senior mainframe developer jobs in Greater London

You will need to have a minimum of 8 years experience as an IBM Cobol Developer and the ability to lead projects and more junior members of the team. A financial or Banking background would be advantageous.

Paladign/Mainframe Developer Duration: initial 1 year contract Workload: Full time hours Setup: Contractor inside IR35 Location: Hybrid – 3 days/week onsite, 2 days remote The information below covers the role requirements, expected candidate experience, and accompanying qualifications. We’re urgently seeking a seasoned Paladign/Mainframe Developer to support and enhance a core wealth...

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.

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.

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...

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...

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...

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...

You will collaborate with HR squad members to ensure user stories and artifacts meet the needs of the Product Owner, and key stakeholders.

You will use your deep knowledge of staffing applications and business process to support the Product Owner with backlog prioritization.

Job Description White Collar Factory (95009), United Kingdom, London, London Senior Software Development Engineer - Services About this role We are seeking a Senior Software Engineer who can walk in the shoes of our users, communicate & collaborate with teams in Business, Technology and Operations, bringing a passion for using software and technology to create impactful solutions. To be...

Java Mainframe Developer The Role Design, develop, and maintain Java-based applications. Integrate and interface with Mainframe systems (COBOL, JCL, DB2, etc.). Write and maintain Linux shell scripts for automation, monitoring, and deployment tasks. Should have rich knowledge in Software Development Life Cycle Methodologies; excellent communication and interpersonal skills, capable of resolving...

Senior TM1 Developer - IBM Planning Analytics Ensure you read the information regarding this opportunity thoroughly before making an application. 12 Months - Fixed Term Contract - Potential to Extend Circa £90k - £95K + Benefits Package Hybrid - Central London or Oxfordshire MUST be Eligible to work in the UK - Cannot provide sponsorship Global organisation seeking to secure a Senior TM1...

Senior Golang Developer - Web/Vulnerability Scraping If you are considering sending an application, make sure to hit the apply button below after reading through the entire description. 3-Month Rolling Contract (up to 2 years) £600-£650 per day - Inside IR35 Hybrid - London 3 days per week & 2 days working from home Our global media and consumer technology client is seeking a Senior Back End...

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.

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...

You will act as a trusted advisor and thought partner to senior business leaders, aligning talent development strategies with evolving business priorities. Through personalized 1:1 development support, you will support a diverse portfolio of BCG Vantage professionals, enabling them to be successful in their roles and careers.

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:...

Paladign/Mainframe Developer Duration: initial 1 year contract Workload: Full time hours Setup: Contractor inside IR35 Location: Hybrid – 3 days/week onsite, 2 days remote We’re urgently seeking a seasoned Paladign/Mainframe Developer to support and enhance a core wealth management system used by our client in the financial services sector. Key Responsibilities: - Analyse business...

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...

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...