Senior .NET Engineer (Contract)

Working at Tech Holding isn't just a job, it's an opportunity to be a part of something bigger. We are a full-service consulting firm that delivers predictable outcomes and high-quality solutions, supported by deep expertise, integrity, transparency, and dependability.

Location: India

Responsibilities

• Maintain, debug, and enhance a portfolio of legacy desktop and web applications across multiple technology generations
• Triage and resolve production issues in WinForms-based desktop apps and API/middleware services
• Collaborate with client stakeholders and cross-functional engineering teams to understand business requirements
• Refactor and improve legacy code where appropriate without disrupting existing functionality
• Document findings, workarounds, and architectural decisions for knowledge transfer
• Support integrations between legacy systems and modern API layers

Requirements

• 5+ years of professional software development experience
• Strong proficiency in VB.NET and C# (7.x / 8.x)
• Hands-on experience with .NET Framework (4.0, 4.5, 4.8) and .NET Core (3.1+)
• Experience working with or supporting VB6 applications
• Familiarity with WinForms desktop application development
• Experience building or maintaining REST APIs and middleware services
• Ability to work independently in unstructured, legacy codebases with minimal documentation