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# Senior Group Technical Architect C#, .NET

- **Company:** HCLTech
- **Location:** London, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** ASP.NET, .NET Framework, Application Programming Interfaces (APIs), Amazon Web Services, Microsoft Azure, C Sharp (Programming Language), C++ (Programming Language), Cloud Computing, Reverse Engineering, Codebase, Software Coding
- **Published:** July 18, 2026
- **Apply:** https://uk.indeed.com/viewjob?jk=ba7fe04f1afb1bab

## About the Role

Must-Have Skills

 * 10+ years in architecture / senior engineering
 * Strong .NET expertise (C#, ASP.NET Core, APIs)
 * Experience with large enterprise codebases
 * AI-assisted development (Claude/Copilot)
 * Strong ability to work in ambiguous environments with evolving architecture and

tooling
Nice-to-Have

 * Claude Code experience
 * Claude Certified Architect
 * Cloud (Azure preferred, AWS/GCP ok)
 * Insurance domain

Other Requirements
1.Relevant certifications in .NET, C#, or C++ are a plus.

## Description

* Define scalable architecture for .NET enterprise systems
 * Reverse engineer and modernize existing applications
 * Drive AI-assisted development practices using Claude
 * Guide teams on coding standards, design, and best practices
 * Identify risks, dependencies, and integration challenges


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- [Building Multi-Tenant ASP.NET Core Applications: Best Practices and Real-World Solutions](https://www.wearedevelopers.com/videos/1552-building-multi-tenant-asp-net-core-applications-best-practices-and-real-world-solutions)
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