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HappyRobotHappyRobotSan Francisco, CA

Software Engineer - Full-Stack

Full-stack engineer owning end-to-end product sections and infrastructure at an AI startup. Requires strong TypeScript/Next.js frontend and Go backend expertise, with a product-minded approach to building scalable systems.

180k – 220k/yr
HybridFullstack Engineering

About the role

What You’ll Do

  • Build and own entire sections of the product, including major parts of the web application
  • Design, implement, and ship features end-to-end — from UI to APIs to infrastructure
  • Help optimize and scale our voice AI infrastructure, improving latency, reliability, and cost
  • Collaborate closely with founders and teammates to shape product direction
  • Ship to production frequently and iterate based on real user feedback

What We’re Looking For

  • Strong generalist — excellent on either the front end or back end, and comfortable working across the stack
  • Front-end expertise with TypeScript and Next.js, including performance, UX, and clean architecture
  • Back-end experience with Go, building reliable, scalable systems
  • Product-minded engineer who understands tradeoffs between speed, quality, and scale

Skills

TypeScriptNext.jsGoReactNode.jsKubernetesAWSDockerPostgresRedis
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