Founding Full Stack Engineer

Founding Fullstack Engineer

Hybrid – 2–3 days/week in London (near London Bridge)

£100k–£140k + great equity + startup perks

Neulinx is hiring on behalf of a stealth-mode startup operating at the intersection of healthcare, fintech, and AI. We’re looking for a Founding Fullstack Engineer to help build their core product from scratch. This is the startup’s first technical hire — an opportunity for someone who wants full ownership, fast pace, and real impact.

You’ll work directly with the technical founder (ex-healthtech scaleup) to design, build, and ship the MVP. It’s a hands-on engineering role now, with a clear path to a leadership position as the company grows.

What You’ll Do

• Architect and build the core platform — backend, frontend, infrastructure
• Own scalability, performance, security, and deployment
• Architecting and scaling LLM-powered applications
• Work side-by-side with product and ops to solve meaningful problems fast
• Shape engineering culture, processes, and future team structure

What We’re Looking For

• 4+ years of fullstack development experience, ideally in startups or product-led teams
• Strong backend expertise, especially with Node or Node
• Solid frontend skills — React, TypeScript
• Proven experience building and maintaining production systems
• Bias toward shipping, iterating, and solving problems — not just perfecting code
• Experience in architecting and scaling LLM-powered applications desirable
• Strong communicator who’s comfortable in an unstructured, high-ownership environment

Nice-to-Haves

• Background in fintech, healthtech, or AI-powered products
• Experience working with LLMs, chat interfaces, or emerging AI tools

Why It’s a Unique Opportunity

• You’ll own the build — from architecture to first users
• You’ll solve real-world complexity in healthcare and finance
• You’ll have early equity in a venture with long-term growth potential

If you're a fullstack engineer who wants to help launch something meaningful — and own a big piece of the journey — reach out via Neulinx to learn more or apply.