> Markdown version of [/jobs/ext/4549818-backend-engineer](https://www.wearedevelopers.com/jobs/ext/4549818-backend-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Backend Engineer - **Company:** _* Sirius - **Location:** San Francisco, CA, United States - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Computer Programming, Databases, Software Engineering, Systems Integration, Backend, Api Design - **Published:** November 3, 2026 - **Apply:** https://www.careerbuilder.com/job-details/backend-engineer-san-francisco-ca--ca2fa4ec-80e8-4daf-a1d6-d54faf8e2744 ## About the Role Problem Solving Skills, Customer Support/Service, Artificial Intelligence (AI) Agents, LifeTime Value (LTV), Consumer Branding, Customer Retention/Renewal, Artificial Intelligence (AI), Scholarship, Product Support, Architectural Design, * +1 years of professional experience in backend development, with a track record of delivering reliable and scalable systems. * Advanced proficiency in server-side programming and experience designing database-driven applications. * Strong grasp of API development, systems integration, and best practices in software engineering. * Experience building and maintaining environments that scale to serve real users in production. * An independent and proactive approach to problem-solving, with the ability to drive projects forward. * Based in San Francisco or able to be here full-time. We're not offering visa sponsorship at this time. ## Description As a Backend Engineer, you will play a central role in building and maintaining the critical backend infrastructure that powers our products. In this position, you will: * Contribute to designing scalable architectures that support new product features and business requirements. * Drive the development, deployment, and optimization of backend services, ensuring performance, reliability, and maintainability. * Collaborate with cross-functional teams to integrate third-party platforms, APIs, and emerging AI technologies. * Take an active part in the continuous improvement of our engineering standards and development processes. * Proactively identify and resolve complex technical challenges to ensure stable, secure operations.