11 of 11 Remote Mainframe Jobs in London

Role : Mainframe Test Lead Location : London Work Mode : Hybrid Job Description: The objective of this role is to validate the Test coverage and Testing evidence that the upgrades made to DB2, IMS, MQ Subsystems do not impact the application functionality. In addition to the above, the role requires to identify the application regression test cases associated to the below subsystems … hence a deep understanding of the Mainframe systems i.e. DB2, IMS, MQ, COBOL, JCL are essential. Key Responsibilities: Lead end-to-end testing efforts for mainframe applications and APIs. Design and implement testing approach, Test plan, and Review Test cases for mainframe systems involving IMS and MQ. Collaborate with development, business, and QA teams to understand requirements and ensure test … and manage test data. Identify, document, and track defects using tools like JIRA or HP ALM. Ensure compliance with quality standards and best practices. Required Skills: Strong experience in mainframe testing (COBOL, JCL, DB2). Hands-on experience with IMS/CICS and IBM MQ . Proficiency in API testing using tools like Postman , SoapUI , or ReadyAPI . Experience with More ❯

both professionally and personally, we ensure a bright future for NTT DATA and for the people who work here. NTT DATA is currently looking for a z/OS Mainframe Storage Consultant on a hybrid working model (remote + on client site, either London or Sheffield) for our growing team in the UK. Responsibilities zSeries Storage Management Working and partnering … . If you'd like more information on your EEO rights under the law, please click here . For Pay Transparency information, please click here . Job Segment: Embedded, Mainframe, Data Center, Linux, Consulting, Technology More ❯

Mainframe Security Architect - z/OS | RACF | ACF2 Were seeking an experienced Mainframe Security Architect to join an enterprise infrastructure team, with a focus on safeguarding their IBM Z Series environments. You will be at the forefront of mainframe security strategy, designing and implementing robust access controls, monitoring systems, and risk management frameworks. This is a high-impact role with … wide scope for technical authority and strategic influence across a complex, high-volume infrastructure. Key Responsibilities: Architect and maintain end-to-end security frameworks for IBM Z Series mainframe environments. Lead threat modeling, vulnerability assessments, and remediation plans specific to z/OS, RACF, ACF2 or Top Secret environments. Collaborate with infrastructure, application, and compliance teams to implement secure configurations … control models. Drive security policy enforcement across core systems including CICS, DB2, IMS, and MQ. Evaluate and integrate security tools (e.g. IBM zSecure, CA ACF2 utilities, encryption modules) into mainframe operations. Experience: Proven experience as a security architect or engineer in z/OS or IBM Z Series environments . Strong command of RACF , ACF2 , or Top Secret mainframe security More ❯

both professionally and personally, we ensure a bright future for NTT DATA and for the people who work here. NTT DATA is currently looking for a z/OS Mainframe Systems Programmer for our growing team in the UK, based remotely or on-site in Sheffield. Overview The role involves upgrading and supporting the z/OS operating system and … Upgrading, maintaining, and supporting ISV products from vendors such as IBM and Broadcom The ideal candidate will have the following experience and qualifications: Extensive experience with z/OS Mainframe systems programming (essential) Knowledge of iWS scheduling software Knowledge of SAS Knowledge of Parallel Sysplex Desirable: knowledge of MXG and MICS Proficiency in z/OS, SMP/E, TSO … team across more than 50 countries, providing services in consulting, data, AI, industry solutions, and infrastructure management. Headquartered in Tokyo, part of NTT Group. Visit us at Job Segment: Mainframe, Programmer, Developer, Consulting, Information Technology, Technology More ❯

Transformation Solutions, with a deep understanding of system design decisions and their impact on scalability, resilience, and supportability. Experience with data modelling and understanding of Data Architecture. Exposure to mainframe systems and integration. Familiarity with Docker and container orchestration tools such as Kubernetes. Understanding of authentication and authorisation concepts, including experience designing and implementing zero trust models. Knowledge of enterprise More ❯

Contract Role: Mainframe Performance and Capacity Analyst - Banking - Inside IR35 Location: UK (Remote) or Denmark (Hybrid - 10 days/month onsite) Rate: £475-£575/day (Inside IR35, via umbrella) Duration: 6 months+ Start: ASAP Client: Global Consultancy, End Client in the Banking Sector Salt is working with a global consultancy delivering high-level mainframe optimisation services to a major … banking client . We are recruiting an experienced Mainframe Performance and Capacity Analyst to support proactive tuning and capacity planning across critical z/OS environments. This role sits within a Performance Competence Centre, with responsibility for system and application performance diagnostics, workload forecasting, and tooling optimisation. Key Responsibilities: Monitor, analyse, and tune mainframe system and application performance Conduct capacity … Develop and maintain custom tooling and dashboards Liaise with technical teams to prevent capacity-related issues Create documentation, reports, and performance improvement plans Essential Skills: 7+ years' experience in mainframe performance tuning and capacity planning Strong knowledge of SMF, RMF, WLM , and performance management tooling (APA, MXG, SAS) Ability to analyse batch and online application performance Comfortable working in high More ❯

key IT application controls, including automated business controls and IT general controls, and understanding of change execution and delivery risks. Experience in auditing Operating Systems (e.g., UNIX/Linux, Mainframe, Windows Server, and Windows Desktop), Distributed Systems (e.g., Storage, Backups, and Databases) Network devices (e.g., Routers, Switches, and Firewalls) and data centre resilience. Ability to lead and take ownership for More ❯

Contract Role: Mainframe DB2 Systems Programmer - Banking - Inside IR35 Location: UK (Remote) or Denmark (Hybrid - 10 days/month onsite) Rate: £450-£550/day (Inside IR35, via umbrella) Duration: 6 months+ Start: ASAP Client: Global Consultancy, End Client in the Banking Sector Salt is partnering with a global consultancy supporting a major banking programme , and is looking for an … experienced Mainframe DB2 Systems Programmer to join their infrastructure team. You will be responsible for maintaining a stable, secure, and highly available DB2 environment within a large-scale SysPlex setup . This includes performing upgrades, supporting disaster recovery, and tuning for performance. Key Responsibilities: Install, upgrade, and customise DB2 and related mainframe tooling Perform diagnostics, root cause analysis, and issue … programmers, and infrastructure teams Provide 24x7 on-call support on a rota basis Document best practices, procedures, and runbooks Essential Skills: 7+ years of DB2 systems programming in a mainframe environment Experience in large data sharing SysPlex setups Strong troubleshooting across both infrastructure and DB2 layers Proven capability in performance tuning , monitoring, and system stability Desirable Skills: Experience with IDAA More ❯

Contract Role: Mainframe DB2 Systems Programmer - Banking - Inside IR35 Location: UK (Remote) or Denmark (Hybrid - 10 days/month onsite) Rate: £450-£550/day (Inside IR35, via umbrella) Duration: 6 months+ Start: ASAP Client: Global Consultancy, End Client in the Banking Sector Salt is partnering with a global consultancy supporting a major banking programme , and is looking for an … experienced Mainframe DB2 Systems Programmer to join their infrastructure team. You will be responsible for maintaining a stable, secure, and highly available DB2 environment within a large-scale SysPlex setup . This includes performing upgrades, supporting disaster recovery, and tuning for performance. Key Responsibilities: Install, upgrade, and customise DB2 and related mainframe tooling Perform diagnostics, root cause analysis, and issue … and infrastructure teams Provide 24 7 on-call support on a rota basis Document best practices, procedures, and runbooks Essential Skills: 7+ years of DB2 systems programming in a mainframe environment Experience in large data sharing SysPlex setups Strong troubleshooting across both infrastructure and DB2 layers Proven capability in performance tuning , monitoring, and system stability Desirable Skills: Experience with IDAA More ❯

United Kingdom 2 days ago London, England, United Kingdom 1 week ago Head of Sales Financial Institutions & Banks London, England, United Kingdom 6 days ago Senior Director - Product Management - Mainframe (Remote) London, England, United Kingdom 9 hours ago London, England, United Kingdom 1 week ago Product and Proposition Director - Challenger Bank London, England, United Kingdom 1 month ago Vice President More ❯

remote 12-month contract £450/day overall assignment rate to umbrella Working with a financial services client who are looking for a DB2 DBA, this will not be mainframe focused but LUW. DB2 DBA, key responsibilities: Manage and test disaster recovery procedures; restore databases using DB2 tools; ensure data integrity and minimal downtime. Design and maintain automated backup strategies More ❯