Sr. Windows API & Browser Extension Developer

Key Responsibilities

• Develop secure Microsoft Edge Manifest V3 extensions for data capture and API workflows.
• Build Windows integration components using C#, .NET Core, Win32 APIs, Windows Services, and Native Messaging.
• Integrate secure REST APIs using TLS/mTLS, API keys, certificates, and secure authentication.
• Implement secure in-memory data processing with no sensitive data stored in logs or files.
• Support Windows Server 2019/2022 and RDS/Terminal Services environments.
• Manage DPAPI, Windows Certificate Store, service accounts, permissions, and secrets.
• Implement testing, error handling, retries, timeouts, monitoring, and resilience.
• Follow Secure SDLC, OWASP, vulnerability management, code reviews, and secure coding practices.
• Prepare technical documentation, deployment guides, release packages, and support runbooks.
• Collaborate with architects, security, infrastructure, and customer teams.

Mandatory Skills

• 8+ years software development experience.
• 5+ years Windows Server, Windows Platform, and .NET/C# development.
• 3+ years Edge/Chromium Extension and API integration experience.
• Manifest V3, Native Messaging, Win32, ASP.NET Core, REST APIs.
• TLS/mTLS, PKI, Certificate Store, DPAPI.
• Windows Server 2019/2022 and RDS.
• Git/GitHub, CI/CD, testing, Secure SDLC, OWASP.
• Strong troubleshooting, documentation, and customer-facing communication skills.