Purpose of the role
To build and maintain infrastructure platforms and products that support applications and data systems, using hardware, software, networks, and cloud computing platforms as required with the aim of ensuring that the infrastructure is reliable, scalable, and secure. Ensure the reliability, availability, and scalability of the systems, platforms, and technology through the application of software engineering techniques, automation, and best practices in incident response.
Accountabilities
Analyst Expectations
All colleagues will be expected to demonstrate the Barclays Values of Respect, Integrity, Service, Excellence and Stewardship – our moral compass, helping us do what we believe is right. They will also be expected to demonstrate the Barclays Mindset – to Empower, Challenge and Drive – the operating manual for how we behave.
Join us as an IMS Mainframe Systems Programmer at Barclays, where you’ll maintain and optimise IMS environments to ensure the performance, stability, and resilience of critical mainframe systems. You’ll support high-availability operations, resolve multi-faceted incidents, and collaborate with teams across the bank while contributing to ongoing modernisation and automation initiatives.
To be successful as a IMS Mainframe Systems Programmer, you should have:
Ample knowledge of IMS DB/DC, z/OS, JCL, system utilities, and mainframe infrastructure.
Ability to diagnose multi-faceted production issues, perform root-cause analysis, and restore service quickly in a high-availability environment.
Experience implementing changes safely, maintaining system stability, and ensuring performance, recovery, and operational resilience.
Some other highly valued skills may include:
Knowledge of Assembler with experience of supporting user exits would be advantageous but not necessary.
Ability to improve efficiency through scripting, job automation, monitoring, and process optimisation.
Understanding of the IMS Catalog and IMS Managed ACB concepts.
You may be assessed on the key critical skills relevant for success in role, such as risk and controls, change and transformation, business acumen strategic thinking and digital and technology, as well as job-specific technical skills.
This role will be based in our Knutsford office

Barclays is a British universal bank. Our vision is to be the UK-centred leader in global finance. We are a diversified bank with comprehensive UK consumer, corporate and wealth and private banking franchises, a leading investment bank and a strong, specialist US consumer bank. Through these five divisions, we are working together for a better financial future for our customers, clients and communities.
With over 325 years of history and expertise in banking, Barclays operates in over 40 countries and employs approximately 83,500 people. Barclays moves, lends, invests and protects money for customers and clients worldwide.
Barclays is a trading name of Barclays Bank PLC and its subsidiaries. Barclays Bank PLC is registered in England and is authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and the Prudential Regulation Authority. Registered in England. Registered No. 1026167. Registered office: 1 Churchill Place, London E14 5HP.