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Senior .NET Developer

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Signify Technology

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Location:
Argentina

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

25.00 - 30.00 USD / Hour
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Job Description:

An established US-based aerospace technology company — one of our agency's longer-standing clients. The work supports a mission-critical operational platform.

Job Responsibility:

  • Maintaining and modernising a mission-critical .NET application — a mixed VB.NET and C# codebase running on IIS / Windows Server, with integrations across SQL Server, Azure DevOps, SharePoint, Excel VBA macros, Power Automate, and BI tools
  • Maintain and extend the existing VB.NET and C# codebase
  • Continue the partial VB.NET to C# migration pragmatically — modernise where it matters, leave what's stable alone
  • Build and optimise SQL Server queries, stored procedures, and integrations
  • Deliver against a hard deadline with minimal onboarding

Requirements:

  • 8+ years .NET experience — BOTH VB.NET and C# required, this is non-negotiable
  • Current VB.NET use within the last 12 months — primary screen, no exceptions
  • Pragmatic with legacy codebases — knows what to modernise vs what to leave alone
  • Strong SQL Server: queries, stored procedures, optimisation

Nice to have:

  • Prior experience working alongside teams based in the US, Canada, or Europe
  • Prior partial-migration or modernisation project experience
  • Mission-critical or safety-sensitive application background

Additional Information:

Job Posted:
May 04, 2026

Employment Type:
Fulltime
Work Type:
Remote work
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