Overview 15+ years hands-on experience with IBM RACF administration in z/OS mainframe environments. Proficiency with IBM zSecure suite for RACF auditing and automation tasks. Demonstrated knowledge and operational support experience with Mainframe technology in a large scale environment similar as the Government of Ontario and 10+ years demonstrated experience in complex projects related to installation/setup, migrations and upgrades. Solid understanding of z/OS system internals, TSO/ISPF, JCL, JES2/3, and general mainframe architecture. Excellent communication skills to interface with technical and non-technical stakeholders. Responsibilities Provide expert‑level administration and operational support for IBM RACF within the OPS mainframe environment. Analyze and resolve complex RACF security issues, including access violations, improper access denials, and audit findings. Implement SSL/TLS Certificate Renewals on the Mainframe environment. Participate in incident, problem, and change management activities, including CRQs, implementation planning, and root‑cause analysis. Provide on‑call Level‑2 RACF support in a 24x7 mission‑critical environment. Support RACF‑related aspects of disaster recovery, business resumption planning, and annual contingency testing. Provide technical consultation, mentoring, and guidance to IAMP staff, ITS teams, and authorized ministry stakeholders. Ensure delivery of complete and up‑to‑date RACF documentation, including procedures, standards, runbooks, and knowledge transfer artifacts. #J-18808-Ljbffr