C# Developer
Posted Today by 1774074752
Negotiable
Undetermined
Hybrid
London, United Kingdom
Summary: RED is looking for an experienced .NET Developer for a 6-month hybrid contract in London, requiring 3 days per week onsite. The role demands strong expertise in .NET development, AWS, and backend systems to support a project with complex technical requirements. Immediate availability is preferred for the successful candidate.
Key Responsibilities:
- Design, develop, test, and maintain applications using C# and .NET / .NET Core
- Build and support scalable backend services and APIs
- Design and implement solutions within AWS cloud environments
- Contribute to distributed systems and service-oriented architectures
- Design, develop, and optimize database structures, queries, and transactions
- Diagnose and resolve performance, scalability, and reliability issues across applications and databases
- Collaborate with technical and non-technical stakeholders to deliver robust solutions
- Participate in code reviews, testing, and best practice implementation
- Support architecture and technical design discussions
Key Skills:
- Strong commercial experience with C# and .NET / .NET Core
- Proven experience building enterprise backend applications
- Solid hands-on experience with AWS
- Strong understanding of distributed systems, scalability, and resilience
- Strong database experience, including schema design, SQL, optimization, and troubleshooting
- Experience building and consuming RESTful APIs
- Familiarity with microservices and integration patterns
- Experience with source control, CI/CD, and modern software engineering practices
- Strong communication and problem-solving skills
Salary (Rate): undetermined
City: London
Country: United Kingdom
Working Arrangements: hybrid
IR35 Status: undetermined
Seniority Level: undetermined
Industry: IT
RED is seeking an experienced .NET Developer on behalf of our client based in London for an initial 6-month contract to support a project with demanding technical requirements. This is a hybrid role based in London, requiring 3 days per week onsite, and we are looking for someone who can start immediately.
This position requires strong hands-on expertise in .NET development, combined with solid experience across AWS, distributed systems, and databases. The successful candidate will be comfortable working on complex backend systems and delivering reliable, scalable, production-grade solutions.
Key Responsibilities
-
Design, develop, test, and maintain applications using C# and .NET / .NET Core
-
Build and support scalable backend services and APIs
-
Design and implement solutions within AWS cloud environments
-
Contribute to distributed systems and service-oriented architectures
-
Design, develop, and optimize database structures, queries, and transactions
-
Diagnose and resolve performance, scalability, and reliability issues across applications and databases
-
Collaborate with technical and non-technical stakeholders to deliver robust solutions
-
Participate in code reviews, testing, and best practice implementation
-
Support architecture and technical design discussions
Required Skills and Experience
-
Strong commercial experience with C# and .NET / .NET Core
-
Proven experience building enterprise backend applications
-
Solid hands-on experience with AWS
-
Strong understanding of distributed systems, scalability, and resilience
-
Strong database experience, including schema design, SQL, optimization, and troubleshooting
-
Experience building and consuming RESTful APIs
-
Familiarity with microservices and integration patterns
-
Experience with source control, CI/CD, and modern software engineering practices
-
Strong communication and problem-solving skills
If this is something you are interested in, please send me an up-to-date CV and we can discuss the role in more detail. If you know someone who might be interested, please forward this advert their way
Reference
CR/132992_1774023619
Date
20 Mar 2026