Demo

Senior Full Stack Engineer

prosperhealth
York, NY Full Time
POSTED ON 12/3/2025
AVAILABLE BEFORE 2/3/2026

Prosper Health is on a mission to make life happier and healthier for autistic and neurodivergent adults. 

Autistic adults have been systematically overlooked by the healthcare system—despite autism diagnoses increasing more than 5x in the past 25 years. This has led to extremely poor outcomes: autistic adults are 11x more likely than the average person to experience suicidal ideation and face a life expectancy 30 years shorter than average.

Prosper offers virtual mental health services—covered by insurance and built specifically for autistic adults. We help thousands of people get diagnosed for the first time in their lives, pair them with neurodivergent-affirming therapists, and foster belonging through community. In just 2 years, we have grown to double digit millions of run-rate revenue, thousands of active clients, and 200 clinicians. We have a lean, ambitious team, and recently raised a Series A to help us transform mental health for autistic and neurodivergent adults. 

The Role

As the sixth member of our engineering team, your work will serve as the foundation for the Prosper Health telehealth platform for years to come. You’ll write Typescript across the stack, use best-in-class healthcare APIs, figure out how to tackle messy healthcare problems, and drive our product direction. You’ll work closely with our Head of Engineering, our world-class engineering team and product designer, the rest of the founding team, clinical providers, and clients.

What types of things you’ll work on:

  • Clinician tooling – provide the tech stack so that clinicians can deliver best-in-class care that is driven by data and metrics.
  • AI appointment transcript analysis – improve client care and automatically follow up on pressing issues.
  • Easy client intake – the client experience should be seamless, and clients should only talk to a human if they want to.
  • Automatic cost estimates for clients – we believe in pricing transparency and hate surprise bills.
  • Iterating on our CI/CD pipeline, observability tools, and creating a delightful developer experience – we’ll continue to invest in best-in-class tools for our productivity and product’s reliability.

Our tech stack:

  • Typescript monorepo
  • Node.js / Fastify
  • React
  • Supabase for Postgres, auth, and storage
  • tRPC for our typesafe API
  • Prisma for our ORM

About You

  • Experience building successful software, independently or as a part of a small team / early-stage startup
  • Excited by an early stage environment and being one of the first engineering employees
  • Scrappy, self-directed, detail oriented, and with strong communication skills
  • Basic proficiency with React or a similar frontend framework
  • Comfortable working across the stack
  • In-person 2-4 days per week in our Chelsea (NYC) office preferred but open to virtual for the right candidate
  • 3 years of experience, ideally with some experience at a startup

Process

If we interview you, you can expect the following process:

  • An initial 30 minute conversation with Byrne (our Head of Engineering)
  • A 30 minute live coding interview with someone on our engineering team
  • A 2-3 hour take-home project
  • A 30 minute review of your project with Byrne
  • An onsite interview in Chelsea (NYC) to meet the team
  • We will speak with 2-3 references you provide

How to Apply

Please fill out the form below.

More about Prosper Health

Our team: We are a team of thoughtful, caring, action-oriented problem-solvers—paired with true experts in the field, including clinicians and autistic self-advocates. Our operations team is based in New York and spread across the U.S., with talent from Bain, McKinsey, BCG, FirstHand Health, SeatGeek, Benchling, and schools like Harvard, MIT, Yale, Penn, Northwestern, Dartmouth, Vanderbilt, and more.

Our culture:

  • Clients first - Our job is to solve real problems for our clients. Choose what makes life better for the client, even if it’s harder for us. Never lose sight of the person on the other side.
  • Find a Way - We use ingenuity, scrappiness, and determination to bend the world to accomplish our goals. We’re resourceful and do more with less.
  • Raise the Bar - We grow deliberately, by asking how things can improve and by giving and seeking feedback. We insist on the highest standards and keep pushing them higher.
  • Be a Good Person - Be kind, be honest, and make it fun to work here. Tell the truth even when it’s uncomfortable. Treat people with respect and go out of your way to do nice things for your teammates.

Salary.com Estimation for Senior Full Stack Engineer in York, NY
$134,426 to $163,829
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