Software Engineer - Backend

About HappyRobot HappyRobot 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. HappyRobot has raised $62M to date, including our most recent $44M Series B in September2025. Our investors include YCombinator (YC), AndreessenHorowitz (a16z), and Base10—all 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. About the Role At HappyRobot, 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 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 What You’ll Do 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 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, YCombinator, and Base10. 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. Craftsmanship – Putting care and intention into every task, striving for excellence, and taking deep ownership of the quality and outcome of your work. We are “majos” – Be friendly & have fun with your coworkers. Always be genuine & honest, but kind. Urgency with Focus – Create the highest impact in the shortest amount of time. Move fast, but in the right direction. Talent Density and Meritocracy – Hire only people who can raise the average; exceptional performance is the passing grade. First‑Principles Thinking – Strip a problem to physics‑level facts, ignore industry dogma, rebuild the solution from scratch. Privacy & Data Processing The personal data provided in your application and during the selection process will be processed by Happyrobot, Inc., acting as Data Controller. By sending us your CV, you consent to the processing of your personal data for the purpose of evaluating and selecting you as a candidate for the position. Your personal data will be treated confidentially and will only be used for the recruitment process of the selected job offer. In relation to the period of conservation of your personal data, these will be eliminated after three months of inactivity in compliance with the GDPR and legislation on the protection of personal data. If you wish to exercise your rights of access, rectification, deletion, portability or opposition in relation to your personal data, you can do so through View email address on click.appcast.io subject to the GDPR. For more information, visit By submitting your request, you confirm that you have read and understood this clause and that you agree to the processing of your personal data as described. #J-18808-Ljbffr Happy Robot