About this opportunity
Syndesus lists this Senior Fullstack Engineer opportunity in new york, New York. Review the employer’s description below for duties, qualifications and application requirements.
Job description
About Our Client
Our client is a venture-backed, seed-stage company powering the next generation of wellness businesses with clinical infrastructure built for growth.
They’re building a platform that enables wellness businesses to offer clinical services they currently can’t provide on their own, including blood testing, prescriptions, and peptides, supervised by a clinical team. Think Shopify for wellness businesses.
The founding team has done this before: Harvard Business School MBAs and a second-time founder, alongside operators and executives who’ve taken startups through exits as founding-team members. They’re backed by top venture capital firms.
The tailwinds are massive: peptides going mainstream, GLP-1s unlocking the category, the longevity movement in full swing, and AI unlocking what wasn’t possible a year ago.
This is still an early team, which means every hire matters. You’d join at the ground floor, work directly with the founders, and be part of something rare: a company at the intersection of a massive market shift and the moment when AI is reshaping what small teams can build.
The Role
Our client is hiring a senior full-stack engineer to build their platform alongside the CTO and founders. This is a full-stack role with a front-end lean. You’ll spend most of your time crafting the consumer and partner-facing interfaces that operators and their clients touch every day, while still owning the backend work needed to ship features end-to-end.
You’ll work directly with the CTO, an experienced healthtech engineer who’s built and scaled products through multiple acquisitions and mentors engineers in a top AI Masters program. He’ll be your manager, your code reviewer, and your mentor.
What You’ll Do
Build the interfaces customers see and touch. Consumer, partner-facing, and clinician-facing portals that are polished, fast, and intuitive. UX matters here.
Own features end-to-end. From fuzzy problem (“operators want X”) to shipped product (the page, the API, the migration, the analytics), all of it.
Work full-stack , with most of your day in the front end and the rest in the backend services that power what you’re building.
Partner closely with the designer to ship polished UI. You care about the difference between “it works” and “it feels great to use.”
Leverage AI tooling throughout the SDLC. Write, review, and deploy with AI where it helps. Speed matters. So does quality.
" Work across a small cross-functional team ", includes clinical ops, product, design, and sales. No throwing things over the wall.
Engineer for simplicity. Bias toward minimal dependencies, boring technology where it matters, and architecture that scales without ceremony.
How We Work
Ship often. The team deploys daily, instruments what matters, and fixes forward.
Boring foundations, exciting features. Proven technology for the core so the team can experiment freely at the edges.
Customers first. Every decision starts with the operator, clinician, or consumer using what gets built.
Real ownership. You touch the whole stack and see the impact of your work in the business, fast.
Low ego. They hire people who care about the work, not the optics.
Requirements
Who You Are
4-7 years writing production software. Quality and ownership matter more than years.
Deep TypeScript and React/Next.js fluency. You’ve shipped complex, polished interfaces and think about component architecture, state management, performance, and accessibility.
Strong design sensibility. You can take a Figma file and ship something that feels exactly right, and push back when something could be better.
A modern typed backend language in production. You’re not a front-end specialist; you can build the API your front-end consumes.
API design experience (GraphQL, REST), schemas, contracts, versioning.
Comfortable with a cloud platform (GCP, AWS, or Azure) and infrastructure configuration.
A track record of owning features end-to-end, not just pieces.
Clear writing and strong async communication , which is critical for a small team moving fast.
High agency. You spot what needs to be built, scope it, build it, ship it. You don’t wait for a perfect spec.
Nice to Have
GraphQL at real scale (schema design, performance, tooling)
Animation libraries (Framer Motion, GSAP) or advanced CSS/Tailwind work
Design system experience, either building or maintaining one
Comfort with tracing, metrics, and structured logs
Why This Role
This is a founding-team-caliber seat at a seed-stage company with real momentum and one of the strongest tailwinds in healthtech. You’ll work directly with a CTO who’s built and scaled healthtech products through multiple acquisitions, founders with deep operating experience, and a team small enough that your decisions matter. You’ll own real product surface, not slivers.
If you want a front-row seat to building a company from the very early phases, this is that seat.
Logistics
Location: New York City (Midtown)
Schedule: Hybrid, 2-3 days in-office, remainder remote
Reports to: CTO
Compensation & Benefits
Base salary: $170,000 to $200,000, depending on experience
Equity: Meaningful founding-team equity grant
Health benefits: Medical, dental, and vision (100% covered)
Unlimited PTO
Commuter benefits
One Medical membership
Peloton Digital membership
Learning and development budget
$150 monthly reimbursement for the company’s products
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Worksite address
new york, NY, 10261, US
Who can apply
Review the original listing for work authorization, qualifications and employer requirements.