C# Developer

Summary: Our international client seeks a C#/.NET Developer with banking industry experience for an 18-month freelance B2B contract, offering a hybrid working arrangement of three days on-site in Belfast. The role requires strong backend development skills in C# and .NET, along with experience in cloud environments and microservices. Candidates should be prepared for a high chance of contract extension. This position emphasizes collaboration and technical expertise in a dynamic environment.

Key Responsibilities:

• Develop backend solutions using C# and the .NET framework, particularly .NET 9.
• Build and consume ASP.NET Core Web APIs.
• Work within a major cloud environment, preferably AWS.
• Utilize NoSQL databases, specifically DynamoDB.
• Apply microservice architecture principles in development.
• Implement containerization using Docker and manage CI/CD pipelines.

Key Skills:

• Professional experience in backend development with C# and .NET.
• Experience with ASP.NET Core Web APIs.
• Familiarity with AWS cloud services.
• Knowledge of NoSQL databases, especially DynamoDB.
• Understanding of microservice architecture.
• Experience with Docker and CI/CD processes.

Salary (Rate): undetermined

City: Belfast

Country: United Kingdom

Working Arrangements: hybrid

IR35 Status: undetermined

Seniority Level: undetermined

Industry: IT

Detailed Description From Employer:

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Our international client is looking for a C#/.NET Developer with experience working in the Banking industry to join their team for a freelance B2B contract that is 18 months with a high chance of extension. This position is hybrid, being 3 days a week on-site in Belfast.

Project details

• Position: C#/.NET Developer
• Contract type: Freelance B2B.
• Contract Length: 18 Months+ Ext
• Location: Hybrid in Belfast(3 days on-site)
• Languages: English

Skills and responsibilities

• Strong professional experience in backend development with C# and the .NET framework, with specific experience or knowledge of .NET 9.
• Proven experience building and consuming ASP.NET Core Web APIs.
• Experience working in a major cloud environment (AWS is highly preferred)
• Practical experience with NoSQL databases, specifically DynamoDB.
• Solid understanding of microservice architecture principles.
• Familiarity with containerisation (Docker) and CI/CD pipelines.

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. Otherwise, what is it you're looking for? If you know someone who might be interested, please forward this advert their way

Reference
CR/131432_1766076031

Date
18 Dec 2025

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