Lead .NET Developer to drive VB6 to C#/.NET Core modernization. Hybrid contract role in GTA requiring 10+ years C#/.NET and 5+ years VB6 experience.
Responsibilities
Lead modernization of legacy VB6 applications into C# / .NET Core. Reverse-engineer and refactor complex legacy business logic. Redesign and optimize SQL Server components (T-SQL, stored procedures). Ensure feature parity and system stability during migration. Collaborate with architects, QA, and dev teams across delivery lifecycle. Support testing, validation, and performance tuning of rewritten systems.
Requirements
10+ years C# / .NET (Framework or .NET Core). 5+ years VB6 + legacy system experience (modernization required). Strong SQL Server expertise (T-SQL, performance tuning, SSMS/SSRS). Proven experience in large-scale migration / rewrite projects. Experience with enterprise architecture and clean code practices. Tools: Visual Studio, Git, Azure DevOps, Bitbucket. Bonus: Financial services, REST APIs, CI/CD, cloud exposure.
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