Senior Patch Research Engineer (Pune Division)

Come work at a place where innovation and teamwork come together to support the most exciting missions in the world About The Role Qualys is seeking an experienced Senior Windows Patch Management Catalog Researcher to take ownership of the patch catalog for the Patch Management team. In this senior role, you will not only research and author high-quality patch metadata for a broad range of third-party Windows applications but will also drive catalog strategy, define quality standards, mentor junior researchers, and lead automation initiatives. Your expertise will directly influence the reliability and breadth of Qualys Patch Management. Key Responsibilities Patch Catalog Ownership and Strategy - Own end-to-end delivery of patch metadata for assigned software families - from initial research to production publishing. - Define and maintain catalog standards: field derivation rules, naming conventions, supersedence logic, and schema versioning. - Proactively identify coverage gaps and prioritise onboarding based on customer demand and vulnerability risk. - Build and maintain supersedence chains across software versions and architectures (x86, x64, ARM64). - Track software End-of-Life (EOL) dates and manage timely catalog updates as support windows close. Windows Patching - Advanced Expertise - Serve as subject matter expert on Windows installer technologies: MSI/WiX, NSIS, InnoSetup, Squirrel, MSIX, and vendor-specific custom installers. - Research, document, and validate silent installation parameters, exit codes, and reboot behaviors for complex installer types. - Design and maintain test procedures for patch validation across multiple Windows OS versions. - Troubleshoot installation failures, detection mismatches, and edge-case patching behaviours. Detection Logic and Registry Expertise - Architect robust, version-specific detection logic using registry keys, file attributes, and hybrid (Registry_and_File) detection methods. - Define team detection standards - .