Senior Systems Programmer (Mainframe)

Job Title: Senior Systems Programmer – Mainframe Support (Full-Time, Exempt)  Onsite Location: League City, TX. (Marina Plaza)  Reports To: Director, Large Systems  Work Hours: Monday-Friday; between the hours of 8:00 am-4:30 pm; including on-call rotation  Relocation Assistance: Provided accordingly    Join our dynamic team as a Senior Systems Programmer, specializing in mainframe support with a focus on storage administration. You will be the go-to expert for ZOS operating systems and third-party software, handling escalations, tuning, upgrades, and troubleshooting in a fast-paced environment. This role is ideal for self-starters who thrive on solving complex issues and driving improvements.    What You will Do:  Manage support tickets and escalations through ServiceNow, prioritizing and resolving incidents   Lead storage administration: allocation, backup, recovery, tape services, SMS, HSM, and third-party tools (e.g., FDR)  Oversee upgrades of third-party software, performance tuning, and investigations for mainframe environments (z/OS)  Collaborate with infrastructure teams, application programmers, and cross-functional partners    Qualifications:  Hands-on experience with SMS, HSM, DS8000, TS7700 Mainframe storage administration expertise  Proven z/OS systems programming and storage administration background  Ability to participate in on-call rotation