Snr C#.Net Developer – Entity, AWS, Claude – 3 Months

Company: Jump IT Recruitment Solutions Limited
Apply for the Snr C#.Net Developer – Entity, AWS, Claude – 3 Months
Location: London
Job Description:

.Net 6, .Net 10, C#, ASP.NET, .NET Core, AWS, CDK, IaC, Cognito, S3, KMS, CI/CD, Docker, Containers, Entity, Firebase

3-month contract role. Outside IR35.

To start 1st June 2026

£500 per day.

Must be a UK based candidate.

No visa sponsorship or visa transfer.

Experience within Healthcare, Pharma or Life Sciences is a definite advantage.

The role will involve the following:

  • Migrate the platform to .NET 10 LTS
  • Implement secrets management using AWS Secrets Manager
  • Strengthen authentication and authorisation mechanisms
  • Enhance audit trail and compliance features for healthcare regulations
  • Improve API security, including rate limiting and CORS configuration
  • Update Docker containers and CI/CD pipelines
  • Establish and expand unit and integration test coverage
  • Work with Clean Architecture patterns across the solution

Good experience across C#, ASP.NET Core, Migrations, Enitity, OWASP, AWS services, CI/CD.

Claude experience expected.

To start ASAP.

Please email a CV to Roger at Jump IT in the first instance.

Posted: May 28th, 2026