Legacy System Modernization & Migration (Java / .NET / C#)Jack Kollar
Upgrade outdated applications to modern, maintainable architectures without disrupting business operations. I refactor, migrate, or rebuild legacy systems into scalable Java or .NET solutions with improved performance, security, and cloud readiness.
Example work
Starting at$75 /hr
Tags
C#
Java
JavaScript
.NET
Backend Engineer
Dot Net Backend Developer
Fullstack Engineer
Software Developer
Software Engineer
Service provided by
Jack Kollar
pro
Newnan, USALegacy System Modernization & Migration (Java / .NET / C#)Jack Kollar
Starting at$75 /hr
Tags
C#
Java
JavaScript
.NET
Backend Engineer
Dot Net Backend Developer
Fullstack Engineer
Software Developer
Software Engineer
Upgrade outdated applications to modern, maintainable architectures without disrupting business operations. I refactor, migrate, or rebuild legacy systems into scalable Java or .NET solutions with improved performance, security, and cloud readiness.
Example work
$75 /hr