Software Engineer 4 (C#,. Net core, Runtime Profiling, CLR Internals)

About the role

We are looking for a Hands-on Software Engineer 4 to work on our Seeker Inline Agent for .NET — a dynamic application security testing (DAST) agent that instruments .NET applications at runtime to detect security vulnerabilities. You will work across C#, C++, and multiple .NET runtime versions to build and maintain profiler-based instrumentation, security checkers, and platform integrations.

What you'll do

• Design, develop, and maintain the .NET agent core, including security checkers (SQLi, XSS, CSRF, deserialization, etc.) and taint analysis engine
• Develop and optimize native C++ profilers using the CLR Profiling API for both .NET Framework and .NET Core/.NET 5+
• Support multi-platform builds targeting Windows (x64), Linux (x64, ARM64), and Alpine/musl environments
• Extend agent capabilities to new .NET versions (.NET 8, 9, 10+) and hosting models (AWS Lambda, Azure Functions, gRPC, OWIN, WCF)
• Collaborate on CI/CD pipelines (GitLab CI) across multiple OS targets and Docker-based build environments

What you need

• 9–16 yrs of experience
• C#
• .NET
• C++
• CI/CD
• Linux
• AWS
• Any graduate

Good to have

• Git
• OWASP
• PowerShell
• Docker
• Instrumentation
• Azure