CICS Mainframe Systems Programmer

London, United KingdomPosted Aug 5, 2026

Req ID: 384907

Competitive salary | UK/Europe: Fully remote possible; occasionally Sheffield preferred

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 CICS Mainframe Systems Programmer remote for our growing team in the UK and rest of Europe.

About the role

The CICS Mainframe Systems Programmer is responsible for ensuring the stability, availability, performance, and continuous improvement of CICS services within the IBM Mainframe environment. The role requires strong technical expertise, domain knowledge, and specialist skills to operate, maintain, and enhance critical engineering services as technology evolves.

This position involves system programming, infrastructure support, technical analysis, solution design, deployment planning, configuration, testing, and ongoing operational support. The successful candidate will oversee the management and support of all CICS services, ensure high availability of business-critical applications, provide technical leadership during incident resolution, and collaborate with development and application support teams to deliver robust solutions.

The ideal candidate will be a proactive problem solver with strong technical, analytical, and communication skills, capable of supporting both strategic initiatives and day-to-day operational requirements.

In this role, You will

As a CICS Mainframe Systems Programmer, you will:

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.

Required Qualifications

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 in 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.

Desired Qualifications

Experience with:

CICS Transaction Server 4.2 and/or 5.3 (or higher versions)
OMEGAMON for CICS
ACF2 Security Administration
RACF Administration
Mainframe Sysplex Environments

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.
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

Job expectations

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.

Primary Skillset

CICS System Programmer or Technical Specialist experience
Knowledge of a combination of the following products:
CICS Transaction Server 4.2 and/or 5.3
SMP/E
Omegamon/CICS
ACF2 & RACF
Mainframe SYSPlex environment experience is 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

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.

Whenever possible, we hire locally to NTT DATA offices or client sites. This ensures we can provide timely and effective support tailored to each client’s needs. While many positions offer remote or hybrid work options, these arrangements are subject to change based on client requirements. For employees near an NTT DATA office or client site, in-office attendance may be required for meetings or events, depending on business needs. At NTT DATA, we are committed to staying flexible and meeting the evolving needs of both our clients and employees. NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com, @nttdatafed.com and @talent.nttdataservices.com email addresses. If you are requested to provide payment or disclose banking information, please submit a contact us form, https://us.nttdata.com/en/contact-us.

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