Staff Product Engineer

Company: Blacksmith
Location: New York NY (Flatiron office in person 5 days per week)
Compensation: $280000 - $380000 significant early-stage equity
Employment Type: Full-time
Visa Sponsorship: Visa transfers only (no new visas)

Blacksmith started by making CI workloads run much faster: its first product runs GitHub Actions substantially faster and cheaper on its own global fleet of bare-metal machines instead of rented cloud VMs. It now orchestrates tens of millions of Firecracker VMs a month for 3000 companies schedules 100k vCPUs concurrently and runs a petabyte-scale Ceph cluster it manages itself.

Blacksmith reached about $10M ARR in under two years has grown revenue more than 5x since the start of 2026 and has raised $58.5M through its Series B.

Blacksmith is hiring a Staff Product Engineer to set the technical direction for new products: AI-native developer tooling that does not yet exist anywhere in the industry. The role operates at the organization level owning architecture solving complex product problems and driving 0-to-1 initiatives. You will be a key technical authority and force multiplier: raising engineering standards mentoring senior engineers and owning production outcomes as a hands-on technical leader.

• Own and drive the architecture of new products designing and building the next generation of AI-native developer tooling.
• Translate business and product strategy into long-term technical roadmaps and execution plans.
• Drive new products from 0 to 1.
• Own production outcomes including reliability performance and operational excellence.
• Mentor senior engineers and act as a force multiplier.
• Operate in ambiguous spaces where both the problem and the solution need defining.

• 7 years as a full-stack engineer owning 0-to-1 product builds end to end
• Designed built and shipped exceptional products in high-growth environments with recognized engineering teams
• Strong technical fundamentals across the stack particularly TypeScript and React
• Set and led the technical direction of a product from an early stage to one known for exceptional customer experience
• Power user of coding agents and agentic tooling with compelling examples
• Track record of leading through influence as an individual contributor
• Clear thinking and communication across engineers leadership and non-technical stakeholders
• Ability to work in person in New York 5 days a week

• Experience at a developer tools or infrastructure startup building for engineers

Initial screen (30 min) technical interview I (45-60 min) technical interview II (2 hours) final onsite (30-45 min).

TypeScript React

REVENUE: 17.5% of first-year salary. Est. fee per hire $49K-$67K; 3 seat(s) up to $173K if all filled.

TARGET COMPANIES (client (Ramp/Figma named) suggested): Ramp Figma Vercel Linear Supabase Retool GitHub.

BEST-FIT CANDIDATE: 7-20 yrs; 0-to-1 full-stack product leadership at recognized startup; TypeScript React; heavy coding-agent user; visa: transfers only; location: NYC 5 days. Avoid big-tech/B2C-only contractors frequent movers remote seekers and infra/DevOps/SRE profiles.