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mainframe operator jobs in United Kingdom

Jobs found: 126
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Barclays Bank PLC
Glasgow

Join us at Barclays as a Mainframe DB2 System Specialist, where you'll help build and maintain resilient infrastructure platforms supporting vital applications and data systems. Apply cutting-edge engineering and automation to ensure reliability, scalability, and security across our core technologies. To be successful as a Mainframe DB2 System Specialist, you should have experience with: -...

5 hours ago
Kyndryl
St James's WC2H 7PS

You will bring deep expertise in mainframe technologiesand enterprise IT systems, combining hands-on technical capability with strategic thinking. Whether you focus on designing architectures, leading transformation projects, or implementing and optimising critical systems, your work will make a real difference.

Hybrid
4 hours ago
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Atrium Workforce Solutions Ltd
Manchester

You will play a key role in supporting and enhancing legacy systems critical to banking operations. The ideal candidate will have strong technical expertise in Assembler and related mainframe technologies, combined with solid experience in high-volume, regulated environments.

Hybrid
23 hours ago
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Barclays Bank Plc
Canary Wharf E14 5HP

Join us at Barclays as a Mainframe DB2 System Specialist, where you'll help build and maintain resilient infrastructure platforms supporting vital applications and data systems. Apply cutting-edge engineering and automation to ensure reliability, scalability, and security across our core technologies. Read the overview of this opportunity to understand what skills, including and relevant soft...

5 hours ago
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Head Resourcing
London

Start: 11/24/2025 End: 05/29/2026 Inside IR35 Nottingham Mainframe System Automation Engineer (OPSMVS) required for an initial 12 - 18-month role with our blue-chip Financial Services client. The right candidate must have demonstrable experience in Mainframe Automation & Operations, OPSMVS, REXX and ideally some experience in CA-View & CA-Deliver. The role must be engaged via an FCSA...

6 days ago
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England

You will play a key role in supporting and enhancing legacy systems critical to banking operations. The ideal candidate will have strong technical expertise in Assembler and related mainframe technologies, combined with solid experience in high-volume, regulated environments.

Hybrid
4 days ago
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United Kingdom

Join us as a Mainframe Performance Specialist, to support the z/OS Performance team in monitoring and improving the performance of Barclays mainframe systems. You ll work across a broad range of Mainframe technologies to support system performance and reliability. This includes investigating infrastructure issues, using performance tools and platform features, contributing in-house code, and...

5 hours ago
Amazon
London

Mainframe Migration Delivery Consultant, ProServe Mainframe Center of Excellence Join to apply for the Mainframe Migration Delivery Consultant, ProServe Mainframe Center of Excellence role at Amazon Web Services (AWS)Mainframe Migration Delivery Consultant, ProServe Mainframe Center of Excellence 3 days ago Be among the first 25 applicantsJoin to apply for the Mainframe Migration Delivery...

5 hours ago
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Manchester

An exciting opportunity has arisen for an experienced Mainframe DB2 System Programmer to join a dynamic infrastructure engineering team, supporting mission-critical applications and data systems across enterprise platforms. This role is ideal for a professional who thrives on ensuring reliability, scalability, and performance in complex environments while embracing automation and continuous...

Hybrid
4 days ago
Bookmark Not interested
United Kingdom

You will play a key role in supporting and enhancing legacy systems critical to banking operations. The ideal candidate will have strong technical expertise in Assembler and related mainframe technologies, combined with solid experience in high-volume, regulated environments.

Hybrid
5 hours ago
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Gibbs Consulting IT Services & Solutions
Liverpool

You will play a key role in supporting and enhancing legacy systems critical to banking operations. The ideal candidate will have strong technical expertise in Assembler and related mainframe technologies, combined with solid experience in high-volume, regulated environments.

Hybrid
10 hours ago
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Anson McCade
United Kingdom

An exciting opportunity has arisen for an experienced Mainframe DB2 System Programmer to join a dynamic infrastructure engineering team, supporting mission-critical applications and data systems across enterprise platforms. This role is ideal for a professional who thrives on ensuring reliability, scalability, and performance in complex environments while embracing automation and continuous...

Hybrid
7 days ago
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Gibbs Consulting IT Services & Solutions
Newcastle upon Tyne

You will play a key role in supporting and enhancing legacy systems critical to banking operations. The ideal candidate will have strong technical expertise in Assembler and related mainframe technologies, combined with solid experience in high-volume, regulated environments.

Hybrid
10 hours ago
Kyndryl
London

You will bring deep expertise in mainframe technologiesand enterprise IT systems, combining hands-on technical capability with strategic thinking. Whether you focus on designing architectures, leading transformation projects, or implementing and optimising critical systems, your work will make a real difference.

Hybrid
4 hours ago
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Barclays Bank Plc
Canary Wharf E14 5HP

Join us as a Mainframe Performance Specialist, to support the z/OS Performance team in monitoring and improving the performance of Barclays’ mainframe systems. You’ll work across a broad range of Mainframe technologies to support system performance and reliability. This includes investigating infrastructure issues, using performance tools and platform features, contributing in-house code, and...

5 hours ago
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mainframe operator, United Kingdom
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Barclays Bank PLC
Knutsford

Join us at Barclays as a Mainframe DB2 System Specialist, where you'll help build and maintain resilient infrastructure platforms supporting vital applications and data systems. Apply cutting-edge engineering and automation to ensure reliability, scalability, and security across our core technologies. To be successful as a Mainframe DB2 System Specialist, you should have experience with: -...

5 hours ago
Bookmark Not interested
Barclays Bank PLC
Knutsford

Join us as a Mainframe Performance Specialist, to support the z/OS Performance team in monitoring and improving the performance of Barclays’ mainframe systems. You’ll work across a broad range of Mainframe technologies to support system performance and reliability. This includes investigating infrastructure issues, using performance tools and platform features, contributing in-house code, and...

5 hours ago
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Gibbs Consulting IT Services & Solutions
Sheffield

You will play a key role in supporting and enhancing legacy systems critical to banking operations. The ideal candidate will have strong technical expertise in Assembler and related mainframe technologies, combined with solid experience in high-volume, regulated environments.

Hybrid
10 hours ago
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Barclays Bank PLC
Poplar

Join us at Barclays as a Mainframe DB2 System Specialist, where you'll help build and maintain resilient infrastructure platforms supporting vital applications and data systems. Apply cutting-edge engineering and automation to ensure reliability, scalability, and security across our core technologies. To be successful as a Mainframe DB2 System Specialist, you should have experience with:...

5 hours ago
Bookmark Not interested
Barclays Bank PLC
Poplar

Join us as a Mainframe Performance Specialist, to support the z/OS Performance team in monitoring and improving the performance of Barclays’ mainframe systems. You’ll work across a broad range of Mainframe technologies to support system performance and reliability. This includes investigating infrastructure issues, using performance tools and platform features, contributing in-house code, and...

5 hours ago
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