a { text-decoration: none; color: #464feb;
}
tr th, tr td { border: 1px solid #e6e6e6;
}
tr th { background-color: #f5f5f5;
}

Senior Full Stack .NET Developer (Legacy Modernization)
Pay Rate: $22.50-$30/hour
Position Overview
We are seeking a highly skilled Senior Full Stack .NET Developer to support the modernization of critical business applications and the migration of a legacy platform. This role requires a hands-on engineer with deep experience in ASP.NET Web Forms (ASPX), VB.NET, SQL Server, React, and .NET Core/.NET who can effectively bridge legacy technologies with modern application architectures.
In addition to strong technical capabilities, this position requires exceptional leadership, communication, and emotional intelligence. The successful candidate will work within an evolving environment where legacy systems are being modernized and will play a key role in helping guide the transition while maintaining positive collaboration across technical teams.
Experience working in highly regulated industries where application reliability, data integrity, compliance,



and auditability are critical is highly desirable.

Key Responsibilities
Support, maintain, and enhance existing ASP.NET Web Forms (ASPX) and VB.NET applications.
Analyze legacy applications and develop modernization strategies aligned with business and technical objectives.
Lead and execute migrations from legacy Microsoft technologies to modern architectures using React and .NET Core/.NET.
Design, develop, test, and deploy scalable full-stack solutions.
Develop and optimize SQL Server databases, queries, stored procedures, and performance tuning initiatives.
Partner with business stakeholders, architects, and development teams to define technical requirements and implementation plans.
Ensure data integrity, system reliability, and application security throughout modernization efforts.
Troubleshoot production issues and implement sustainable solutions.
Provide technical leadership and mentorship

📌 Senior Full Stack .NET Developer (Ciudad de México)
🏢 SCIGON
📍 Ciudad de México