1 to 25 of 29 Mainframe Jobs in London

and our communities. The Role Kyndryl Consult is the fastest-growing business within the organisation and instrumental to the company’s strategic growth objectives. We are looking for talented Mainframe Consultants, Mainframe Architects, and Mainframe Engineers who are passionate about delivering high-impact solutions for our clients. You will bring deep expertise in mainframe technologiesand enterprise IT systems, combining hands … roles, you’ll act as a trusted advisor and technical leader, translating complex technical challenges into actionable solutions for clients. You’ll design, implement, and modernise IT infrastructure and mainframe environments, while integrating cloud and enterprise systems to deliver scalable, innovative solutions. You’ll collaborate closely with clients, delivery teams, and other technical specialists to ensure every solution meets business … technology. This is your chance to work on complex, high-profile engagements while advancing your skills and career in a fast-growing, dynamic organisation. Key Responsibilities Lead and shape mainframe solutions across complex enterprise environments, bridging business strategy and technology execution. Design, implement, and modernize enterprise IT applications that are scalable, secure, and high performing. Drive DevOps and DevSecOps practices More ❯

acquire the remainder on the job. TAL, pTAL, COBOL85, SCOBOL, TACL, C/C++. Guardian, OSS, EMS, DDL, Escribe, FUP, TS/MP (Pathway), Inspect, TMF. Experience of IBM mainframe systems would be beneficial. Benefits Competitive salary based on demonstrated skills. Flexible working hours and location. Multicultural and friendly working environment. The opportunity to be a key member of our More ❯

proactive attitude towards learning new technologies and tools in the field of functional testing. Preferred Qualifications (Nice to have): Experience of testing the integration of Identity Solutions (SailPoint) with Mainframe security sub-systems e.g. RACF Certification in software testing (e.g., ISTQB Certified Tester) or relevant professional certifications. Knowledge of continuous integration/continuous deployment (CI/CD) pipelines and tools More ❯

proactive attitude towards learning new technologies and tools in the field of functional testing. Preferred Qualifications (Nice to have): Experience of testing the integration of Identity Solutions (SailPoint) with Mainframe security sub-systems e.g. RACF Certification in software testing (e.g., ISTQB Certified Tester) or relevant professional certifications. Knowledge of continuous integration/continuous deployment (CI/CD) pipelines and tools More ❯

analyse, and document business and technical requirements, transforming them into actionable deliverables. Develop and maintain the benefits realisation profile, ensuring traceability of business value and ownership. Provide expertise on Mainframe LAM processes, data, and roles. Define clear and testable acceptance criteria to validate delivery outcomes. Analyse the Target Operating Model (TOM) and migration strategy to refine scope, identify changes, and More ❯

to the success of our enterprise-wide infrastructure and application services. Please make sure you read the following details carefully before making any applications. If you're passionate about mainframe systems, thrive in high-impact environments, and want to shape the future of banking technology, we d love to hear from you. To be successful as an IMS Systems Programmer More ❯

has already delivered millions of pounds of benefits. Our future plans are no less ambitious. Over the next 3-5 years we will simplify our Group Finance technology, removing mainframes, increasing integrations and upgrading systems, enabling Tesco to benefit from the latest innovations in the market, including AI. We are looking for an experienced Senior Technical Programme Manager to join More ❯

has already delivered millions of pounds of benefits. Our future plans are no less ambitious. Over the next 3-5 years we will simplify our Group Finance technology, removing mainframes, increasing integrations and upgrading systems, enabling Tesco to benefit from the latest innovations in the market, including AI. We are looking for an experienced Senior Technical Programme Manager to join More ❯

Mainframe Engineer - OPSMVS - CA - REXX - 6 months - UK based remote I have an immediate opportunity for a Mainframe Engineer to join an ongoing migration project moving from Broadcom to BMC products. This is a 6-month contract role, offering fully remote working, but applicants must be based in the UK. I am keen to speak with candidate who have: Strong … knowledge of Mainframe systems, including: OPSMVS CA-View and CA-Deliver REXX General Mainframe operations (JCL, ISPF, JES2, z/OS) Proven experience with Mainframe System Automation software administration. Desirable Skills Familiarity with: BMC AMI Ops Automation and Control-M Output Management I-Dash for CA7 administration SAS, REST APIs, and Windows Server ServiceNow and ITIL processes Agile methodologies Basic More ❯

the technical team on development and implementation journeys. The role is centered on enabling and securing data flows between various enterprise systems, including mobile applications, cloud services, and legacy mainframe systems click apply for full job details More ❯

and implement action plans, follow up and meet set targets. Work with O/S on accounts as applicable. Sales Administration and systems – Effectively use all computer systems - SAM, Mainframe, IAP, WIRE, Lotus Notes, etc. Good understanding and proficient use of Microsoft Excel. Manage PC filing, other paperwork, processes and engage relevant internal support to provide an efficient and timely More ❯

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 supporting diagnostic and … of a collaborative environment. Scroll down for a complete overview of what this job will require Are you the right candidate for this opportunity To be successful as a Mainframe Performance Specialist, you should have experience with: IBM Mainframes, including TWS, CICS, IMS, MQ, DB2, and configuring System and LPAR settings on z15 onwards. Performance and observability tools such as … utilities using REXX. Investigating infrastructure issues and applying knowledge of the major incident process. Some other highly valued skills may include: Familiarity with Endevor and SMF housekeeping. Experience supporting Mainframe environments in financial services. Knowledge of DB2 performance tuning. You may be assessed on the key critical skills relevant for success in role, such as risk and controls, change and More ❯

Mainframe System Automation Engineer 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 … company, and the role can be worked fully remotely. There may be a requirement to be on-call at certain points, but the role is Monday - Friday. Essential Skills: Mainframe Automation OPSMVS REXX Mainframe Operations (ISPF, JCL, z/OS etc.) Desirable Skills: CA-View/CA-Deliver I-Dash Administration Splunk (nice to have) This is a long-term More ❯

Mainframe System Automation Engineer 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 … company, and the role can be worked fully remotely. There may be a requirement to be on-call at certain points, but the role is Monday - Friday. Essential Skills: Mainframe Automation OPSMVS REXX Mainframe Operations (ISPF, JCL, z/OS etc.) Desirable Skills: CA-View/CA-Deliver I-Dash Administration Splunk (nice to have) This is a long-term More ❯

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 requirements More ❯

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 requirements More ❯

Mainframe Engineer - OPSMVS - CA - REXX - 6 months - UK based remote I have an immediate opportunity for a Mainframe Engineer to join an ongoing migration project moving from Broadcom to BMC products. This is a 6-month contract role, offering fully remote working, but applicants must be based in the UK. I am keen to speak with candidate who have: Strong … knowledge of Mainframe systems, including: OPSMV... More ❯

Mainframe Engineer - OPSMVS - CA - REXX - 6 months - UK based remote I have an immediate opportunity for a Mainframe Engineer to join an ongoing migration project moving from Broadcom to BMC products. This is a 6-month contract role, offering fully remote working, but applicants must be based in the UK click apply for full job details More ❯

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 enterprise environments. Key Responsibilities: Design, implement, and … maintain IBM DataPower Gateway solutions for secure API, web service, and data access. Configure and manage authentication and authorisation mechanisms (OAuth, LDAP, SAML, certificates, etc.). Support integration between mainframe systems (z/OS, DB2, MQ) and modern data platforms. Develop, test, and optimise data flows, ensuring scalability, performance, and compliance . Troubleshoot DataPower and mainframe data connectivity or security … Strong hands-on experience with IBM DataPower Gateway (XI52/IDG/v10) . Solid understanding of authentication, authorisation, and encryption protocols (TLS, OAuth, JWT, SAML). Experience with Mainframe technologies (COBOL, DB2, JCL, MQ, z/OS Connect, API Connect). Knowledge of API integration, data pipelines, and ETL processes . Scripting or automation skills (Python, Shell, or Groovy More ❯

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 enterprise environments. Key Responsibilities: Design, implement, and … maintain IBM DataPower Gateway solutions for secure API, web service, and data access. Configure and manage authentication and authorisation mechanisms (OAuth, LDAP, SAML, certificates, etc.). Support integration between mainframe systems (z/OS, DB2, MQ) and modern data platforms. Develop, test, and optimise data flows, ensuring scalability, performance, and compliance . Troubleshoot DataPower and mainframe data connectivity or security … Strong hands-on experience with IBM DataPower Gateway (XI52/IDG/v10) . Solid understanding of authentication, authorisation, and encryption protocols (TLS, OAuth, JWT, SAML). Experience with Mainframe technologies (COBOL, DB2, JCL, MQ, z/OS Connect, API Connect). Knowledge of API integration, data pipelines, and ETL processes . Scripting or automation skills (Python, Shell, or Groovy More ❯

environment issues related to the Hermes project, focusing on DataPower appliances and related infrastructure.- Develop, configure, and maintain IBM DataPower Gateway services to meet project requirements.- Collaborate closely with mainframe teams to understand interdependencies and troubleshoot integration points where necessary.- Monitor AWS cloud resources including CloudWatch for logging and alerting, DynamoDB for database management, and AWS Lambda for serverless compute … automation using but not limited to Python, Shell scripting, Gitlab pipeline Required Skills and Qualifications: - Proven experience in IBM DataPower development, configuration, and troubleshooting within enterprise environments.- Familiarity with mainframe systems, integration with DataPower where applicable.- Good working knowledge of AWS services, particularly CloudWatch, DynamoDB, and Lambda, including monitoring, troubleshooting, and optimisation.- Excellent verbal and written communication skills to effectively More ❯

tablespaces, tables, views and indexes etc. • Configuring HADR between servers. • Supporting various windows applications in State Farm like Philbert, WinSQL and NLP etc. • Involved in Disaster Recovery exercise. • Cataloging mainframe databases in open systems to make the mainframe databases available to open systems users. • Resolving user issues related to database. • Granting access to users and revoking it from users. • Monitoring More ❯

tablespaces, tables, views and indexes etc. • Configuring HADR between servers. • Supporting various windows applications in State Farm like Philbert, WinSQL and NLP etc. • Involved in Disaster Recovery exercise. • Cataloging mainframe databases in open systems to make the mainframe databases available to open systems users. • Resolving user issues related to database. • Granting access to users and revoking it from users. • Monitoring More ❯

the technical team on development and implementation journeys. The role is centered on enabling and securing data flows between various enterprise systems, including mobile applications, cloud services, and legacy mainframe systems. Your Responsibilities: Provide expert support and timely resolution of environmental issues related to the project, focusing on DataPower appliances and related infrastructure. Develop, configure, and maintain IBM DataPower Gateway … services to meet project requirements. Collaborate closely with mainframe teams to understand interdependence and troubleshoot integration points where necessary. Monitor AWS cloud resources including CloudWatch for logging and alerting, DynamoDB for database management, and AWS Lambda for serverless compute tasks related to project workflows. Implement best practices for environment stability, performance tuning, and security compliance. Produce detailed technical documentation, status … limited to Python, Shell scripting, GitLab pipeline. Your Profile Essential Skills/Knowledge/Experience: Proven experience in IBM DataPower development, configuration, and troubleshooting within enterprise environments. Familiarity with mainframe systems and integration with DataPower where applicable. Good working knowledge of AWS services, particularly CloudWatch, DynamoDB, and Lambda, including monitoring, troubleshooting, and optimisation. Excellent verbal and written communication skills to More ❯

clients maximize value in their infrastructure resources, while optimizing infrastructure performance and cost. Project is to simplifying and digitising client’s technology stack while continuing to operate large-scale mainframe and Linux estates. This role owns the Linux-on-Z platform footprint: ensuring resilience, performance, security and smooth integration with cloud and distributed services. Key responsibilities Design, deploy, administer and … operations (Ansible, Terraform, shell/python), CI/CD pipelines for platform-level changes. Monitor platform health, investigate incidents, perform root-cause analysis and drive permanent fixes. Collaborate with mainframe z/OS, storage, networking and middleware teams to manage cross-platform integration (batch scheduling, channel/subsystem config, FICON storage). Implement and maintain platform security controls, hardening and … management and guest lifecycle. Solid Linux sysadmin skills: kernel tuning, package management, troubleshooting, scripting (bash + Python preferred). Experience with automation tools: Ansible, Terraform or equivalent. Understanding of mainframe hardware/IO concepts (channel subsystem, FICON, zSeries fundamentals) and basic z/OS interplay. Good knowledge of monitoring/observability (CA WatchTower) and incident management (ITIL practices). More ❯