HeadofFinance

About Blacksmith - We started by building infrastructure to run CI workloads really fast. Our first product helps companies run GitHub Actions substantially faster and cheaper by owning and operating our own global fleet of bare-metal machines rather than renting generic cloud VMs. - Today, we 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. We’ve more than tripled revenue since the start of 2026. - We operate thousands of bare-metal machines across multiple regions, regularly schedule 100k vCPUs concurrently, and run a petabyte-scale Ceph cluster that we manage ourselves. - We’ve raised $13.5M across Seed and Series A, led by Google Ventures (GV), and we’re 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. Our GTM is led by Jon Boyer, formerly Head of Sales at Zapier. - We’re now extending the same CI infrastructure into a broader platform: running agent sandboxes at scale and building our own background coding agent on top of it. About the Role This is not a traditional SaaS finance role. Yes, you'll own forecasting, planning, reporting, and the core finance function. But you'll also work directly with the founders on some of the company's most important decisions: - How should we allocate capital as Blacksmith scales? - How much infrastructure should we invest in and when? - How do we balance growth, reliability, and capital efficiency? - How should we finance infrastructure growth through a combination of equity, cash flow, and debt? - How do we think about pricing, margins, and long-term unit economics? - When should we raise capital and how much? You'll help build the financial foundation for a company that sits at the intersection of software and large-scale infrastructure. As Blacks