Full Stack Engineer | C#, .NET, React

JR United Kingdom; Luton; On-site; GBP 70,000 - 100,000; Full time

Job summary

A dynamic early-stage startup is seeking a Full Stack Software Engineer to rebuild the infrastructure of a legacy industry. This opportunity offers autonomy, involvement in business decisions, and the chance to work with technologies such as C#, .NET, React, and Azure in a collaborative team environment.

Qualifications

• Typically 3+ years of experience in Full Stack development.
• Strong skills in C#, .NET, and React.
• Experience in FinTech or B2B SaaS is advantageous but not essential.

Responsibilities

• Work across frontend and backend technologies to deliver real features.
• Participate in commercial decisions, product strategy, and user engagement.
• Contribute to building impactful products with lasting value.

Skills

C#

.NET

React

Job description

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Full Stack Engineer | C#, .NET, React, Luton, Bedfordshire

Client: Wilson Brown

Location: Luton, Bedfordshire, United Kingdom

Job Category: Other

EU work permit required: Yes

Job Views:

3

Posted:

07.06.2025

Expiry Date:

22.07.2025

Job Description:

Full Stack Software Engineer

SaaS | Early-Stage Start-Up | Experienced Founders | C# | .NET | TypeScript | React | Azure

I’m hiring a Full Stack Software Engineer to join a highly ambitious and talented team. This is a unique opportunity to work directly with proven founders on an early-stage product with significant potential. They are rebuilding the infrastructure of a legacy industry from scratch, emphasizing collaboration and innovation.

Location: London

Working Policy: Onsite full-time, as the team benefits greatly from in-person collaboration due to the early stage of the project.

Salary: Up to £100,000 (depending on experience) + meaningful equity, making it an excellent time to join.

Interview Process: 3 stages, designed to be fast, focused, and respectful of your time.

You will be a Full Stack Software Engineer in a small, dynamic team, working across frontend and backend technologies to deliver real features using C#, .NET, React, and Azure. Confidence across the full stack is essential, as the role offers autonomy and end-to-end ownership.

This role involves more than just engineering; you'll participate in commercial decisions, product strategy, and user engagement, rather than just executing tickets.

• Mid–Senior Full Stack Software Engineers: typically 3+ years of experience, ready to contribute immediately.
• Strong skills in C#, .NET, and React
• Passion for building products that users love. Experience in FinTech or B2B SaaS is advantageous but not essential.
• Excited about early-stage startup life and working in an in-office environment.
• Motivated to build impactful products with lasting value.

You'll work closely with founders, influencing both product development and business strategy. If you're a Full Stack Software Engineer seeking ownership, rapid learning, and the opportunity to build with C#, .NET, React, and Azure, apply now.