Overview At Blacksmith, we provide cloud infra to help companies run their CI (GitHub Actions) substantially faster and cheaper. Our mission is to build a CI cloud. Our bet is that CI, as a class of workloads, is ready to be unbundled from the hyperscaler clouds (AWS/GCP/Azure). This is a bold statement, and we have an ambitious roadmap ahead.

Some things we're proud of

• We orchestrate millions of CI jobs per day over our own fleet of bare metal hardware.

• We power CI for 900+ fast-growing startups like Supabase, UserTesting, Ashby, Legora, AtoB, Pylon, and Finch.

• Founders: Aditya Maru [https://www.linkedin.com/in/maruaditya/] and Aayush Shah [https://www.linkedin.com/in/aayushshah15/] were early systems engineers at Cockroach Labs. Aditya (JP) Jayaprakash [https://www.linkedin.com/in/adijp/] worked on search infra and was later a founding member of the ads team at Faire.

• We went through Y Combinator's W24 batch and raised $13.5M Series A from Google Ventures

• We hit $6M ARR with less than 18 months in the market, and have continued our rapid growth from there.

You are a good fit if you

• Have strong CS fundamentals and a deep understanding of React and modern frontend development.

• Can work closely with design to build polished, high-performance UIs — and aren’t afraid to go deep on browser performance, rendering bottlenecks, or complex component architecture.

• Have 3+ years of software development experience.

• Enjoy working in person 5 days a week in NYC/SF.

• Enjoy working at a very early-stage startup and are comfortable with ambiguity