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
Numbers & Facts
Location
Birmingham, AL (Remote)
Salary
$65–$70 Per Hour
Skills
Analysis Skillsunmatched
Applications Securityunmatched
Computer Securityunmatched
Microsoft .NETunmatched
Microsoft C# (C Sharp)unmatched
Microsoft IIS Web Server (Internet Information Services)unmatched
Microsoft SQL Serverunmatched
Microsoft Windows Operating Systemunmatched
React.jsunmatched
Red Hat Linux Operating Systemunmatched
SQL (Structured Query Language)unmatched
Software Engineeringunmatched
User Interface/Experience (UI/UX)unmatched
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