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Full-Stack Engineer
Full-Stack EngineerHappyrobot Inc. • San Francisco, CA, United States
Full-Stack Engineer

Full-Stack Engineer

Happyrobot Inc. • San Francisco, CA, United States
30+ days ago
Job type
  • Full-time
Job description

AboutHappyRobot

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.

Learn more about our vision in our Manifesto.

HappyRobot 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 Base10—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 HappyRobot.

AboutTheRole

As a Full‑Stack Engineer, you will own parts of the platform and infra, shipping daily to scale and optimize for rapid growth.

What we're looking for

  • Strong generalist—great at front‑end or back‑end
  • Proficient in Typescript & Next.js for front‑end
  • Proficient in Go for backend

What you will do

  • You will build entire sections of the product, including the web app.
  • You will assist with the optimization of the voice AI infrastructure.
  • MustHave

  • Good design / front‑end style
  • Excellent communication skills and the ability to explain technical concepts clearly
  • Passion for AI‑driven technologies
  • Founder mindset : hard work + independence + ownership
  • 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 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.
  • Craftsmanship —Putting care and intention into every task, striving for excellence.
  • We are “majos” —Be friendly & have fun with your coworkers; be genuine, kind, helpful, and warm.
  • Urgency with Focus —Create the highest impact in the shortest amount of time.
  • Talent Density and Meritocracy —Hire only people who can raise the average.
  • First‑Principles Thinking —Strip a problem to physics‑level facts.
  • 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 security@happyrobot.ai subject to the GDPR.

    For more information, visit https : / / www.happyrobot.ai / privacy-policy.

    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.

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