.Net Software Developer - Remote - £85,000 - Energy

Ashdown Group; Staines-upon-Thames; Remote; GBP 77,000 - 94,000; Full time

Benefits offered by this job

Fully remote

Job summary

Ashdown Group is seeking a Senior .NET Developer to join a dynamic tech team working on high‑volume, secure APIs and distributed systems. The role is fully remote and requires strong C# expertise; energy/utilities sector experience is preferred.

You’ll design and implement complex features, collaborate with Product Owners, and contribute to CI/CD pipelines while mentoring peers and driving engineering standards across the team.

Qualifications

• 5+ years of commercial .NET/C# experience.
• Experience building APIs and distributed systems.
• Experience with CI/CD and Git workflows in Agile environments.

Responsibilities

• Design and develop complex features using modern .NET (C#).
• Translate business and regulatory requirements into robust technical solutions.
• Refine, size and estimate work with Product Owners.
• Contribute to story pointing, estimation and sprint planning.
• Lead technical investigations and resolve production issues.
• Review peer code for maintainability, performance and security.
• Contribute to CI/CD pipelines and release automation.
• Support secure integrations using certificate-based authentication.
• Drive continuous improvement in quality, automation and standards.

Skills

.NET

C#

APIs

Distributed systems

Agile

Tools

CI/CD pipelines

Git workflows

Job description

Senior .Net Developer - £85,000 - Fully remote

Software Developer, Software Engineer - C# .Net - Energy

Please note - to be considered for this role you MUST have previous experience within the energy or utilities sector.

A highly successful and rapidly growing tech business are looking for a Senior .NET Developer to join their Agile delivery team building and evolving secure, high-volume transaction systems. This is a hands-on senior engineering role where you’ll design and deliver complex features, shape technical standards, and help ensure systems remain secure, scalable and resilient. If you enjoy solving difficult technical problems, working with modern engineering practices, and mentoring others while staying close to the code then this role is for you.

Key responsibilities of this Senior Software Developer role will include:

• Designing and developing complex features using modern .NET (C#)
• Translating business and regulatory requirements into robust technical solutions
• Working closely with Product Owners to refine, size and estimate work
• Contributing actively to story pointing, estimation and sprint planning
• Leading technical investigations and resolving complex production issues
• Reviewing peer code to ensure maintainability, performance and security
• Contributing to CI/CD pipelines and release automation
• Supporting secure integrations using certificate-based authentication
• Driving continuous improvement in quality, automation and engineering standards

The ideal candidate will have 5+ years commercial experience with .NET and C# and strong experience building APIs, services and distributed systems. Experience working with CI/CD pipelines and Git-based workflows with a Agile environment is an advantage.

This is a brilliant opportunity to join a dynamic business where you will be able to work on technically complex, real-world systems, influence architecture and engineering standards and work as part of a collaborative team.

The salary on offer is up to £85,000 plus benefits.