SECTION I · THE BRIEF
Brief #17391Updated 22 AUG 2026NEW YORK, NYYc
Employbl Company Profile

Founding Engineer (In-Person)

Raycaster is hiring a Founding Engineer (In-Person) in New York, NY. Full brief — comp band, interview process, and hiring team — available to Employbl members.

Location
New York, NY
Company size
2–10
Posted
3d ago
Via
Yc
Section II · Premium ProfileMembers only
  • 01Comp band & equity packageLocked
  • 02Seniority & experience requirementsLocked
  • 03Interview process & rubricLocked
  • 04Hiring manager & team contextLocked
  • 05Growth trajectory in this roleLocked
  • 06Offer & decision timelineLocked

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Founding Engineer (In-Person) · Raycaster

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Job title
Founding Engineer (In-Person)
Job location
New York, NY, US
Job description
### 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
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Where this role is based

New York, NY

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Raycaster headquarters

San Francisco, CA

Company size

210 employees

Founded

2024

Total raised

$500,000

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Funding rounds

  • Pre Seed$500K