Software Engineer, Backend

About this role

Atomic Semi, founded by Sam Zeloof and Jim Keller, is building a compact semiconductor fabrication facility and seeks a Senior Backend Engineer to architect core systems powering their fab software platform. You'll design high-performance APIs and data models that enable process engineers to control, monitor, and orchestrate manufacturing hardware in real-time.

What you'll do

• Lead architecture and development of backend APIs using Go, Rust, or gRPC
• Design data models for manufacturing workflows (recipes, runs, tools, wafers, jobs)
• Integrate web applications with hardware and embedded systems for real-time operations
• Ensure reliability, observability, and performance of mission-critical manufacturing systems
• Drive long-term system architecture to support evolving fab processes and yield optimization
• Own systems end-to-end including failure recovery, troubleshooting, and on-call support

What they're looking for

• Go, Rust, or gRPC development
• Backend systems architecture and design
• Systems fundamentals (concurrency, networking, databases)
• Production system ownership and reliability engineering
• Hardware or embedded systems integration (nice-to-have)
• PostgreSQL and database performance optimization (nice-to-have)
• Distributed systems or networking (nice-to-have)
• Team leadership and technical communication

Benefits

• Competitive salary: $125,000–$195,000
• Generous equity compensation
• Early-stage hardware startup with solid funding
• World-class advisors and team
• On-site lab and office in San Francisco
• Opportunity to work on cutting-edge semiconductor technology