At a Glance
- Tasks: Upgrade and support z/OS systems in a major global environment.
- Company: Join NTT DATA, a leader in tech innovation with a collaborative culture.
- Benefits: Enjoy a competitive benefits package and hybrid working options.
- Other info: Opportunity for career growth and continuous learning in a dynamic team.
- Why this job: Make an impact in one of the largest z/OS environments globally.
- Qualifications: Experience in z/OS systems programming and strong problem-solving skills.
The predicted salary is between 60000 - 80000 £ per year.
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
- Upgrading, maintaining and supporting the z/OS operating system
- Upgrading, maintaining and supporting ISV products particularly from IBM and Computer Associates (CA)
- 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
- Managing hardware and logical resources across LPARs: DASD and tape allocation via HCD/HCM
- LPAR configuration in HMC
- Security administration using RACF or equivalent
- Ensuring data integrity and swift recovery: DFSMShsm policies and recall management, FDR/ABR for high‑speed backups, FlashCopy or virtual tape replication for near‑instant restores
- Optimizing system throughput and response times: RMF and SMF report analysis, OMEGAMON or BMC MainView dashboards, WLM classification and tuning
- Configuring and supporting mainframe connectivity: VTAM and SNA definitions, TCP/IP stack on z/OS, OSA adapter and Coupling Facility communication
- Executing OS and product upgrades with industry‑standard utilities: SMP/E for PTF, APAR, and deliverable management, z/OSMF workflows for streamlined maintenance, Broadcom (e.g., Topaz), IBM, and BMC tooling for fix management and compliance reporting
Qualifications
- Multiple years of z/OS systems programming experience
- Strong Parallel Sysplex skills
- Proficiency with z/OS, TSO/ISPF, USS, SDSF, JCL, RACF
- Experience installing and maintaining IBM and CA products
- Deep mastery of z/OS architecture, including IPL procedures, JES2/JES3 configurations, Sysplex management, SMF data collection, and parmlib customization
- Proficient in writing and debugging system‑level routines and automation: Assembler for exits and control blocks, REXX for scripting and batch utilities, JCL for job submission, parameterization, and workflow control
- Analytical troubleshooting of abends, storage hangs, and performance anomalies using: Dump analysis with IPCS, SLIP and trace tools, System logs and console messages
- Knowledge of performance monitoring, networking, and mainframe connectivity
- Project management and hardware refresh planning, including IPL scheduling, vendor coordination, and change‑control governance
- Ability to produce clear system diagrams, runbooks, and upgrade plans while collaborating with application, storage, networking, and security teams
- Strong documentation and communication skills
- Experience in banking or large installations preferred
- Confident, independent, able to contribute from day one
- Excellent problem‑solving skills and a true team player
- Availability for off‑hours support during software changes when required
- Staying current on IBM Redbooks, z/OS release notes, firmware updates, and attending vendor training or industry conferences
Work Setup
Hybrid working: remote + on client site (Sheffield)
Benefits
You will enjoy a comprehensive, locally competitive benefits package.
Equal Opportunity Employer
NTT DATA is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status.
zOS Mainframe Systems Programmer in Sheffield employer: NTT DATA North America
At NTT DATA, we pride ourselves on being an exceptional employer, offering a dynamic work culture that fosters collaboration and innovation. As a z/OS Mainframe Systems Programmer in Sheffield, you will benefit from a hybrid working model, competitive benefits, and ample opportunities for professional growth within one of the largest mainframe environments globally. Join us to be part of a team that values your expertise and supports your career development while ensuring a healthy work-life balance.
StudySmarter Expert Advice🤫
We think this is how you could land zOS Mainframe Systems Programmer in Sheffield
✨Tip Number 1
Network like a pro! Reach out to folks in the industry, especially those already working at NTT DATA. A friendly chat can give us insights into the company culture and maybe even a referral!
✨Tip Number 2
Prepare for the interview by brushing up on your z/OS knowledge. We should be ready to discuss specific projects we've worked on, especially those involving IBM and CA products. Real-life examples will make us stand out!
✨Tip Number 3
Show off our problem-solving skills! Be ready to tackle hypothetical scenarios during interviews. They love seeing how we approach troubleshooting and system optimisation.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure our application gets noticed. Plus, we can keep track of our application status easily!
We think you need these skills to ace zOS Mainframe Systems Programmer in Sheffield
Some tips for your application 🫡
Tailor Your CV:Make sure your CV is tailored to the z/OS Mainframe Systems Programmer role. Highlight your experience with z/OS, TSO/ISPF, and any relevant ISV products. We want to see how your skills match what we're looking for!
Showcase Your Projects:Include specific projects where you've upgraded or maintained z/OS systems. We love seeing real examples of your work, especially if you can demonstrate your problem-solving skills and teamwork in those projects.
Be Clear and Concise:When writing your application, keep it clear and to the point. Use bullet points for your skills and experiences to make it easy for us to read. We appreciate a well-structured application that gets straight to the good stuff!
Apply Through Our Website:Don't forget to apply through our website! It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it’s super easy to do!
How to prepare for a job interview at NTT DATA North America
✨Know Your z/OS Inside Out
Make sure you brush up on your z/OS knowledge before the interview. Be ready to discuss your experience with upgrading and maintaining the z/OS operating system, as well as any ISV products you've worked with, especially from IBM and CA. This will show that you're not just familiar with the systems but have hands-on experience.
✨Showcase Your Troubleshooting Skills
Prepare to talk about specific instances where you've tackled performance anomalies or storage hangs. Use examples that highlight your analytical troubleshooting skills, such as how you used IPCS or SLIP for dump analysis. This will demonstrate your problem-solving abilities and technical expertise.
✨Familiarise Yourself with Tools and Utilities
Get comfortable with the industry-standard utilities mentioned in the job description, like SMP/E for PTF management and z/OSMF workflows. Being able to discuss how you've used these tools in past projects will give you an edge and show that you're ready to hit the ground running.
✨Communicate Clearly and Collaboratively
Since the role involves working closely with other engineering teams, practice articulating your thoughts clearly. Be prepared to discuss how you've collaborated on projects, produced documentation, or created runbooks. Strong communication skills are key, so make sure you convey your ideas effectively during the interview.
