About the role

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 week, running CI for 5,000+ companies and hitting ~$50M in ARR in 2.5 years. We've more than 5x’d our 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 $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.

What you'll do

Build and run the content engine. We are constantly working on complex infrastructure problems and have a lot of features to launch this year, but there's no machinery yet for turning launches and engineering work into content on a reliable cadence. Today that overhead falls on engineers and founders, which means it often doesn't happen at all. You'll build the machine and own the cadence, so a regular stream of high-quality technical content ships.
Design how we launch. We're shipping several 0-to-1 products and features this year and each needs a narrative: the announcement, the docs-adjacent explainers, the demos. You'll work closely with the Product team to build up this playbook and reduce the overhead with every launch.

Blacksmith helps companies run their continuous integration (CI) up to twice as fast, at half the cost. We do this by running their CI on high performance gaming CPUs.

Engineering productivity is often marred by slow CI that grows quadratically with the size of the engineering organization.
On top of this, companies pay high markups to run CI on the hyperscalers.
Consequently, companies have to run their CI on spot instances to keep costs in check. Since spot instances can get pre-empted at any point, running CI reliably on them requires significant engineering investment.

Blacksmith offers CI compute that is more performant, cheaper, and reliable. With Blacksmith, companies do not have to think about CI as they scale.

We are starting with GitHub Actions - today's most popular and fastest-growing CI system. With a one-line change, companies can run their CI up to twice as fast on our high-performance hardware. In addition to this, Blacksmith provides colocated warm caches along with optimizations for common CI workloads (like building and pushing Docker images).

Aayush, JP and Aditya have gained deep systems and product knowledge from their time at Cockroach Labs and Faire respectively. Both these companies, with several hundred engineers, were spending in the order of millions of dollars on their CI. Yet they were riddled with slow CI and actively seeking out cheaper and faster alternatives. Blacksmith offers exactly this alternative, at a time where being lean is table-stakes for most companies.

Technical Storyteller

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