Founding Full Stack Engineer in City of London
Founding Full Stack Engineer

Founding Full Stack Engineer in City of London

City of London Full-Time 100000 - 140000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Build and architect a core platform from scratch 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 scales and dynamic problem-solving.
  • Why this job: Take ownership of your work and make a real impact in a growing company.
  • Qualifications: 4+ years of fullstack development experience with 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
  • 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 City of London employer: Neulinx

At Neulinx, we pride ourselves on being an exceptional employer, offering a unique opportunity for a Founding Full Stack Engineer to take ownership of building our core product in a dynamic hybrid work environment near London Bridge. With competitive compensation, equity options, and a culture that fosters innovation and personal growth, you will collaborate closely with experienced founders to shape the future of healthcare and fintech through cutting-edge technology. Join us to make a meaningful impact while enjoying the perks of a startup atmosphere that values your contributions and encourages professional development.
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Contact Detail:

Neulinx Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Founding Full Stack Engineer in City of London

✨Tip Number 1

Network like a pro! Reach out to your connections in the tech and startup scene. Attend meetups, webinars, or even casual coffee chats. You never know who might have the inside scoop on that perfect Founding Fullstack Engineer role!

✨Tip Number 2

Show off your skills! Create a portfolio showcasing your projects, especially those related to healthcare, fintech, or AI. This is your chance to demonstrate your hands-on experience and problem-solving abilities, which are key for this role.

✨Tip Number 3

Prepare for technical interviews by brushing up on your fullstack skills. Practice coding challenges and system design questions. Remember, they’re looking for someone who can architect and build from scratch, so be ready to showcase your thought process!

✨Tip Number 4

Apply through our website! It’s the best way to ensure your application gets seen. Plus, we love seeing candidates who take the initiative. Don’t hesitate to follow up after applying; it shows your enthusiasm and commitment!

We think you need these skills to ace Founding Full Stack Engineer in City of London

Fullstack Development
Backend Expertise
Node.js
Frontend Skills
React
TypeScript
Architecting Applications
Scaling Applications
LLM-powered Applications
Production Systems Maintenance
Problem-Solving
Communication Skills
Startup Experience
High-Ownership Environment

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 this hands-on role. Remember, we want to understand your skills quickly!

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 Neulinx

✨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 ready to discuss your past projects and how you’ve used these tools to solve real problems.

✨Showcase Your Problem-Solving Skills

Prepare examples of how you've tackled challenges in previous roles, particularly in fast-paced environments. Highlight your bias towards shipping and iterating rather than just perfecting code — this is crucial for a startup!

✨Understand the Company’s Vision

Research the stealth-mode startup and its intersection with healthcare, fintech, and AI. Be prepared to discuss how your skills can contribute to their mission and what excites you about building their core product from scratch.

✨Communicate Clearly and Confidently

As a founding engineer, you'll need to shape the engineering culture. Practice articulating your thoughts clearly and be ready to engage in discussions about team structure and processes. Show that you’re comfortable in an unstructured environment!

Founding Full Stack Engineer in City of London
Neulinx
Location: City of London

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