Founding Engineer (In-Person)
Founding Engineer (In-Person) at Raycaster — New York, NY, US
- Company: Raycaster
- Location: New York, NY, US
- Employment type: FULL_TIME
- Salary: USD 100000–160000 / year
- Posted: 2026-07-17
About this role
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