Senior Software Engineer

Founding Principal Engineer, Series B HealthTech Start-Up, Paediatric Mental Health (Full-Stack)New York, NY (Hybrid, 3 days in office)I’m working with a Series B health tech company that is rebuilding paediatric mental health care from the ground up. One in five children in the US has a diagnosable mental health condition, and around half never get care. The company runs a modern clinic for children and families that combines a digital platform, in-person clinics and telehealth. It is already live with patients and has recently raised its Series B.This is their first onshore engineering hire. You’ll work directly alongside the CEO and set the technical foundation for the company. This is a hands-on IC role, not a management one.The RoleYou’ll write production code on the hardest problems and own the architecture across telehealth, the EHR, the patient dashboard and AI adoption. There are no detailed PRDs. You’ll turn clinical, growth and operations needs into technical plans and make product decisions yourself.Typical work includes:Building and owning systems end to end, from requirements through to UIWorking directly with the CEO to scope, prioritise and ship productWorking with the existing offshore engineering team and setting standards for code review and qualityDriving AI adoption across the product and the wider organisationMaking clear calls on what to build, what to buy and what not to build at allTech StackTypeScript, React, Node.js, AWS, with AI and LLM integrations.What they’re looking for6 to 15 years of full-stack engineering experience, currently working at Staff or Principal levelRecent experience as a founding or very early engineer at a venture-backed start-up, ideally within the first five engineersProduction full-stack TypeScript, with ownership across frontend and backendStrong product instincts, with a track record of shipping features that made a real difference for usersExperience in a regulated environment such as healthcare, HIPAA or fintechA real interest in healthcare and the problem the company is solvingExperience working with offshore or distributed teams and hands-on AI work in production are both a plusThe OpportunityBe the first in-house engineer and define how engineering is built from day oneWork side by side with the CEO on a mission-driven product with real patients$200,000 to $250,000 base plus equityHybrid, with 3 days a week in the office in New York CityOpen to OPT or H1B transfers, but unable to offer new visa sponsorship