cobol 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.

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.

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 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.

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 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...

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:...

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...

We’re looking for a skilled engineer with strong experience in IBM DataPower and Mainframe data systems to support secure data exchange, authentication services, and integration between legacy and modern platforms. The ideal candidate will combine data engineering fundamentals with middleware / security gateway expertise , ensuring data integrity, authentication, and performance across...

We’re looking for a skilled engineer with strong experience in IBM DataPower and Mainframe data systems to support secure data exchange, authentication services, and integration between legacy and modern platforms. The ideal candidate will combine data engineering fundamentals with middleware / security gateway expertise, ensuring data integrity, authentication, and performance across complex...

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...

The Amazon Web Services Professional Services (ProServe) team is seeking a skilled Delivery Consultant – Mainframe Migration to join our team at Amazon Web Services (AWS). In this role, you'll work closely with customers to design, implement, and manage AWS solutions that meet their technical requirements and business objectives. You'll be a key player in driving customer success through their...

A leading bank is looking for a senior mainframe engineer, specialised in Cobol to provide support and fix problems for their complex production and technical issues. Required Skills: Hands on Cobol developer experienceIMS DatabasesJCLProduction Support experience *3 days on site based out of their Chester or Bromley offices Job Title: Mainframe Engineer Location: Bromley, UK Job Type:...

Job Description Role Title: DataPower Developer Location: London, UK Work mode - hybrid, with 2 days per week at the London office Contract duration - Minimum 6 months. Should get extended till Dec-2026 Role Description: We are looking for an experienced DataPower Developer to join our team. The successful candidate will be responsible for diagnosing, troubleshooting, and resolving...

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...

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...

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...