C#/.NET Software Engineer III– Legacy Modernization
Remote- CST/EST Hrs.
8-month contract
Pay Rate: $65.00 - $70.00per hr.
Our client is seeking a Software Engineer 3 to remediate critical vulnerabilities and modernize legacy applications. This is a hands-on software engineering role focused primarily on backend development, legacy .NET remediation, and migration to modern .NET Core/OpenShift environments.
Key Responsibilities
• Analyze and remediate critical/high vulnerabilities in existing applications.
• Work hands-on with legacy .NET Framework code, including applications running on .NET Framework 4.7.x.
• Develop, test, and deploy code changes through the full remediation lifecycle.
• Modernize legacy applications by migrating .NET Framework to .NET Core.
• Support migration of applications from Windows/IIS environments to on-prem OpenShift.
• Develop and maintain backend services using C#, .NET, EF Core, and SQL Server.
• Contribute to React-based UI development as needed.
• Collaborate with engineering and security teams to resolve application vulnerabilities.
Required Skills:
• Five (5) years of experience
• Hands-on experience with both .NET Framework and .NET Core.
• Strong C# development experience.
• Experience with SQL/SQL Server and EF Core.
• Experience with React and JavaScript.
• Experience working with legacy applications, preferably .NET Framework 4.7.x.
• Ability to troubleshoot, modify, test, and deploy application code.
Preferred / Nice-to-Have
• OpenShift
• Kubernetes
• Containerization
• Harness
• CI/CD pipeline experience
• Vulnerability remediation or application security experience
Important: Dedicated cybersecurity or vulnerability-project experience is not required. Strong .NET Framework and .NET Core experience is the priority. Lead experience is not required.
Technical Environment
• 65–70% backend / 30–35% frontend
• C#, .NET Framework, .NET Core, EF Core
• SQL Server
• React/JavaScript
• Windows/IIS
• On-prem Red Hat OpenShift
• Some AWS applications, but AWS is not the primary focus
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