System and Windows Administrator

Key ResponsibilitiesProvide technical support for customer. Own and action requests for service, implementing changes and resolving assigned problems (may involve some after hours and weekend work).Provide 24x7 after hours on-call support as required for products supported by the teamPersonal compliance and ownership on security, audit and systems integrity postureHighlight areas for improvement in current processes, and implement improvementsMust be flexible to support in different shift timings and provide coverage for the weekend maintenance change implementation windows.Attend and actively participate in weekly review meetings with the team leader and/or manager to discuss issues, concerns, people, ideas and workloadBe a focal point in a technical and client advocate capacity and whenever rotated onto new accounts, ensure other team members are mentored to enable smooth succession of previous accountAssist wider team performing the level 1-3 capability, potentially offshore or remote locations.Required Technical and Professional Expertise6+ Years Experience in Mainframe z/OS System Programming.Deep understanding of z/OS operating system architecture and featuresDeep knowledge of z/OS Facilities, Parallel Sysplex, GDPSHands-on experience on SAD, GTF trace conceptsLed multiple complex IBM and ISV product upgrades and related projects.Proficiency in z/OS system programming languages like assembler and REXXExpertise in system management tools like SMPE (Software Management Program Entry) and z/OSMFKnowledge of mainframe hardware configurations and I/O managementExperience with system monitoring and performance analysis toolsStrong analytical and troubleshooting skillsPreferred Technical and Professional ExperienceMonitoring system performance using RMF, SYSVIEW, Mainview, TMON or Omegamon tools, identifying bottlenecks, and implementing optimization strategies. Diagnosing and resolving complex system issues, including software errors, hardware failures, and system crashes.Implementing and enforcing security policies on the z/OS system to protect sensitive data.Assessing system capacity needs and planning for future growth