Senior C# Engineer

JR United Kingdom; United Kingdom; Remote; GBP 50,000 - 90,000; Full time

Job summary

A forward-thinking company is seeking a Senior C# Developer to join a mission-driven team dedicated to building an innovative platform in the sustainable supply chain space. This role offers the chance to work on a greenfield project that aims to tackle pressing global challenges like deforestation and illicit trade through technology. You will have the autonomy to shape the product and its development, collaborating with a supportive team that values curiosity and ownership. If you are passionate about clean code and scalable systems, this opportunity is perfect for you.

Qualifications

• Strong experience in back-end development with C#.
• Solid understanding of building APIs and service-based architectures.

Responsibilities

• Build and maintain performant, scalable, and maintainable services.
• Design and implement REST APIs for the new platform.

Skills

C#

API Development

Service-based Architecture

Clean Code Practices

Collaboration

Tools

PostgreSQL

AWS

Job description

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? Remote-first | Optional office space in London

? Full-time | Permanent

About the Role

We're looking for a Senior C# Developer to join a small, collaborative, and mission-driven team building a new platform in the sustainable supply chain space. This is an exciting opportunity to get involved at the ground level of a greenfield project that’s aiming to make a real-world impact — tackling challenges like deforestation and illicit trade through innovative technology.

As part of a distributed team across Europe, you’ll play a key role in designing and developing a scalable, secure system from the ground up. You won’t just be handed tickets — you’ll have the autonomy to help shape the product and the way we build it.

What you’ll do

1. Build and maintain performant, scalable, and maintainable services
2. Design and implement REST APIs
3. Contribute to architecture, tooling, and best practices
4. Collaborate closely with a small, supportive team that values curiosity, kindness, and ownership

What we’re looking for

• Strong experience with back-end development in C#
• A solid understanding of building APIs and service-based architectures
• A passion for clean, maintainable, and efficient code
• A collaborative mindset and willingness to get involved in product discussions

Nice to have

• Experience with PostgreSQL or similar relational databases
• Exposure to DevOps practices and AWS or other cloud platforms