C# .NET Software Developer

Home Careers C# .NET Software Developer (Full time or Part time)

We have a great opportunity for a C# .NET Software Developer to join our fantastic software development team based in Cambridge. This is an ideal role for someone who wants to join a friendly, small and highly technical team where you can have a real impact.

You will be embedded as a full-stack developer in one of our small agile development teams. You will collaborate alongside product owners, testers and other developers to develop features for our power-scheduling software product.

Our view of agile software development is inspired by eXtreme Programming rather than Scrum. We focus more on the technical practices that enable agility, such as TDD, Pair Programming, SOLID, Simple Design etc. but we do find some of the rituals useful, such as Daily Stand‑ups and Retrospectives.

Our power‑scheduling system includes a web application, windows services and APIs that provide comprehensive coverage of the European power markets and simplify complex B2B communication protocols and data formats, making it easier for users to manage their portfolios.

Our products are used by GMSL’s own operations team to serve a wide range of clients, including banks, energy firms, and traders. Customers also license the software for use by their own operations teams.

We use the following tech stack:

• C# – .NET8 (though moving to .NET
  10 soon).
• Entity Framework Core
• SQL Server
• You will need to be great at thinking logically, but also laterally.
• You make pragmatic choices when implementing changes.
• You must be able to communicate your thoughts well.
• You should enjoy collaborating with others and relish solving challenging problems.
• You actively listen and provide thoughtful solutions

We are keen to hear from individuals that meet some (or all!) of the following:

• Experience designing and consuming RESTful APIs according to best practices
• Knowledge of hosting environment configuration, authentication & certificate management
• Thorough understanding of MVC patterns such as MVVM
• Good working knowledge of JS, CSS + HTML
• C#
  • Architecting modern solutions to replace existing functionality
  • Refactoring a complex codebase according to SOLID principles & design patterns
• SQL Server
  • Experience investigating performance issues including index tuning
• CI/CD
  • Implementing modern CI/CD pipelines in place of legacy build & deployment processes

• You will have a minimum of five years development experience using C# & .NET in a commercial environment.
• Experience in enterprise product development would be particularly relevant to our business.
• You will be comfortable working in an agile environment. Experience of any eXtreme Programming practices that are key to being agile, such as TDD, Pair Programming, SOLID, Simple Design would also be beneficial.

The C#.Net Software Developer is offered on a permanent basis, full time (37.5 hours per week Monday to Friday) or part-time (minimum 30 hours per week worked over 5 days Monday to Friday).

Salary will be reflective of your level of experience and adjusted pro‑rata for part‑time candidates.

We offer hybrid and homeworking options, depending on the requirements of the role and the needs of your team.

All our teams spend at least one day a week in our offices in Cambridge, this role requires 2‑3 days a week in office, so you need to be based within easy travel to Cambridge.

We welcome applications for flexible working arrangements.

Our benefits include:

• Company pension scheme (6% employer contribution)
• Flexible working hours and remote working
• Casual dress and a relaxed environment
• Employee assistance program
• Cycle to Work scheme
• Fresh fruit and great coffee
• Free access to Cambridge University Botanic Gardens
• Monthly team pub lunches

• Simply email us your CV and covering letter to  with the reference ‘C#.Net Software Developer’ and should your CV be shortlisted, we will share with you some screening questions to help us evaluate your technical expertise.
• So we can support you during the application and interview process, please  for any recruitment adjustments.
• GMSL have a responsibility to ensure…