SaaS | Early-Stage Start-Up | Experienced Founders | C# | .NET | TypeScript | React | Azure | AI
I’m hiring a Full Stack Software Engineer . This is a rare opportunity to work directly with proven founders on an early-stage product with huge potential. They’re rebuilding the infrastructure of a legacy industry from the ground up – no silos, no red tape. While technical skill sets are important, we are more focused on attitude so we are open to Mid – Senior level engineers.
Working Policy: Onsite full‑time – it's early stage, and the team gets massive value from in‑person collaboration.
Salary: £75,000 – £120,000 (depending on experience) + meaningful equity – it’s a brilliant time to join. We are looking for strong Mid – Senior level engineers.
Interview Process: 3 stages. We keep things fast, focused, and respectful of your time.
You’ll be a Full Stack Software Engineer in a small, fast‑paced team, working across frontend and backend to ship real features using C#, .NET, React, and Azure . You must be confident across the stack – this role offers real autonomy and end‑to‑end ownership. They use AI in their daily workflows and in the product itself.
This isn’t just an engineering role. You’ll be actively involved in commercial decisions, product strategy, and user conversations – not just handed tickets.
- Mid–Senior Full Stack Software Engineers – while we don’t fixate on years, 2+ years’ experience is typically what we expect. We need engineers to hit the ground running.
- Strong across C#, .NET, and React
- Passionate about building great products users actually love. Experience in FinTech or B2B SaaS would be highly advantageous but it’s not essential.
- Experience building 0 – 1 – this is key.
- Experience using AI tools.
- Excited by early‑stage, in‑office startup life.
- Hungry to build something with lasting impact.
You’ll work closely with founders, shaping both product and business from the inside. If you’re a Full Stack Software Engineer who wants real ownership, fast learning, and to build with C#, .NET, React, and Azure – apply now.
#J-18808-LjbffrFull Stack Engineer | C#, .NET, TypeScript, React in London employer: Wilson Brown
Wilson Brown is an exceptional employer for those seeking a dynamic and innovative work environment. As a small, fast-paced startup, we foster a culture of collaboration and hands-on ownership, allowing you to make a real impact on product development while working closely with founders. With opportunities for rapid personal and professional growth in the exciting FinTech/B2B SaaS space, our team thrives on creativity and agility, making it a rewarding place to advance your career.
