Technical Support Engineer
Company: Blacksmith
Location: New York City
Posted on: April 1, 2026
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Job Description:
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, run CI for 2,000 companies and hit
~$10M in ARR in less than 2 years. We operate thousands of
bare-metal machines across multiple regions, regularly schedule 5
0k 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. What you’ll be working on
You will work with Blacksmith customers and the pre-sales team to
assist with the diagnosis and resolution of complex technical
issues. Develop a deep technical understanding of the Blacksmith
product & technologies. Identify trends / patterns in customer
issues and suggest ways we can improve our product. Provide that
feedback loop from the customers to our internal teams. Reproduce
technical issues and work with the engineering team to resolve
them. Develop tools, processes & automations for diagnosing issues
and optimizing the service for performance. Collaborate
cross-functionally to create the best possible product experience
for our customers. Build out the foundations for Technical Support
Engineering best practice, with a view to building out a team in
the future. You’re a good fit if you Have experience as an early
Technical Support Engineer at a growth-stage business. Supporting
customers on a highly technical product. Ideally you’ve worked with
large scale distributed systems. Experience in setting up AI/agent
native workflows. Comfortable with Claude skills, MCPCLI based
tooling, and have created some AI native leverage in your
current/previous roles. Can build robust, scalable processes, with
an eye for aggressively automating manual tasks to create leverage
for the broader support team. Always take a customer first approach
- you’ll go above and beyond to resolve an issue for the customer.
Enjoy working cross functionally and want to be a key voice of the
customer internally. 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)
Keywords: Blacksmith, West Babylon , Technical Support Engineer, Engineering , New York City, New York
