December 20, 2025
Bring a cot, bring hot takes
Raycaster (YC F24) Is Hiring a Research Engineer (NYC, In-Person)
YC startup promises big equity, bigger commute, and a side of PDF chaos
TLDR: Raycaster, a YC startup, is hiring an in-person NYC Research Engineer to build tools that tame messy science documents. Commenters cheered the serious mission but roasted the 5-day office rule and vague “founder-level equity,” debating whether agent-driven document work is bold innovation or just fancy PDF wrangling.
Raycaster, a fresh Y Combinator startup, says it’s hiring a Research Engineer in NYC to build a “document IDE” for life sciences—basically turning chaotic PDFs and redlined Word files into a smart workspace agents can search, cite, and help draft. The thread went off: half cheering “finally real-world AI,” half rolling eyes at another “agent” pitch. Fans pointed to regulated medicine as a serious arena where reliable tools matter; skeptics joked it’s “a glorified PDF wrangler with better bookmarks.” Linked: raycaster.ai.
The hottest fight? In-person 5 days at Hudson Yards. Remote diehards called it a 2019 cosplay; office loyalists said high-stakes work needs whiteboards, fast feedback, and fewer Zooms. NYC locals dropped rent memes and transit lamentations (“bring a cot”). One thread accused YC of trend-chasing; another praised the focus on guardrails and evals—safety checks and testing—over flashy demos.
Then came the money talk: “founder-level equity” with details “in process.” Some saw opportunity; others saw vibes without numbers. People liked the promise to publish from day 0 and build benchmarks for gnarly document tasks, but questioned the role: “ship production systems” plus “define research direction” sounds like two jobs, one salary. A meme crowned the hire “PDF Whisperer, FDA Edition.”
Key Points
- •Raycaster builds a document IDE for regulated life sciences work, using agents to manage and draft from complex, versioned documents.
- •The company is hiring a Research Engineer to both ship production systems and define research direction, with opportunities to publish from day one.
- •Responsibilities include building agent workflows (orchestration, retrieval, tool use, guardrails, evaluations) and maintaining document pipelines, versioning, reliability, and observability.
- •Candidates should have strong fundamentals in distributed systems, performance, and reliability; be comfortable with rigorous evaluation; have product taste; and learn domains quickly.
- •The role is in-person in NYC (Hudson Yards) five days a week, offering base pay plus founder-level equity; applications require links to shipped work and examples of research/evaluations.