Product Engineer, Care Loop (backed by Y Combinator, $5M+ ARR, $23M+ raised)

The Role

Hey, I'm Daniel Wilson, co-founder and CTO at Legion. I studied applied math and CS at Princeton, led the Office Scripts and Power Automate integration at Microsoft, and did deep learning and RL research before that. GitHub: github.com/danielgwilson

I'm hiring a product engineer to ship the care loop: the path a real psychiatric patient travels through our platform. Booking a visit. The provider seeing their history at a glance. The prescription going out. The follow-up landing on the calendar. Right now our providers run thousands of visits a month on legacy tools while we move them onto the platform we built, and the engineer in this seat is the one who makes that platform good enough that nobody misses the old one.

This is not a ticket-taking job and it is not an infra job. It's the seat for someone whose instinct, handed "the provider can't scan the patient's meds fast enough during a live visit," is to go sit in on a visit, fix the screen, ship it that week, and then fix the three things they noticed while they were in there. The best engineer we've had in this lane got hired in 8 days and owned an entire e-prescribing integration within a month. That's the pattern this seat rewards.

What You'll Own

• The live clinic test. We're driving to a full clinic day on our platform with zero fallback to legacy tools. The current gap list is specific: prior-visit context at a glance, medication lists a clinician can scan in seconds, unambiguous pharmacy selection, prescription status you can trust, patient accounts and visit links that just work. You ship these.
• The patient surface. Booking, intake, portal, messaging, reminders: the experience that decides whether a psychiatric patient in Texas feels taken care of or lost.
• The provider surface. The screens a nurse practitioner uses with a live patient in the room. Scannability and correctness here are clinical safety, not polish.
• The loop end to end. Visit to note to prescription to follow-up, as one coherent flow rather than four features. You'll work against our event-sourced clinical spine (orders, tasks, receipts) with a principal engineer owning the substrate under you.
• Agent-assisted everything. We ship with AI agents as a matter of course, and your work goes to production weekly at minimum, usually faster.

What "A Fit" Looks Like, Concretely

• You've shipped real product 0-to-1 or 1-to-N and owned it after launch: not tickets, features with your name on them and users who noticed.
• You move across the stack without ceremony: Next.js and TypeScript on the front, Postgres and event-driven services behind it.
• You use AI coding agents daily and can show us your setup. We care what you let them do and how you check them.
• You have product taste under constraint: you can make a screen a stressed clinician reads in three seconds, and you know that's a different problem than making it pretty.
• Handed an ambiguous feature, you go look at the real workflow (sit in the visit, read the transcript, call the ops person) before you write code.
• Experience level: doesn't matter if you're cracked. Our best hire in this lane was early-career; the bar is slope and ownership, not years.

This role is not for you if you need a spec before you can start, you think of frontend as someone else's job (or backend as someone else's job), or shipping to real patients weekly sounds stressful rather than like the whole point.

Tech Stack

TypeScript and Node.js, Next.js 15 on Vercel, Postgres, event-sourced clinical records, production LLM agents (Anthropic, OpenAI) with tool-calling and evals, e-prescribing and EHR integrations, PHI-grade security and audit trails.

Logistics

• Job type: Full-time
• Role type: Engineering
• US Visa Sponsorship: Yes
• Salary: $160,000 to $260,000 depending on experience, plus meaningful early-stage equity in a category defining company.
• Health Insurance: Medical, dental, and vision benefits
• Additional Perks: In-person retreats, meal stipends, etc.
• Time Off: Flexible, unlimited vacation policy
• Work hours: flexible but demanding-because we are (literally) saving lives.
• Work Setup: In-person @ San Francisco HQ; partial remote considered for exceptional candidates (our track record includes both).
• Impact: Work on something that truly matters to millions of patients and families.
• Autonomy and Learning: Ownership over your projects with the freedom to set priorities, shape processes, and drive outcomes end-to-end.
• Growth Opportunities: As we scale, we envision our top performers stepping into expanded roles and joining our executive leadership team.