Mainframe CICS System Support / Programmer

Whitehall Resources Ltd; City Of London; Remote; GBP 60,000 - 85,000; Full time

Job summary

A leading company in Information Technology is seeking an experienced Mainframe CICS System Support / Programmer to join their team in London. The position is fully remote, with a focus on ensuring system efficiency and reliability while supporting a global infrastructure. The ideal candidate will have extensive experience in CICS environments and will contribute to both technical support and systems management.

Qualifications

• 10+ years of experience with mainframe CICS software.
• 5+ years with CICSplex and CICS Explorer.
• Strong technical support and problem-solving skills.

Responsibilities

• Perform mainframe CICS software upgrades and administration.
• Provide 24/7 technical support for system availability.
• Analyze CICS versions for performance improvements.

Skills

CICS software installation

CICS administration

Problem determination

High availability environments

Z/OS tools

Tools

Omegamon

Fault Analyzer

Job description

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Mainframe CICS System Support / Programmer, City of London

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Location:

City of London, United Kingdom

Job Category:

Information Technology

EU work permit required:

Yes

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Job Reference:

BBBH64045_1750242578

Job Views:

19

Posted:

18.06.2025

Expiry Date:

02.08.2025

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Job Description:

Mainframe CICS System Support / Programmer

Whitehall Resources require a Mainframe CICS System Support / Programmer to work with a key client on a 6 month initial contract.

*Fully remote.

*Inside IR35.

Mainframe CICS System Support / Programmer

As a CICS System Programmer, candidate will be part of a Global team responsible for building, configuring, and maintaining the clients mainframe systems availability, efficiency, and resilience, underpinned by the architectural principle of cloned infrastructure, system configurations, applications.

Key Responsibilities:
• Perform mainframe CICS software upgrades coupled with administration and tuning to support mainframe environments. Current version is CICS 5.6.
• Provide high degree of technical support (24*7) to reduce the likelihood of significant service outage or disaster.
• Analyse new versions of CICS for functionality improving systems performance and reduce cost.
• Tracking and analyzing performance and resource utilization of CICS systems
• Recommend changes, upgrades, and enhancements based on the technical analysis.
• Perform problem diagnostics and resolutions as well.
• Participate in incident and problem management activities related to applications and CICS.
• Encourage and ensure collaboration across functional users and vendors to provide guidance and manage different tasks with a “can-do” attitude.
• Execute project and internal initiative responsibilities as assigned or delegated.
• Walking ahead by being enthusiastic and responsible for strengthening and developing system skills.
• Develop and maintain operational documentation, best practices, and run books for the operational platform.
• Upskill junior systems programmers.

Mandatory Skills:
• Have 10+ years of experience of installing and/or customizing mainframe CICS software in Large Data sharing environments.
• Have 5+ years of experience with CICSplex and CICS Explorer to manage CICS systems.
• Solid understanding of:
* resource definitions and its dependencies.
* CF structures and its practical use in a business environment.
• Experience with Omegamon and Fault Analyzer along with basic dump analysis skills on IPCS.
• Experience in cloning and sunsetting CICS regions.
• Basic understanding of CICS security with RACF.
• Exposure to working with SMF 110 records and its practical application in terms of problem determination.
• Strong problem determination skills in both system and application areas
• Proficient in working with high availability environment along with alignment to process (ITIL)
• Experience working with and maintaining other vendor tools for CICS as well as exposure to common z/OS tools like SDSF RMF etc.
• Experience with automating CICS events via CICSplex RTA and/or system automation tools on z/OS.

All of our opportunities require that applicants are eligible to work in the specified country/location, unless otherwise stated in the job description.



Whitehall Resources are an equal opportunities employer who value a diverse and inclusive working environment. All qualified applicants will receive consideration for employment without regard to race, religion, gender identity or expression, sexual orientation, national origin, pregnancy, disability, age, veteran status, or other characteristics.