Head of Finance

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 3000+ 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 Blacksmith scales we expect infrastructure investment to become a major use of capital. We're looking for someone who can help us think through not only how much capacity to build but how that growth should be financed.

What You'll Do

• Own financial planning forecasting budgeting and board reporting.

• Build models to support company planning and strategic decision-making.

• Partner with engineering and infrastructure teams to forecast infrastructure investment and capacity requirements.

• Own cash forecasting treasury management capital planning and financing strategy.

• Analyze pricing margins and business performance.

• Support fundraising investor relations and strategic projects.

• Build the systems and processes that will scale with the company.

You Are a Good Fit If You

• Have 7+ years of experience in strategic finance FP&A investment banking private equity growth equity or a high-growth technology company.

• Are an exceptional financial modeler.

• Enjoy solving ambiguous first-principles problems.

• Can communicate effectively with both engineers and executives.

• Have strong business judgment and a bias toward action.

• Want to work closely with founders and help shape company strategy.

• Understand how high-growth companies finance expansion and think strategically about capital structure.

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

Bonus

• Experience in an infrastructure cloud or developer tools company.

• Experience with consumption-based businesses.

• Experience with fundraising capital planning debt facilities equipment financing or infrastructure-intensive businesses.

• Experience building a finance function from the ground up.

Compensation and benefits

• Medical Vision and Dental insurance.

• Competitive base + equity.

• 401K match.

• Unlimited PTO.

• Annual offsite.

• Early-exercise stock options

• 12 weeks fully paid parental leave (US)

What We Do

Blacksmith is the fastest way to run your GitHub Action workflows. We orchestrate your workflows over our fleet of bare-metal gaming CPUs with your build caches co-located right next to your CI jobs. All it takes is a one-line code change. Get started with Blacksmith https://docs.blacksmith.sh/getting-started/quickstart