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

Ashdown Group; United Kingdom; Remote; GBP 77,000 - 94,000; Full time

Job summary

Ashdown Group is seeking a Senior .NET Developer to join a dynamic team. This fully remote role requires strong C#/.NET expertise, API design, and experience with distributed systems within an Agile environment. Candidates with energy or utilities sector exposure will be preferred.

The role focuses on shaping technical standards, mentoring peers, and delivering high-volume, secure transaction systems while maintaining scalable architectures.

Qualifications

• 5+ years of commercial experience with .NET and C#.
• Experience building APIs, services and distributed systems.
• Familiarity with CI/CD pipelines and Git-based workflows in Agile environments.
• Energy or utilities sector experience is a plus.

Responsibilities

• Design and develop complex features using modern .NET (C#).
• Translate business and regulatory requirements into robust technical solutions.
• Collaborate with Product Owners to refine, size and estimate work.
• Participate in sprint planning and story point estimation.
• Lead technical investigations and resolve production issues.
• Review 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 and engineering standards.

Skills

C#/.NET

API development

Distributed systems

CI/CD pipelines

Git workflows

Agile methodologies

Tools

Git

CI/CD

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.