Blacksmith started by building infrastructure to run CI workloads really fast. Their first product helps companies run GitHub Actions substantially faster and cheaper by owning and operating their own global fleet of bare-metal machines rather than renting generic cloud VMs. Today, they orchestrate tens of millions of Firecracker VMs each month, running CI for 3,000+ companies and hit ~$10M in ARR in less than 2 years. They have more than tripled revenue since the start of 2026. They operate thousands of bare-metal machines across multiple regions, regularly schedule 100k+ vCPUs concurrently, and run a petabyte-scale Ceph cluster that they manage themselves. They’ve raised $13.5M across Seed and Series A, led by Google Ventures (GV), and are intentionally building a small, but exceptional team. Blacksmith was founded by a team with deep systems and scaling experience, including building search/ads infrastructure at Faire, and operating large distributed systems at Cockroach Labs. Their GTM is led by Jon Boyer, formerly Head of Sales at Zapier. They are now extending the same CI infrastructure into a broader platform: running agent sandboxes at scale and building their own background coding agent on top of it.
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Job Type
Full-time
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