17 of 17 Contract Mainframe Jobs in the UK

Contract Role - Mainframe Assembler Developer – Contract – Leeds/Halifax/Edinburgh/Hybrid – 06 Months Initial We are currently seeking a skilled and proactive Mainframe Assembler Developer to join a leading financial institution. 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. Role Overview: Job Title: Mainframe Assembler Developer Location: Leeds/Halifax/Edinburgh/Hybrid (2 days per week onsite) Contract Type: Contract Duration: 06 months initially Sector: Banking Required Skills & Experience: Proven experience with IBM Mainframe Assembler (HLASM) development. Strong understanding of z/OS , JCL , TSO … written and verbal. Nice to Have: Knowledge of regulatory and compliance requirements in the banking domain. Exposure to system modernization or migration projects. Experience with automated testing tools for mainframe environments. Please feel free to contact myself – Daisy Nguyen at Gibbs Consulting for a confidential chat to know more details about the role. Please also note: Due to the volume 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 ❯

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 ❯

level knowledge and experience with technical deployments of exposure/vulnerability management systems for large enterprises, across a diverse technology stack (IaaS/PaaS/SaaS/physical/mainframe/hybrid-cloud) and delivery lifecycles (Project/COTS applications, DevOps) Expertise with Qualys and other vulnerability and exposure management technologies Expertise in the full vulnerability management lifecycle Vendor and More ❯

NEW CONTRACT ROLE - ENDEVOR ADMINISTRATOR (MAINFRAME SUPPORT) UK-Based Candidates Only | 6-Month Contract | Hybrid - 2 Days Onsite (Manchester) To apply, email: THE OPPORTUNITY We're looking for an experienced Endevor Administrator to join a leading financial services organisation on a 6-month contract. This role will be responsible for managing and maintaining mainframe source code management environments using CA … Endevor , ensuring smooth release, version control, and deployment processes across multiple environments. This position is ideal for candidates with strong mainframe administration and Endevor configuration experience, who thrive in collaborative development and release management environments. THE ROLE Administer and maintain CA Endevor environments across multiple LPARs. Manage version control and change management processes for mainframe applications. Create and maintain processor … production deployments. Maintain accurate documentation for procedures, configurations, and troubleshooting. Ensure compliance with internal security and regulatory standards. TECHNICAL SKILLS/REQUIREMENTS 8+ years' experience in Endevor administration or mainframe application support . Strong working knowledge of JCL, TSO/ISPF, REXX, and CLIST . Experience with ACF2 or RACF for security administration. Familiarity with backup and storage management tools More ❯

requirements. Essential Skills and Experience: Strong experience with COBOL development. Hands-on experience with ICL VME and PL/SQL . Knowledge of structured programming and batch processing in mainframe environments. Ability to work effectively in a remote UK-based team. BPSS minimum security clearance (SC preferred). This is an excellent opportunity for a skilled COBOL developer to contribute 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 ❯

Contract Role: Endevor Administrator (Mainframe) Location: Hybrid - Manchester (2 days onsite per week) Duration: 6 months initial contract Rate: £350/day (Inside IR35) Eligibility: BPSS clearance required We are seeking an experienced Endevor Administrator to manage and support Mainframe source code management using CA Endevor. The successful candidate will be responsible for maintaining environments, supporting development teams, and ensuring … smooth release and deployment processes across multiple LPARs. This role offers the opportunity to work within a collaborative technical environment, contributing to essential Mainframe and release management operations. Key Responsibilities Administer and maintain CA Endevor environments across multiple LPARs. Manage version control and change management processes for Mainframe applications. Create and maintain processor groups, element types, and Endevor exits. Perform … production deployments. Document procedures, configurations, and troubleshooting steps. Ensure compliance with internal controls and regulatory standards. Required Skills and Experience Minimum of 8 years' experience in Endevor administration or Mainframe system support. Strong working knowledge of JCL, TSO/ISPF, REXX, and CLIST. Experience with ACF2 or RACF for security administration. Familiarity with Tivoli Storage Manager or similar backup tools. 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 ❯

Security Analyst - Mainframe RACF Location: Welwyn Garden City (Shire Park) - Hybrid Working Function: Technology Security and Capability Duration- fixed term contract - 6 months About the role We're seeking a skilled Mainframe Security Analyst to join a Security Operations & Detections team at one of the UK's leading retail organisations. You'll play a key role in protecting their mainframe … environments by supporting security initiatives, maintaining access controls, and responding to security alerts. Working closely with colleagues across Technology and the wider business, you'll help ensure their mainframe platforms remain secure, resilient, and well-controlled. This is a fantastic opportunity to contribute to large-scale enterprise security in a complex, high-impact environment. What you'll be doing Responding … to user requests and incidents in the RACF ticketing system. Reviewing and processing change requests for RACF access. Monitoring daily tasks and controls to maintain operational efficiency. Responding to mainframe security alerts. Administering RACF Role-Based Access Control (RBAC) and Privileged Access Management (PAM) systems. Managing access recertification with data owners. Creating and maintaining internal documentation, including runbooks, processes, and 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 ❯

Mainframe Systems Automation Engineer - Migration Project Contract: 6 months (likely extension) Location: Primarily remote working (occasional office visits in Nottingham) Start: ASAP We're looking for an experienced Systems Automation Engineer to support a major Mainframe migration project. You'll be joining during a critical phase of the project, helping to deliver through UAT, testing and decommissioning stages. Most of … software. Collaborate with internal stakeholders to ensure delivery milestones are met. Work flexibly, including occasional Sunday evening support during critical cutovers. What We're Looking For: Strong knowledge of Mainframe systems. Experience with OPSMVS, CA-View, CA-Deliver or Control-M. REXX experience highly desirable. Background in system automation, migrations or output management. Excellent communication and problem-solving skills. Splunk 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 ❯

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 ❯

Responsibilities: Configuration and administration of IBM z/OS mainframe network software. Configuration and administration of network related 3rd party system software. Provision of technical support for Mainframe Networking issues during the normal working day and out of hours on call support. Act as a Mainframe Networking resource for internal and external projects. Monitor the performance of mainframe networking components More ❯

Responsibilities: Configuration and administration of IBM z/OS mainframe network software. Configuration and administration of network related 3rd party system software. Provision of technical support for Mainframe Networking issues during the normal working day and out of hours on call support. Act as a Mainframe Networking resource for internal and external projects. Monitor the performance of mainframe networking components More ❯