CICS Mainframe Systems Programmer

Salary: £44,000 - 72,000 per year

Requirements

• Several years of experience in mainframe systems programming with specialization in CICS administration and support
• Proven experience supporting large-scale, mission-critical CICS environments
• Experience with installation, customization, upgrade, maintenance, and troubleshooting of CICS Transaction Server
• Exposure to mainframe Sysplex environments and high-availability configurations
• Strong hands-on experience with CICS Transaction Server, SMP/E, z/OS, JCL, TSO/ISPF, SDSF, RACF
• Experience installing, upgrading, configuring, and troubleshooting CICS environments
• Ability to analyze and resolve complex system and application issues
• Experience supporting production-critical systems with stringent availability requirements
• Strong understanding of system performance management and capacity planning
• Excellent troubleshooting and problem-solving skills
• Strong verbal and written communication skills
• Ability to work independently and collaboratively within global teams
• Experience with CICS Transaction Server 4.2 and/or 5.3 or higher
• Experience with OMEGAMON for CICS, ACF2 Security Administration, and RACF Administration
• Knowledge of high availability and disaster recovery architectures
• Experience with automation and operational tooling within CICS environments
• Strong understanding of application connectivity and middleware technologies
• Experience supporting large banking or financial services organizations preferred
• Ability to mentor junior engineers and provide technical guidance
• Demonstrated ability to make sound technical decisions in complex and ambiguous situations
• Understanding of ITIL-based service management processes preferred
• Experience working in banking, financial services, insurance, or other large enterprise environments preferred
• CICS System Programmer or Technical Specialist experience
• Knowledge of a combination of CICS Transaction Server 4.2 and/or 5.3, SMP/E, Omegamon/CICS, ACF2 and RACF, and mainframe Sysplex environment experience preferred
• A flexible and adaptable management style with experience of developing yourself and others
• A track record of making complex business decisions with authority, even in times of ambiguity, considering the potential long-term risks and implications

Responsibilities

• Install, configure, administer, maintain, and support CICS systems software
• Create and manage CICS resource definitions and system configurations
• Support and maintain production CICS environments, including out-of-hours troubleshooting and incident resolution
• Install, test, and implement new releases, maintenance updates, and enhancements for CICS Transaction Server
• Provide Level 2 and Level 3 support for applications utilizing CICS services
• Work closely with application development and support teams to resolve complex technical issues
• Lead problem determination, root cause analysis, and recovery activities during critical incidents
• Design and implement new technology solutions to improve service availability, performance, and operational efficiency
• Monitor CICS performance and system resources to ensure optimal response times and service levels
• Develop, test, and maintain backup, recovery, and business continuity procedures
• Administer user access controls and support security implementations using RACF and ACF2
• Perform capacity planning and performance tuning activities for CICS environments
• Ensure data security, recovery, and compliance requirements are met
• Support change management, release management, and implementation activities
• Create and maintain technical documentation, procedures, and operational standards
• Maintain highly available, secure, and performant CICS environments
• Participate in planned maintenance, software upgrades, and production releases
• Provide on-call and after-hours support for critical incidents and implementations as required
• Ensure compliance with organizational security, audit, and operational policies
• Collaborate with infrastructure, development, security, and application support teams
• Lead incident resolution and recovery efforts for critical service disruptions
• Drive continuous improvement initiatives through automation, standardization, and process optimization
• Maintain accurate technical documentation and operational procedures
• Demonstrate leadership, accountability, and ownership in managing critical platform services
• Contribute to technology modernization and infrastructure enhancement initiatives

Technologies

• Support
• ITIL
• Security
• AI
• Cloud
• IBM
• IBM Mainframe
• REST

More

We are NTT DATA, a global business and technology services leader serving 75% of the Fortune Global 100. We are hiring a CICS Mainframe Systems Programmer to join our growing UK and Europe team, with fully remote working possible in the UK/Europe and occasional preference for Sheffield. We offer a competitive salary and a comprehensive, locally competitive benefits package, with health and wellbeing as a priority. We are committed to responsible innovation, digital transformation, and supporting our peoples growth. As a Global Top Employer with experts in more than 50 countries, we provide access to innovation centers and a strong partner ecosystem. We value flexibility, local hiring where possible, and a collaborative environment focused on secure, high-availability services and continuous improvement.

last updated 36 week of 2026