Mid level c# Software Developer

As part of a major technology growth programme, the Belfast office is hiring mid level .NET Software Developers to shape next-generation trading systems and deliver large-scale engineering solutions. What you'll do Develop, enhance, and maintain complex systems using C# (.NET Core) and SQL Build scalable, cloud-native solutions on AWS Collaborate closely with Architects and QA Engineers to ensure robust, testable, and high-quality delivery Take part in architectural discussions and CI/CD pipelines Mentor teammates, contribute to code reviews, and promote engineering best practices

Strong hands-on experience in C# (.NET Core) Knowledge of modern frontend frameworks (ideally React) Proficiency with Microsoft SQL Server or similar databases Experience with cloud technologies like AWS or Azure Agile mindset with experience working in collaborative teams Financial services knowledge is beneficial but not essential

Modern practices: CI/CD, AWS-first, containerised deployments, cross-functional squads, and a brand-new strategic partnership with AWS. Career growth: Structured career paths into architecture, leadership, and platform ownership. Scale & stability: The speed and autonomy of a modern tech hub with the security of a global business. Strategic investment: Following recent acquisitons, Belfast is central to delivering next-generation trading solutions. What to expect working here Hybrid working model - 3 days onsite in Belfast Competitive salary + annual performance bonus Private healthcare and enhanced pension Global exposure - work with teams in London, Paris, New York Learning budget, training, and mentorship opportunities Inclusive, innovative culture with low attrition

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.