Senior Software Engineer - Full-Stack

Happyrobot Inc.; San Francisco (CA); Hybrid; USD 220,000 - 250,000; Full time

Benefits offered by this job

Healthcare coverage

Dental coverage

Vision coverage

Competitive salary and equity

Job summary

Dormont Manufacturing Co, located in San Francisco, is seeking a Full Stack Engineer to own meaningful product parts and infrastructure end-to-end. You will thrive in ambiguity, excel either in front-end or back-end development, and have the autonomy to make significant contributions.

The ideal candidate will have 5+ years of experience, expertise in TypeScript and Next.js, and back-end experience with Go. The role offers a competitive salary range of $220K – $250K alongside comprehensive benefits.

Qualifications

• 5+ years of professional experience in software development.
• Strong understanding of both front-end and back-end technologies.
• Experience with building reliable and scalable systems.

Responsibilities

• Build and own major sections of the product including the web application.
• Design, implement, and ship features from UI to APIs.
• Optimize and scale the AI infrastructure.

Skills

Full Stack Development

TypeScript

Next.js

Go

Performance Optimization

Job description

About HappyRobot

HappyRobot is the infrastructure for enterprises to build and orchestrate AI workforces. Our AI workers don’t just communicate - they make decisions, take action, and run operations autonomously across voice, email, and enterprise systems. Born in Y Combinator (S23) and backed by a16z and Base10 with over $60M raised, we power critical operations for global enterprises worldwide.

Our platform is battle-tested in the most demanding environments - where AI has real consequences. We started in logistics, built our own voice stack, models, and orchestration layer from the ground up, and are now bringing that infrastructure to every enterprise that runs the real economy. Learn more about our vision in our manifesto.

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

• 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 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.

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 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.

Compensation

$220K – $250K