.NET C# Developer [UK] UK UK

Spyro Soft; United Kingdom; Remote; GBP 40,000 - 60,000; Full time

Job summary

A leading technology firm is seeking a C# Developer to contribute to a project creating a comprehensive digital map of underground assets in the UK. This fully remote position involves working with a team to develop data pipelines, backend services, and applications crucial for decision-making in government and industry. Candidates must possess 4+ years of C# development experience and a strong collaborative mindset, with mandatory Security Clearance.

Qualifications

• 4+ years of development experience with C#.
• Strong communication and collaborative team mindset.
• Proven track record delivering complex, high-quality web applications.

Responsibilities

• Develop and maintain applications using C#, .NET, and related technologies.
• Design and implement RESTful APIs and microservices.
• Participate in the full software development lifecycle.

Skills

C#

RESTful APIs

Microservices

Debugging

Tools

.NET

Job description

We are looking for a C# Developerto join a team working for our UK-based client - the national mapping agency for Great Britain and a global leader in geospatial data and digital mapping solutions. You will be part of a project focused on building a comprehensive digital map of underground assets in the UK, contributing to the development of data pipelines, backend services, and a frontend application that support critical decision-making across government and industry.

Responsibilities:

• Develop and maintain applications using C#, .NET (Core/Framework), and related technologies.
• Design and implement RESTful APIs, microservices, and backend logic.
• Participate in the full software development lifecycle, including requirements gathering, design, coding, testing, and deployment.
• Write clean, scalable, and maintainable code following best practices and SOLID principles.
• Collaborate with front-end developers, QA engineers, DevOps, and product teams.
• Troubleshoot, debug, and optimize application performance.
• Contribute to code reviews, technical documentation, and agile ceremonies (e.g., stand-ups, sprint planning).

Requirements:

• 4+ years of development experience with C#
• Proven track record delivering complex, high-quality web applications
• Strong communication and collaborative team mindset

Contract details:

• Start Date: September 2025
• Contract Length: 18 months
• Security Clearance Certificate is mandatory

Location:

Fully remote within the UK, with potential business trips to Southampton every 4–6 weeks.