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Senior .NET Migration Engineer

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Orbis Consultants

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Location:
United Kingdom , London

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

250000.00 GBP / Year
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Job Description:

Critical Hedge Fund Migration – Senior .NET Migration Engineer. I’m working with a large Hedge Fund who are looking for a Senior .NET Migration Engineer for a 6-month rolling FTC to join a small, focused team and help deliver this migration successfully. This is a New York City–based role with a strong preference for 3 days per week in-office. The ideal candidate has led or contributed meaningfully to previous .NET migrations, and understands both the challenges and the opportunities that come with evolving a legacy codebase into a more modern stack. There’s no need for financial services experience – what matters most is a solid track record of migrating real-world systems across .NET platforms, and a sharp eye for both quality and scalability.

Job Responsibility:

  • Taking technical ownership of major parts of the migration from .NET Framework on Windows to .NET Core running on Kubernetes
  • Refactoring, rewriting, and modernising legacy codebases for performance, reliability and maintainability
  • Supporting containerisation efforts with Docker and Helm, targeting deployment into Kubernetes
  • Working within the client’s CI/CD environment (TeamCity, Octopus Deploy, GitHub Actions) to support seamless integration of new components
  • Advising on architectural best practices during the migration process, and helping mentor internal team members where needed

Requirements:

  • Deep experience with both .NET Framework and .NET Core, and demonstrable experience migrating between the two
  • Strong hands-on knowledge of Entity Framework, including the differences and pitfalls when porting to .NET Core
  • Practical experience with ASP.NET in legacy and modern contexts
  • Solid skills with Kubernetes, Docker, and Helm – ideally having deployed and operated .NET applications in containerised environments

Additional Information:

Job Posted:
December 11, 2025

Employment Type:
Fulltime
Work Type:
Hybrid work
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