Top Backend Engineer Jobs in San Francisco, CA

Lead engineering best practices and develop scalable AI-driven applications and data pipelines while mentoring other engineers. Analyze complex problems and deliver impactful AI products.

Lead high-impact AI solutions, overseeing architecture and deployment. Partner with stakeholders, coach engineers, and drive project success from inception to launch.

The Staff Backend Engineer will architect retail-facing search systems, integrate AI capabilities, solve scaling problems, collaborate cross-functionally, and mentor the team.

Lead backend architecture and deliver reusable solutions, unblock engineering teams across the development lifecycle, drive complex design and bug fixes, set code review standards, mentor engineers, collaborate on company-wide projects, and make technical decisions balancing correctness, performance, and customer impact.

As a Founding AI Backend Engineer at Pakket, you'll enhance backend systems, debug the CV pipeline, and deploy services across warehouses, ensuring operational reliability and rapid feature deployment.

As a Backend Engineer, you will design and optimize backend services, APIs, and data processing, collaborating with leadership and users.

As a Backend Engineer, you will develop resilient applications using Python and FastAPI, working on large-scale data analytics with a focus on AI coding tools.

The role involves building and optimizing cloud infrastructure and platform features, leveraging Golang, Kafka, and PostgreSQL in a fast-paced startup environment.

Looking for a Java Backend Developer with extensive experience in Java, Spring, and web services. Must have knowledge of Hibernate and Oracle.

Build and maintain APIs for Aidaly’s products, design integrations with external systems, and ensure system scalability and reliability.

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

The Backend Engineer will build products from scratch, navigate priorities, and lead teams, requiring strong technical skills and curiosity about business problems.

The Staff Back End Engineer will lead engineering best practices, solve complex problems, build scalable applications and data pipelines, and mentor engineers.

Build enterprise-grade authentication, authorization, and identity features across the full stack. Design and implement RBAC, provisioning (SCIM), SSO/OAuth integrations, secure public APIs, and admin workflows for auditing and compliance. Own end-to-end product changes, collaborate on architecture, and mentor engineers to deliver scalable, reliable systems for enterprise customers.

The Senior Backend Engineer will develop AI-powered language learning products, focusing on backend systems while coordinating with design and machine learning teams.

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 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.

Own and develop Provider Servicing backend systems: design scalable, secure Java/Spring Cloud microservices and integrations (Mulesoft), build APIs and data services, adopt AI developer tools, mentor engineers, collaborate cross-functionally, and automate operations to improve SLAs.

The Senior Software Engineer will lead and support a team in developing reliable and scalable backend systems, collaborating on product development, and improving infrastructure for secure communication between services.

As a Backend Engineer, you'll build and maintain integrations with financial systems, solve data synchronization challenges, and contribute to backend features' delivery.

As a Backend Engineer at Paraform, you'll optimize backend systems, manage integrations, ensure system reliability, and strengthen security. You'll play a pivotal role in shaping the product and tackling performance challenges.

The Backend Engineer will develop features across APIs, CLI tools, and billing systems, mentor team members, and set technical direction.

As a Backend Engineer at Ava, you'll design and build infrastructure to enhance communication for deaf/hard-of-hearing users, improve services, and ensure security.

Own and evolve Lighthouse's backend: improve performance, reliability, and scalability; design agentic LLM-powered workflows; harden security and environment isolation; scale the GraphQL API; build data pipelines and integrations; and strengthen document ingestion and generation pipelines for legal outputs.