> Markdown version of [/jobs/ext/4551025-senior-software-engineer-backend](https://www.wearedevelopers.com/jobs/ext/4551025-senior-software-engineer-backend). 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). --- # Senior Software Engineer - Backend - **Company:** Happyrobot Inc. - **Location:** San Francisco, CA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Reliability Engineering, Software Engineering, Reliability of Systems, Backend, Front End Software Development, Automation Anywhere - **Published:** November 3, 2026 - **Apply:** https://www.careerbuilder.com/job-details/senior-software-engineer-backend-san-francisco-ca--13f56fc8-1f5c-4035-a9cb-0f5688c8b535 ## About the Role Software Engineering, Artificial Intelligence (AI), Speech Technology, Logistics, Software Engineering, Application Programming Interface (API), Data Modeling, Product Support, Systems Reliability, Reliability Engineering, We are looking for a versatile and highly skilled Senior Backend Software Engineer to join our team. This person will own meaningful parts of the product and infrastructure end-to-end. We're looking for builders who thrive in ambiguity, care deeply about craft, and want real ownership over what they create., * 5+ years of professional experience * Strong backend engineering experience, with a focus on building scalable systems * Experience with Go or a strong willingness to work in Go in production * Solid understanding of system design, APIs, data modeling, and service reliability * Product-oriented mindset and comfort making tradeoffs in a fast-moving environment * Experience operating and maintaining production services ## Description * Design, build, and operate backend services that support our core product * Improve system reliability, performance, and observability * Work on real-time infrastructure that powers voice-based AI workflows * Collaborate closely with frontend engineers, product, and founders * Ship to production frequently and iterate based on customer needs and system behavior