Principal .Net Developer

As Principal .NET Developer, you'll take ownership of the technical direction across key projects; architecting, designing, and delivering high-quality, cloud-based applications. You'll guide and support development teams, champion engineering best practice, and ensure solutions are secure, scalable, and built to last. Working closely with clients and internal stakeholders, you'll play a central role in shaping technical outcomes and ensuring projects are delivered to a consistently high standard., * Lead the design, development, and delivery of complex software solutions for new and existing customers

• Define and maintain coding standards, architectural principles, and quality benchmarks
• Mentor and support developers, encouraging knowledge sharing and technical excellence
• Conduct code reviews and promote secure development practices
• Identify technical risks and shape effective mitigation strategies
• Drive continuous improvement across engineering tools, processes, and workflows
• Stay informed of emerging technologies and recommend adoption where appropriate
• Communicate clearly with clients, stakeholders, and cross-functional teams
• Support recruitment, onboarding, and development of technical team members
• Contribute to estimation, planning, and resource management
• Ensure alignment with internal methodologies, governance, and quality standards
• Participate in post-project reviews and share learnings across the team

• Significant commercial software development experience, including 2+ years in a senior, lead, or principal role
• Proven experience designing and delivering complex technical solutions across public and/or private sectors
• Deep expertise in C#, .NET, and modern JavaScript/TypeScript frameworks
• Strong understanding of cloud platforms (Azure or AWS) and cloud-native architectures
• Excellent problem-solving, analytical, and debugging skills
• Experience with secure coding and application security
• Strong organisational skills with the ability to prioritise effectively
• Confident communicator with proven stakeholder engagement experience
• Experience working within Agile/Scrum environments
• Proficiency with development tools such as Git, DevOps tooling, Jira, and CI/CD pipelines, Software Developer Software Engineer .Net developer C# .Net

Salary circa £70,000, plus a competitive benefits package including bonus, private medical cover, and enhanced pension contributions.

To speak in absolute confidence about this opportunity, please send an up-to-date CV via the link provided or contact Djay Erskine, Specialist IT Recruitment Consultant, at MCS Group

Muse Group

Muse Group empowers music makers. We create the world’s most popular content, apps and platforms for playing, recording and composing music.

Through our expansive music catalogs, educational expertise, innovative learning tools and free open-source software, we make it easier for millions — from beginners to experienced musicians — to be creative every day. 

The Muse community is now over 400 million strong. And we’re just getting started. 

Our future vision is of a world with over a billion music makers — and we have a drive to expand our influence into other creative spaces too.

What do we make?

We make essential resources for all kinds of creatives, from performers to podcasters. Learn more about the leading Muse Group products here.

Who are we?

Muse Group began life as Ultimate Guitar, the largest online global community of musicians. Eugeny Naidenov founded Ultimate Guitar in 1998, with a dream to make it easy for guitarists to play songs by Guns ‘N’ Roses and his other favorite rockers. From there, the site grew from a plucky, tab-sharing trailblazer into a global leader of online music publishing. 

In 2017, Ultimate Guitar acquired MuseScore, expanding its reach into sheet music. Muse Group has only continued to grow from there — and now includes Audacity, StaffPad and many more. 

In 2023, Muse Group acquired Hal Leonard, the legendary global sheet music publishers, adding an unparalleled music catalog and educational expertise to the team.

Today, we are an international, visionary team of creatives, music lovers and audio obsessives, developing products we could not live without.