Senior Full Stack Software Engineer

Lyv is the infrastructure powering the next generation of wellness businesses.

We’re building a platform that enables wellness providers to offer clinical services they currently can’t provide on their own, including blood testing, prescriptions, and peptides, all supported by a clinical team.

Founded by Harvard Business School MBAs with prior experience across startups, technology, and clinical operations, Lyv is backed by top venture capital firms and is building at a rapid pace.

We’re still early, which means every hire matters. This is a chance to join at the ground floor, work directly with the founders, and accelerate your career by being part of a fast-growing startup.

We are hiring a full-stack software engineer to collaboratively own features end-to-end. We need someone who thinks holistically—balancing a great user experience with long-term engineering health. You should be comfortable moving from 'here’s a fuzzy problem' to 'it’s live and people love using it.' As we scale rapidly, you'll play a key role in evolving our foundational systems to support our next phase of growth

• Work full-stack in our core stack of React/TypeScript and Go.
• Leverage AI tooling throughout the SDLC. 
• Partner with a small cross functional team across clinical operations, product, design, and sales. 
• Contribute to our agentic fleet, giving agents the tools to resolve complex queries and automate repetitive tasks
• Engineer for simplicity, weigh architectural tradeoffs with a heavy bias toward simplicity and minimal dependencies.

• Hybrid in Midtown NYC:  Meaningful time together in the office (2-3 days/week), flexibility the rest of the week.
• Small team, real ownership: You touch the whole stack and see the impact of your work.
• Pragmatic: Ship often, instrument what matters, choose boring technology for the foundation to enable the fun/cutting edge feature
• Patients first: Every decision starts with the people using what we build.

• 3-7 years writing production software.

• Solid TypeScript + React/Next.js on the front end.
• A modern backend language in production — Go is great, but strong fluency in another typed language plus real interest in Go works too.
• Experience designing/working with APIs (GraphQL, REST) — schemas, contracts, versioning.
• Comfort with a cloud platform (GCP, AWS, or Azure) and configurations.
• A track record of owning features & services end to end, not just pieces.
• Clear writing and the ability to work closely with a small, cross-functional team.

• GraphQL at real scale — schema design, performance, tooling.
• Exposure to healthcare — FHIR, HIPAA, PHI or other regulated industries. 
• MongoDB experience especially with vector search and indexing.
• GCP specifics (Cloud Run, Pub/Sub, BigQuery, IAM, CloudHealthcare API).
• Comfort with tracing, metrics, structured logs.

• Competitive compensation: Strong salary + equity

• Health benefits: Medical, dental, and vision coverage
• Unlimited PTO
• Commuter benefits, learning budget, product stipend
• Mentorship: Work directly with experienced founders and our CTO who are invested in your growth
• Career growth: Opportunity to take on more responsibility and evolve into new roles over time
• Early-stage exposure: Be part of building a company from the ground up
• Collaborative culture: Small, low-ego team that values ownership and doing great work

If you’re someone who wants a front-row seat to building a company from the ground up—this is an incredible opportunity to do it.

Lyv is an equal opportunity employer. We are committed to building a diverse and inclusive team and welcome applicants from all backgrounds, experiences, and perspectives. We believe that diverse teams make better decisions, build better products, and create stronger companies.