At a Glance
- Tasks: Build and architect a core platform in a fast-paced startup environment.
- Company: Stealth-mode startup at the intersection of healthcare, fintech, and AI.
- Benefits: Competitive salary, equity, and exciting startup perks.
- Other info: Opportunity for leadership as the company grows and dynamic work culture.
- Why this job: Take ownership of your work and make a real impact from day one.
- Qualifications: 4+ years of fullstack development experience, strong backend and frontend skills.
The predicted salary is between 100000 - 140000 € per year.
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.
Founding Full Stack Engineer in London employer: LinkedIn
Neulinx offers an exceptional opportunity for a Founding Full Stack Engineer to join a stealth-mode startup at the forefront of healthcare, fintech, and AI. With a hybrid work model in London, employees benefit from a dynamic work culture that fosters innovation and ownership, alongside competitive compensation, equity options, and the chance to shape the engineering landscape from the ground up. This role not only promises personal growth and leadership potential but also allows you to make a tangible impact on real-world challenges.
StudySmarter Expert Advice🤫
We think this is how you could land Founding Full Stack Engineer in London
✨Tip Number 1
Network like a pro! Reach out to people in your industry, especially those in startups or tech roles. Attend meetups or online events to connect with potential employers and get the inside scoop on job openings.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your projects, especially those that highlight your fullstack expertise. This is your chance to demonstrate your ability to build and ship products, which is exactly what startups are looking for.
✨Tip Number 3
Be proactive! Don’t just wait for job postings; reach out directly to companies you admire. Express your interest in their work and how you can contribute as a Founding Fullstack Engineer. A personal touch can make all the difference.
✨Tip Number 4
Apply through our website! We’re all about making connections, so don’t hesitate to submit your application directly. It shows initiative and gives us a chance to see your enthusiasm for the role right away.
We think you need these skills to ace Founding Full Stack Engineer in London
Some tips for your application 🫡
Show Your Passion:When writing your application, let your enthusiasm for the role shine through. We want to see that you’re genuinely excited about building something impactful in healthcare and fintech. Share why this opportunity speaks to you!
Tailor Your Experience:Make sure to highlight your relevant experience in fullstack development, especially with Node and React. We’re looking for someone who can hit the ground running, so connect your past projects to what we’re doing at StudySmarter.
Be Clear and Concise:Keep your application straightforward and to the point. We appreciate clarity, so avoid jargon and focus on what makes you a great fit for the role. Remember, we’re looking for strong communicators!
Apply Through Our Website:Don’t forget to submit your application through our website! It’s the best way for us to keep track of your application and ensure it gets the attention it deserves. We can’t wait to hear from you!
How to prepare for a job interview at LinkedIn
✨Know Your Tech Stack Inside Out
Make sure you’re well-versed in the technologies mentioned in the job description, especially Node, React, and TypeScript. Be prepared to discuss your past projects and how you've used these technologies to solve real problems.
✨Showcase Your Problem-Solving Skills
Since this role involves building a core product from scratch, be ready to share examples of how you've tackled challenges in previous roles. Highlight your bias towards shipping and iterating rather than just perfecting code.
✨Understand the Startup Culture
Familiarise yourself with the startup environment, especially in sectors like healthcare and fintech. Be prepared to discuss how you can contribute to shaping the engineering culture and processes as the company grows.
✨Communicate Clearly and Confidently
As a founding engineer, you'll need to work closely with the technical founder and other teams. Practice articulating your thoughts clearly and confidently, especially when discussing complex technical concepts or your vision for the product.
