Location: Argentina, Remote (U.S Pacific Working Hours)

Type: Contract

We're looking for an experienced Senior .NET Developer to support and enhance a mission-critical operations application built on a mixed VB.NET and C# codebase. The system underpins real-world operational workflows in a hardware-intensive industry where software reliability directly impacts physical outcomes.

This is a legacy modernization engagement - partially migrated codebase, actively maintained, tied to hard external delivery milestones. You'll ramp quickly, work with autonomy, and deliver against a fixed timeline.

Responsibilities

• Maintain and enhance existing VB.NET and C# modules
• Continue migration of remaining VB.NET components to C#
• Deliver bug fixes, performance improvements, and new features on schedule
• Write and optimize SQL Server queries, stored procedures, and data integration logic
• Support ...