JOB DESCRIPTION
Req ID: 346483
Competitive salary | UK: Hybrid: remote + Sheffield
At NTT DATA, we know that with the right people on board, anything is possible. The quality, integrity, and commitment of our employees are key factors in our company’s growth, market presence and our ability to help our clients stay a step ahead of the competition. By hiring the best people and helping them grow both professionally and personally, we ensure a bright future for NTT DATA and for the people who work here.
NTT DATA is currently looking for a z/OS Mainframe Systems Programmer (hybrid: remote + Sheffield) for our growing team in the UK.
Overview
NTT DATA are seeking an experienced z/OS Mainframe Systems Programmer to work on major projects, in one of the largest z/OS Mainframe environments globally. The role involves upgrading and supporting the z/OS operating system and ISV products, mainly from IBM and Computer Associates (CA).
Responsibilities:
1. Upgrading, maintaining and supporting the z/OS operating system
2. Upgrading, maintaining and supporting ISV products particularly from vendors: IBM and Computer Associates (CA)
3. Working closely with the other Engineering teams to ensure the systems that are built are stable, available, up to date and running as effectively and efficiently as possible
4. Managing hardware and logical resources across LPARs:DASD and tape allocation via HCD/HCMLPAR configuration in HMCSecurity administration using RACF or equivalent
5. Ensuring data integrity and swift recovery with:DFSMShsm policies and recall managementFDR/ABR for high-speed backupsFlashCopy or virtual tape replication for near-instant restores
6. Optimizing system throughput and response times utilizing:RMF and SMF report analysisOMEGAMON or BMC MainView dashboardsWLM classification and tuning
7. Configuring and supporting mainframe connectivity:VTAM and SNA definitionsTCP/IP stack on z/OSOSA adapter and Coupling Facility communication
8. Executing OS and product upgrades with industry-standard utilities:SMP/E for PTF, APAR, and deliverable managementz/OSMF workflows for streamlined maintenanceBroadcom (e.g., Topaz), IBM, and BMC tooling for fix management and compliance reporting
Skills:
9. Multiple years of z/OS systems programming experience
10. Should have very strong Parallel Sysplex skills
11. z/OS, TSO/ISPF, USS, SDSF, JCL, RACF
12. Installation of several different IBM and CA products
13. Extensive experience of installing many IBM and CA products
14. Deep mastery of z/OS architecture, including IPL procedures, JES2/JES3 configurations, Sysplex management, SMF data collection, and parmlib customization.
15. Proficient in writing and debugging system-level routines and automation:Assembler for exits and control blocksREXX for scripting and batch utilitiesJCL for job submission, parameterization, and workflow control
16. Managing hardware and logical resources across LPARs:DASD and tape allocation via HCD/HCMLPAR configuration in HMCSecurity administration using RACF or equivalent
17. Analytical troubleshooting of abends, storage hangs, and performance anomalies using:Dump analysis with IPCSSLIP and trace toolsSystem logs and console messages
18. Ensuring data integrity and swift recovery with:DFSMShsm policies and recall managementFDR/ABR for high-speed backupsFlashCopy or virtual tape replication for near-instant restores
19. Performance Monitoring
20. Networking Knowledge
21. Executing OS and product upgrades with industry-standard utilities:SMP/E for PTF, APAR, and deliverable managementz/OSMF workflows for streamlined maintenanceBroadcom (e.g., Topaz), IBM, and BMC tooling for fix management and compliance reporting
22. Project Management & Hardware Refresh
23. Planning and leading hardware refreshes, feature activations, and migrations with minimal downtime, including IPL scheduling, vendor coordination, and change-control governance.
24. Producing clear system diagrams, runbooks, and upgrade plans, while collaborating with application teams, storage, networking, and security groups.
25. Documentation and Communication
26. Should have ideally worked in a Bank or organisations with large installations
27. Should be confident, able to work independently and start contributing from day one
28. Must have excellent problem-solving skills and be a true team player
29. Will need to provide off hours support for the implementation of software changes, when required
30. Staying current on IBM Redbooks, z/OS release notes, firmware updates, and attending vendor training (IBM, Broadcom, BMC) or industry conferences.
Work setup
Hybrid working: remote + on client site (Sheffield)
Benefits
Our people are the most critical component of our long-term success and their health and wellbeing are our priority. You will enjoy a comprehensive, locally competitive benefits package.
About NTT DATA
NTT DATA is a $30 billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. our consulting and Industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is a part of NTT Group, which invests over $3 billion each year in R&D.
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