Job Description

OP is looking for an experienced z/OS System Administrator to join our team and play a critical role in maintaining and optimizing our Mainframe environment. The ideal candidate will bring deep technical expertise in the z/OS system, proven experience in hardware refresh projects, and a passion for delivering service excellence. Key Responsibilities: Perform z/OS upgrades (versions 2.4, 2.5, or 3.1) using z/OSMF workflows to ensure smooth transitions and system reliability. Provide comprehensive support for zHardware refresh projects across platforms such as z14, z15, and z16. Manage and maintain software using SMP/E, ensuring timely upgrades and maintenance of Broadcom and IBM tools. Implement and promote z/OS service improvement initiatives and industry best practices. Build and manage configurations for new hardware using IODF, HCD, HMC, and IOCP. Oversee and maintain core z/OS subsystems, including JES2, ISPF, TCP/IP, USS, and Parallel Sysplex. Develop and support automation solutions using REXX and CLIST scripting languages. Ensure robust Disaster Recovery support, preparing for and managing system recovery in critical situations. Provide 24/7 on-call support to resolve system issues and maintain system availability. Required Skills and Expertise: Proven expertise with z/OS upgrades (2.4, 2.5, 3.1) using z/OSMF workflows. Expertise in supporting zHardware Refresh projects (z14, z15, z16). Proficiency in SMP/E for IBM and Broadcom tool maintenance and upgrades. Experience in related configuration tools (IODF, HCD, HMC, IOCP). Strong knowledge of core z/OS subsystems (JES2, ISPF, TCP/IP, USS, Parallel Sysplex). Experience in REXX, CLIST, and automation scripting. Solid understanding of Disaster Recovery processes and IPL flow. Experience with problem diagnosis and resolution (abend, wait states, dumps, SLIP). Familiarity with OEM product installs, ServerPac, and Shopz/SMP/E retrieval. Working knowledge of USS, zFS, VTAM, FTP/SFTP, and network protocols. Ability to support 24/7 on-call operations. Benefits: Health Insurance, Accident Insurance. The salary will be determined based on several factors including, but not limited to, location, relevant education, qualifications, experience, technical skills, and business needs. Additional Responsibilities: Participate in OP monthly team meetings, and participate in team-building efforts. Contribute to OP technical discussions, peer reviews, etc. Contribute content and collaborate via the OP-Wiki/Knowledge Base. Provide status reports to OP Account Management as requested. About us: OP is a technology consulting and solutions company, offering advisory and managed services, innovative platforms, and staffing solutions across a wide range of fields including AI, cyber security, enterprise architecture, and beyond. Our most valuable asset is our people: dynamic, creative thinkers, who are passionate about doing quality work. As a member of the OP team, you will have access to industry-leading consulting practices, strategies & and technologies, innovative training & education. An ideal OP team member is a technology leader with a proven track record of technical excellence and a strong focus on process and methodology.