About Happy Robot
Happy Robot is the AI‑native operating system for the real economy—a system that closes the circuit between intelligence and action. By combining real‑time truth, specialized AI workers, and an orchestrating intelligence, we help enterprises run complex, mission‑critical operations with true autonomy.
Our AI OS compounds knowledge, optimizes at every level, and evolves over time. We’re starting with supply chain and industrial‑scale operations, where resilience, speed, and continuous improvement matter most—freeing humans to focus on strategy, creativity, and other high‑value tasks.
You can learn more about our vision in our Manifesto. Happy Robot has raised $62M to date, including our most recent $44M Series B in September 2025. Our investors include Y Combinator (YC), Andreessen Horowitz (a16z), and Base
10—partners who believe in our mission to redefine how enterprises operate. We’re channeling this investment into building a world‑class team: people with relentless drive, sharp problem‑solving skills, and the passion to push limits in a fast‑paced, high‑intensity environment. If this resonates, you belong at Happy Robot.
About
The Role
At Happy Robot, Full Stack Engineers 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.
What We’re Looking For
• 5 years of professional experience
• Strong generalist — you’re excellent on either the front end or back end, and comfortable working across the stack
• Front‑end expertise with Type Script 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.
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
Why Join Us?
• Opportunity to work at a high‑growth AI startup, backed by top investors.
• Rapidly growing and backed by top investors including a16z, Y Combinator, and Base
10.
• Ownership & Autonomy – Take full ownership of projects and ship fast.
• Top‑Tier Compensation – Competitive salary equity in a high‑growth startup.
• Comprehensive Benefits – Healthcare, dental, vision coverage.
• Work With the Best – Join a world‑class team of engineers and builders.
Our Operating Principles Extreme Ownership
We take full responsibility for our work, outcomes, and team success. No excuses, no blame‑shifting—if something needs fixing, we own it and make it better. This means stepping up, even when it’s not “your job.” If a ball is dropped, we pick it up. If a customer is unhappy, we fix it. If a process is broken, we redesign it. We don’t wait for someone else to solve it—we lead with accountability and expect the same from those around us.
Craftsmanship
Putting care and intention into every task, striving for excellence, and taking deep ownership of the quality and outcome of your work. Craftsmanship means never settling for “just fine.” We sweat the details because details compound. Whether it’s a product feature, an internal doc, or a sales call—we treat it as a reflection of our standards. We aim to deliver jaw‑dropping customer experiences by being curious, meticulous, and proud of what we build—even when nobody’s watching.
Majo
Be friendly & have fun with your coworkers. Always be genuine & honest, but kind. “Majo” is our way of saying: be a good human. Be approachable, helpful, and warm. We’re building something ambitious, and it’s easier (and more fun) when we enjoy the ride together. We give feedback with kindness, challenge each other with respect, and celebrate wins together without ego.
Urgency
with Focus
Create the highest impact in the shortest amount of time. Move fast, but in the right direction. We operate with…
