Software Engineer - Backend

HappyRobot is the infrastructure for enterprises to build and orchestrate AI workforces. Our AI workers don't just communicate - they make decisions, take action, and run operations autonomously across voice, email, and enterprise systems. Born in Y Combinator (S23) and backed by a16z and Base10 with over $60M raised, we power critical operations for global enterprises worldwide.

Our platform is battle-tested in the most demanding environments - where AI has real consequences. We started in logistics, built our own voice stack, models, and orchestration layer from the ground up, and are now bringing that infrastructure to every enterprise that runs the real economy. Learn more about our vision in our manifesto.

We are looking for a talented 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.

• 2+ 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

• →

  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