IT & Software

Software Engineer

Benchstack Ai

London · England · United Kingdom

Small, YC-backed AI dev tools startup building the cloud infrastructure for running coding agents (Cursor, Claude Code, Codex) remotely. Backed by Y Combinator, Moonfire Ventures, and angels from OpenAI, Anthropic, a16z, General Catalyst and Cloudflare.

You'd be the second engineer in, working directly with the founder across the full stack.

What you'd be doing:

  • Shipping core product features end to end, TypeScript and Svelte frontend, Go and Cloudflare Workers backend
  • Owning entire areas of the product with minimal direction
  • Helping set the engineering bar and architecture as the team scales from 2 to 10+
  • Working daily, in person, alongside the founder

What we're looking for:

  • 1 to 5 years full stack experience, shipped production TypeScript
  • Startup or startup-like environment, not big tech or banking
  • A daily power user of AI coding tools, not someone learning to like them
  • Comfortable in London on-site five days a week, open to a future SF move

£120K to £150K base, 1-2% equity. Ground floor, real ownership, fast pace.

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Reference: WJ-766_22291051

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