Full Stack Engineer | C#, .NET, React

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

Job summary

Join a leading early-stage startup as a Full Stack Software Engineer in Sheffield, working with C#, .NET, React, and Azure. This role offers an exciting opportunity to contribute to an innovative product with experienced founders. You'll be deeply involved in product strategy, offering autonomy and the chance to make a real impact.

Qualifications

• 3+ years experience in software development.
• Strong skills in C#, .NET, and React.
• Passionate about product development and user experience.

Responsibilities

• Work across frontend and backend with confidence.
• Participate in product strategy and commercial decisions.
• Influence both product and business strategies.

Skills

C#

.NET

React

Azure

Job description

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Full Stack Engineer | C#, .NET, React, Sheffield, South Yorkshire

Client: Wilson Brown

Location: Sheffield, South Yorkshire, 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 talented and ambitious team. This is a unique opportunity to work directly with proven founders on an early-stage product with significant potential. The company is rebuilding a legacy industry’s infrastructure from scratch, emphasizing collaboration without silos or red tape.

Location: Sheffield

Working Policy: Onsite full-time. Early-stage startup environment benefits from in-person collaboration.

Salary: Up to £100,000 (dependent on experience) + meaningful equity. A great 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 working across frontend and backend with C#, .NET, React, and Azure. The role requires confidence across the stack, offering autonomy and end-to-end ownership.

This role involves more than just engineering; you'll participate in commercial decisions, product strategy, and user discussions, not just task execution.

• Mid–Senior Full Stack Software Engineers: typically 3+ years of experience, ready to contribute immediately.
• Strong skills in C#, .NET, and React
• Passionate about creating products users love. FinTech or B2B SaaS experience is advantageous but not essential.
• Enthusiastic about early-stage startup life in an office setting.
• Driven to build impactful solutions.

You will work closely with founders, influencing both product and business strategies. 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.