C# Developer / .NET Developer
Back end developer/.NET/C#/ASP.NET Core/.NET10
This is one of those roles that doesn't come around often.
You'd be joining at the perfect time - this is a brand-new position, working in a tight knit team of 5 within a wider engineering function of 17. The focus? Building new systems from the ground up, not maintaining legacy or churning through BAU tickets.
If you enjoy greenfield work, shaping how things are built, and having real input into architecture and tech decisions - this is very much that kind of opportunity.
The role
You'll be designing and building modern, scalable microservices using the latest .NET stack, working across a mix of:
- gRPC services (high-performance internal comms)
- REST APIs (external integrations)
- GraphQL middleware (flexible data access layer)
There's a strong focus on clean architecture and good engineering practices, so you'll be working with patterns like SOLID, CQRS and DDD - not just coding, but building things properly.
What you'll be doing
- Designing and developing microservices with .NET / ASP.NET Core
- Building APIs using gRPC, REST and GraphQL
- Contributing to system design and technical decisions
- Working with SQL Server / MySQL via EF Core
- Implementing secure, scalable, and resilient services
- Collaborating closely with a small, experienced team
What we are looking for
- Strong C# / .NET (ASP.NET Core) experience
- Experience building microservices or distributed systems
- Solid API experience (REST essential, gRPC/GraphQL a bonus)
- Good understanding of software design principles (SOLID, etc.)
- Experience with SQL databases and EF Core
Nice to have
- Docker / containerisation
- GraphQL (Hot Chocolate, Green Donut)
- OAuth2 / JWT / SSO experience
- Exposure to cloud or Linux environments
This is a hybrid role with just one day a week in the office, but you can choose to go in more often should you prefer. For further details and to apply, please send your CV to jon.brass @ Circlerecruitment.com
Circle Recruitment is acting as an Employment Agency in relation to this vacancy. Earn yourself a referral bonus if you refer somebody else who fills the role! We also offer an iPad if you refer a new client to us and we recruit for them. Follow us on Facebook - Circle Recruitment , Twitter - @Circle_Rec and LinkedIn - Circle Recruitment.
