Senior dotnet developer (Monterrey)

Kogni Vera Reciente León, Mexico (Hybrid)

We're Hiring: (API Migration & Modernization)

Monterrey

Contractor (Full-time)

Technical English + Spanish (required)

• Migrate and refactor existing APIs from. NET Framework 4.0 to. NET 8
• Modernize and optimize backend services while ensuring system stability
• Work extensively with SQL Server, including query optimization and stored procedures
• Maintain and enhance existing systems hosted in on-premise data centers (no cloud involvement)
• Collaborate on code management and version control using Git Lab
• Ensure code quality, performance, and reliability across all implementations

• 5–6+ years of backend development experience
• Strong hands‑on experience migrating APIs from. NET Framework (4.0) to. NET 8