Founding Engineer (In-Person)

What you’ll do

Maintain the core: agent orchestration + document pipelines + versioning

Ship end-to-end: Go backend + React UI (you’ll touch everything)

Make it reliable: evals, guardrails, observability (no demo-only systems)

Turn customer pain into product fast (you’ll talk to users)

What we care about

You’ve built and shipped real systems (Go/Rust preferred). You can own a subsystem.

You’re strong on fundamentals: distributed systems, concurrency, performance

You’ve shipped AI/LLM features in production, and you learn new things insanely fast and can prove it

You have high attention to detail + high standards

You have product taste

• you notice UX/copy/states, not just code
• If you don’t know something, you figure it out in hours - not weeks

Nice to have

• interest in biotech, healthtech, or any regulated industry
• Research angle (optional)
• We’re working on agent / domain-specific evals, new embeddings and indexing benchmarks, and may publish benchmarks / deep dives and submit to conferences / journals. If you want to help set standards for this space, there’s room.
• Logistics

• NYC, in-person, 5 days/week (we build better together)
• Competitive base + founder-level equity (2–10%)

Apply: send (1) GitHub / past systems you built, and (2) one paragraph on why you’re interested in working at Raycaster to founders [at] raycaster.ai