DB2 for z/OS Systems Programmer

Salary: £63,000 - 103,000 per year

Requirements:

• Typically 8 to 15+ years of experience in IBM Mainframe Systems Programming with a strong focus on DB2 for z/OS administration and support.
• Proven experience supporting large-scale enterprise DB2 environments with multiple DB2 subsystems.
• Strong experience in DB2 installation, migration, maintenance, performance tuning, and troubleshooting.
• Experience working in Banking, Financial Services, Insurance, or other mission-critical enterprise environments preferred.
• Hands-on experience supporting high-volume OLTP environments utilizing CICS and DB2.
• Strong experience with DB2 for z/OS, z/OS Operating System, SMP/E, JCL, TSO/ISPF, SDSF, and RACF.
• Experience installing, upgrading, testing, and supporting DB2 releases.
• Experience providing Level 2 and Level 3 support for DB2-based applications.
• Strong understanding of Distributed DB2 Connectivity (DDF).
• Expertise in DB2 Performance Monitoring and Tuning, Capacity Planning, Backup and Recovery, Disaster Recovery, and Database Security Administration.
• Strong analytical and troubleshooting skills.
• Excellent written and verbal communication skills.
• Ability to work independently and manage multiple priorities within a production environment.
• Experience working in large-scale enterprise environments with 50+ DB2 subsystems.
• Exposure to Mainframe Sysplex and Data Sharing environments.
• Experience with OMEGAMON for DB2, DB2 Data Sharing, IBM Utilities for DB2, DB2 Performance Expert, and DB2 Administration Tool.
• Knowledge of ACF2 Security, RACF Security Administration, CICS Integration with DB2, and Automation and Monitoring Tools.
• Experience supporting Banking and Financial Services organizations.
• Familiarity with regulatory, audit, and compliance requirements.
• Knowledge of disaster recovery solutions and resilience architectures.
• IBM DB2 for z/OS certifications preferred.

Responsibilities:

• Install, configure, upgrade, and maintain DB2 for z/OS environments.
• Support a large-scale enterprise DB2 infrastructure comprising multiple DB2 subsystems.
• Plan and execute DB2 version upgrades, migrations, and maintenance implementations.
• Provide Level 2 and Level 3 technical support for applications utilizing DB2.
• Ensure the stability, integrity, availability, and performance of DB2 databases and supporting infrastructure.
• Support and manage Distributed Data Facility (DDF) and distributed DB2 connectivity.
• Maintain and optimize highly responsive OLTP environments utilizing CICS and DB2.
• Monitor database performance and implement tuning recommendations to improve efficiency and throughput.
• Perform system capacity planning and growth forecasting.
• Develop, test, and maintain backup, recovery, and disaster recovery procedures.
• Ensure proper storage management, archiving, and retention processes are in place.
• Implement and manage database security controls and access governance.
• Troubleshoot and resolve complex database and infrastructure issues.
• Collaborate with application teams to support database design, deployment, and problem resolution.
• Ensure compliance with enterprise security, audit, and regulatory requirements.
• Maintain technical documentation, operational standards, and support procedures.
• Ensure all database and monitoring solutions are maintained on supported versions.
• Ensure high availability, reliability, and performance of DB2 for z/OS environments.
• Maintain and support a complex enterprise database estate across multiple regions and platforms.
• Participate in software maintenance, upgrades, migrations, and implementation activities.
• Provide on-call and after-hours support for critical incidents and planned maintenance activities.
• Lead technical troubleshooting and root cause analysis for major incidents.
• Drive continuous improvement initiatives focused on automation, performance optimization, and operational excellence.
• Collaborate effectively with infrastructure, development, security, and operational teams.
• Demonstrate ownership, accountability, and proactive support of critical business services.

Technologies:

• AI
• CICS
• Cloud
• IBM
• IBM Db2
• IBM Mainframe
• Support
• JCL
• REST
• Security
• TSO
• TSO/ISPF

More:

We are NTT DATA, 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 worlds leading AI and digital infrastructure providers, with capabilities across 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. We are hiring a DB2 for z/OS Systems Programmer to join our DB2 Support Team in the UK and rest of Europe, with fully remote working possible and occasional preference for Sheffield. We offer a comprehensive, locally competitive benefits package and prioritize health and wellbeing. Whenever possible, we hire locally to NTT DATA offices or client sites, and remote or hybrid arrangements may be subject to change based on client requirements. We are a Global Top Employer with experts in more than 50 countries and are part of NTT Group, which invests over $3 billion each year in R&D.

last updated 37 week of 2026