Senior Systems Programmer – Mainframe Support
Listed on 2026-03-03
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IT/Tech
Systems Engineer, IT Consultant, Data Engineer -
Engineering
Systems Engineer, Data Engineer
Overview
Senior Systems Programmer – Mainframe Support (Full-Time, Exempt)
Onsite:
League City, South Houston, TX
Hours:
Monday–Friday, 8:00 AM–4:30 PM. On-Call Rotation.
Mainframe programmer, Z/OS systems programmer, mainframe support, storage administration, SMS, HSM, DS8000, TS7700, enterprise storage, mainframe engineer, FDR, tape management, Service Now, mainframe upgrades, Z/OS tuning, mainframe jobs, senior systems programmer.
Key Responsibilities- Lead mainframe storage administration including SMS, HSM, DS8000, TS7700, tape systems, allocation, DR, and backup/recovery
- Manage tickets, incidents, and escalations in Service Now
- Perform upgrades, installations, and tuning for Z/OS and third-party mainframe tools
- Troubleshoot performance issues and conduct root cause analysis in large-scale environments
- Collaborate with cross-functional teams—application programmers, infrastructure engineers, platform architects, and operations
- Support critical workloads in a high-uptime, enterprise environment
- Proven experience as a Mainframe Systems Programmer or Senior Z/OS Programmer
- Strong background in mainframe storage administration, including SMS/HSM
- Expertise with DS8000, TS7700, and enterprise-class storage systems
- Hands-on experience with FDR, tape services, backup and recovery solutions
- Ability to support on-call rotation in a 24/7 production environment
- Strong problem-solving skills and the ability to handle complex escalations
If you’re seeking a stable, long-term home where your mainframe expertise is recognized and valued, this organization offers competitive benefits, professional development, and a collaborative culture. Benefits include medical, dental, and vision coverage; company-paid basic life insurance; 401(k) with employer contributions; generous PTO and holidays; relocation assistance; casual dress code; and flexible work culture.
Work EnvironmentYou’ll be part of a high-performing infrastructure and mainframe engineering group supporting large-scale Z/OS environments. This role rewards technical mastery, initiative, and problem-solving.
Equal OpportunityThis employer is committed to creating an inclusive, equitable workplace and provides reasonable accommodations upon request.
Client Staffing Solutions
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