Founding 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.

You can 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.

About the Role

• You’ll keep thousands of concurrent AI agents talking on the phone with minimal latency.
• You’ll auto-scale AI deployments efficiently.
• You’ll architect a fault-tolerant multi-region infrastructure.
• You’ll help automate testing procedures.
• You like AI. You really like AI.

Responsibilities

• Design, build, and maintain scalable, reliable, and secure infrastructure.
• Write code to automate operational tasks, build internal tools and improve system resilience.
• Troubleshoot and optimize system performance, latency, and availability.
• Collaborate with development teams to implement best practices for reliability and observability.
• Manage incidents, post-mortems, and continuous improvements in production environments.

Must Have

• Strong coding skills with Go.
• Deep understanding of backend systems, APIs, and databases.
• Kubernetes experience.
• 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.