Backend​/Infrastructure Engineer

About Atomic Semi

Atomic Semi is building a small, fast semiconductor fab.

It’s already possible to build this with today’s technology and a few simplifications. We’ll build the tools ourselves so we can quickly iterate and improve.

We’re building a small team of exceptional, hands‑on engineers to make this happen. Mechanical, electrical, hardware, computer, and process. We’ll own the stack from atoms to architecture. Our team is optimistic about the future and we want to continue pushing the limits of technology.

Smaller is better. Faster is better. Building it ourselves is better.

We believe our team and lab can build anything. We’ve set up 3D printers, a wide array of microscopes, e‑beam writers, general fabrication equipment – and whatever is missing, we’ll just invent along the way.

Atomic was founded by Sam Zeloof and Jim Keller. Sam is best known for making chips in his garage, and Jim has been a leader in the semiconductor industry for the past 40 years.

You’ll build the core systems that power the fab product, focusing on backend architecture, data models, and integrations with hardware and internal systems.

• Build and maintain backend APIs for the product
• Design and maintain core data models (recipes, runs, tools, wafers, jobs, etc.)
• Integrate with hardware / embedded systems
• Ensure reliability, observability, performance of systems
• Own system architecture and long‑term scalability

• Strong experience in backend systems (Go, Rust, GRPC)
• Deep understanding of systems fundamentals (concurrency, networking, databases)
• Experience designing and maintaining production systems
• Comfortable owning systems under real‑world constraints (oncall, failures, etc.)
• Strong opinions on architecture and code quality

• Experience with hardware / embedded systems
• Deep database knowledge (Postgres internals, migrations, performance)
• Interest in networking, security, or distributed systems
• Runs a homelab / builds infra for fun

We’re an early‑stage hardware startup with solid funding, world‑class advisors, and a lab/office in San Francisco, CA.

Atomic Semi is committed to fair and equitable compensation practices. The annual salary range for this role is $125,000 – $195,000. Compensation is determined based on your qualifications and experience. Our total compensation package also includes generous equity in Atomic Semi.

• Medical, Dental, and Vision insurance
• Generous Paid Time Off inclusive of Holidays and Sick Time
• Visa Sponsorship
• Life and Disability Insurance
• Paid Parental Leave
• 401(k) retirement plan
• Weekly Learning & Development opportunities
• Commuter Benefits including Parking and Late Night Uber rides from the office
• Lunches daily, Dinners 3x per week, Stocked Office Kitchen with Snacks and Spindrifts

We are an equal‑opportunity employer and do not discriminate on the basis of race, religion, national origin, gender, sexual orientation, age, veteran status, disability or other legally protected statuses.

This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls.