance and reliability, troubleshoot production issues, participate in code reviews, and collaborate across teams for deployments and monitoring.

The Senior Backend Engineer will build and maintain backend services for an observability platform, ensuring high performance and reliability. Responsibilities include managing APIs, engaging with the community, and tackling technical challenges related to data processing.

The Senior Backend Engineer at Weave will design, build, and maintain scalable backend services and APIs, influencing architecture and outcomes while collaborating across teams to enhance healthcare technology.