Speed up your GitHub actions with Blacksmith. Run CI/CD 2x faster, download caches 4x faster, build Docker images 40x faster, and eliminate queue times. Start free today. Backed by Peak XV, Y Combinator and GV.
About the role
Serve as a trusted point of contact for investors, board members, design partners, customers, and press - with judgment about what needs the CEO and what you can handle yourself. Proven experience supporting c-suite executives in the fastest paced environments. You have either supported the CEO of another hypergrowth startup, or you have supported Partners at the most demanding investment banking, private equity or venture capital firms. Found on 1752vc Careers, the job board for startup and VC roles.
What they're looking for
- The ability to preempt a need and to fill that need, without explicit direction
- The highest sense of urgency to all tasks, you are relentlessly focused on delivery
- A no ego approach to your work. Whatever the task, you own it
- Strong judgment and prioritization instincts: you know what matters most, and why
- Exceptional written communication, including the ability to write clearly in someone else's voice
- Comfort with ambiguity, shifting priorities, and a company that looks different every quarter
More about this role
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 week, running CI for 7,000+ companies and tens of millions in ARR. We’ve grown 10x so far in 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 $58.5M from Seed to Series B, led by Google Ventures (GV) & Peak XV Partners, 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.
This is a critical role,...
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