3251 IT & Software Developer jobs in the UK
Senior CICS Systems Programmer - Belfast
£35,000 - 75,000
Allstate Northern Ireland
May's Meadow 10, Belfast
£35,000 - 75,000
Requirements
Must:
- Minimum of 5 years CICS Systems Programming experience in large-scale enterprise environments, including installation, maintenance and configuration of the product.
- Minimum of 5 years experience with z/OS systems (JES, SMF, WLM, SMP/E, etc.), performance tuning, and problem determination.
- Availability for on-call support; the successful candidate will be part of the escalation path for out-of-hours support.
- Prior leadership/team leader experience is desirable.
- Experience configuring z/OS Connect is a plus.
- Familiarity with CPSM and exposure to MQ, z/OS Connect, and mainframe networking concepts is beneficial.
- Experience with programming/scripting tools such as COBOL, REXX, Python, etc. is a plus.
- Exposure to supporting 24/7 high-volume transaction systems is preferred.
Responsibilities
- Install, configure, upgrade, and maintain CICS/TS across multiple LPARs (DEV/TEST/QA/PROD).
- Design and manage CICS regions, including TORs, AORs, FORs, and coupling facility structures.
- Own and deliver high availability, resiliency, and disaster recovery strategies for CICS environments.
- Perform capacity planning, performance tuning, and MIPS optimization.
- Troubleshoot complex CICS issues such as storage violations, abends, region hangs, and performance degradation.
- Integrate CICS with z/OS Connect, MQ, DB2, IMS, and distributed platforms.
- Support API enablement, including SOAP-to-REST modernization and secure transaction exposure.
- Ensure secure connectivity using RACF, TLS, digital certificates, and network controls.
- Drive automation using SMP/E, REXX, JCL, Ansible, and vendor tooling.
- Reduce technical debt via proactive upgrades, feature enablement, and component decommissioning.
- Collaborate with application teams to modernize legacy interfaces while preserving system stability.
Description
At Allstate, we pride ourselves on working together to protect families and their belongings from uncertainties. With over 90 years of innovative drive, we have consistently stayed ahead of our customers evolving needs. Our team in Northern Ireland is recognized for its accomplishments in cloud services and sustainability. We are a product-driven, cloud-first organization committed to delivering real outcomes through modern technology and a culture rooted in engineering excellence. We offer a generous benefits package, world-class learning platforms, and a strong focus on career growth in a flexible, people-first culture.
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How many System Engineer jobs are in the UK?
Currently, there are 3251 System openings. Check also: Linux jobs, Windows jobs, Network jobs - all with salary brackets.
Is the UK a good place for System Engineers?
The UK is one of the best countries to work as a System Engineer. It has a vibrant startup community, growing tech hubs and, most important: lots of interesting jobs for people who work in tech.
Which companies are hiring for System Engineer jobs in the UK?
SwapTix, Collect Solutions Ltd, Arctic Shores, Government Communications Headquarters (GCHQ), TBG Solutions Ltd, The American School in London, Advanced IT Services among others, are currently hiring for System roles in the UK.
The company with most openings is Experis as they are hiring for 101 different System Engineer jobs in the UK. They are probably quite committed to find good System Engineers.
The company with most openings is Experis as they are hiring for 101 different System Engineer jobs in the UK. They are probably quite committed to find good System Engineers.