26 to 50 of 61 Mainframe Jobs in the UK

place they want it, across our omnichannel businessThe technology supporting John Lewis Commercial is a blend of commercially available third-party platforms, bespoke in-house systems, and tightly coupled mainframe legacy applications, all interconnected through integrations with other areas of the business. These systems must not only be highly resilient but also adaptable, enabling us to enhance operational efficiency and More ❯

Role: Mainframe Developer Contract Length: 6 months – extensions available, project runs until 2027 Work Location: Hybrid Remote/Lancashire Start Date: ASAP Industry: Financial Services/Insurance IR35 Status: Outside IR35 Seeking a skilled Systems Analyst/Developer to join a major two-year migration and separation programme. The project focuses on migrating a portfolio from legacy mainframe systems to … a new outsourced platform model. This is a hands-on role suited to someone with deep IBM mainframe expertise who can hit the ground running. Responsibilities: Analyse and interrogate legacy mainframe applications to support source-to-target data mapping Play a critical role in build phase, developing code and executing data extracts based on client specifications Develop code in IBM … z-series mainframe technologies to extract data Work from agreed specs to support the data migration and build activity Support testing and validation phases in a waterfall-esque delivery model Collaborate with Solution Architects and Programme Leads to influence and adapt build scope as needed Active participation in daily stand-up calls with client Skills & Experience Required: Proven, recent development More ❯

Role: Mainframe Developer Start Date: ASAP – 19/12/25 Contract Length: 3 Months Work Location: Remote IR35 Status: Outside IR35 Join a critical public sector transformation project focused on decommissioning legacy mainframe systems. Urgently seeking an experienced Mainframe Developer with strong ICL VME & COBOL skills to support the migration of essential services (including payroll) off mainframe before an … end-of-year deadline. Key Responsibilities: Reverse-engineer and interpret ICL VME mainframe applications written in COBOL Support the migration of codebases into Windows DLL equivalents Work with existing scripts to ensure functionality is retained and transitioned effectively Provide technical expertise in legacy systems decommissioning Collaborate with internal teams to troubleshoot and validate transitions in a high-pressure, time-sensitive … environment Assist in GNU-based IBM tooling if experienced Skills & Experience Required: Strong hands-on experience with ICL VME mainframe systems Strong expertise in COBOL, analysing and reworking legacy business logic Understanding of mainframe-to-modern transitions Desirable: Experience with GNU on IBM environments Public sector experience More ❯

deployment to the live environment About the person Minimum 2+ years experience in a general insurance industry (essential) Minimum 1+ years of testing experience (desirable) Experience of working on mainframe (desirable) Ability to manipulate data using Microsoft Excel Meticulous attention to detail Flexibility to work on multiple project simultaneously Troubleshooting and logical analysis capabilities Strong drive to achieve results Enthusiastic More ❯

understanding of hardware, software and operating systems, along with advanced troubleshooting capabilities to address and resolve significant issues escalated from team members and/or clients. • Tests and certifies mainframes, servers and other infrastructure associated with networks and peripherals. You will be successful in this role if you have: High School Diploma or GED required May require technical certification or More ❯

Who are we? At Vertiv, we build products that keep critical technologies running 24/7. We are proud we were the first to protect mainframes with precision cooling systems. We were the first to introduce an integrated enclosure system to distributed networks. We help some of the largest names in the industry bring new capacity online faster and at More ❯

Salt is working with a global consultancy delivering critical infrastructure and platform services to a leading banking client . We are recruiting a CICS System Programmer to join their mainframe engineering team, responsible for maintaining a large-scale z/OS environment used for 24/7 operations. This is a specialist role for an experienced CICS contractor who can … global teams and vendors to ensure platform stability Contribute to automation initiatives and document operational best practices Essential Skills & Experience: Minimum 10 years' experience supporting or customising CICS in mainframe environments Minimum 5 years' experience with CICSplex and CICS Explorer Strong working knowledge of: Omegamon, Fault Analyzer, IPCS RACF and SMF 110 records SDSF, RMF, and other core z/ More ❯

Mainframe Developer (PL1/DB2) 6 months Lytham - x1 day a week or x1 every 2 weeks Outside IR35 Role Requirements: Knowledge/demonstrable proven recent experience using the following technologies - IBM z-series mainframe - PL1, SYNCSORT, DB2, IMS DB, MVS JCL, TSO, JobTrac, ENDEVOR, File Manager Prior experience in projects/programmes demonstrating experience in interrogating mainframe applications built More ❯

Mainframe Developer (PL1/DB2) 6 months Lytham - x1 day a week or x1 every 2 weeks Outside IR35 Role Requirements: Knowledge/demonstrable proven recent experience using the following technologies - IBM z-series mainframe - PL1, SYNCSORT, DB2, IMS DB, MVS JCL, TSO, JobTrac, ENDEVOR, File Manager Prior experience in projects/programmes demonstrating experience in interrogating mainframe applications built More ❯

career path can you expect to build in the role? Develop an understanding of the Payments industry and Payments processing Technical SME Knowledge of Card Solutions Technical knowledge of Mainframes Effective Communication Skills Organisation and Time Management Who we are looking for A bachelor's degree, preferred Computer Science, Maths or Engineering At least 4 years of relevant experience. Experience … with card schemes, payment processing or a related technical field. Technical expertise with mainframe technology including COBOL, JCL, CICS, VSAM, DB2, TSO/ISPF. A confident communicator with strong interpersonal skills Highly organised, with good time management skills and an ability to multi-task Pro-active - willing to ask questions and put forward ideas Ability to build a network and 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 with DevOps remote + on client site (Sheffield) forour growing team in the UK. Overview An exciting opportunity has been created for an experienced z/OS Mainframe … and supporting ISV products particularly from the vendors; IBM and Broadcom The ideal candidate for this role will have the below experience and qualifications: Must have extensive experience of mainframe systems programming. This is essential to the role Must have knowledge of iWS scheduling software Must have knowledge of SAS Desirable to have knowledge of MXG and MICS Must have More ❯

is fully onsite due to the nature of the role Here at Harvey Nash our client a leading financial services organisation is looking to recruit a hands-on experienced Mainframe Infrastructure Engineer . This role will see you leading a team within a fast-paced environment. You will be responsible for contributing to and overseeing the implementation, and ongoing support … experience for customers. Im looking to speak with candidates who have the below experience: Lead and manage a technical operations team in a fast-paced environment Extensive experience of mainframe technologies such as IBM Z Series hardware, as well as IBM and Broadcom products including CA7, CICS, DB2, Connect:Direct, RACF, MQ, and WebSphere A strong understanding of the management More ❯

in the pursuit of innovation! The IZOT product line includes BMC's Intelligent Z Optimization & Transformation products, which help the world's largest companies to monitor and manage their mainframe systems. The modernization of mainframe is the beating heart of our product line, and we achieve this goal by developing products that improve the developer experience, the mainframe integration, the … and 31-bit Assembler programming languages. Coding experience in a multitasking, reentrant and/or sysplex environment. Experienced creating functional designs/specifications from business requirements. Experience with IBM Mainframe environment (TSO/ISPF, JCL etc.). Excellent knowledge of z/OS structure and logic including knowledge of z/OS operating system internals. Experience in developing working code More ❯

System Analyst/Mainframe Developer Initial 6 Month Contract Hybrid Monthly visit to Lytham £500-£520pd (Outside IR35) We are currently seeking a skilled System Analyst/Mainframe Developer with proven experience in IBM z-series mainframe technologies. The ideal candidate will have a strong understanding of PL1, SYNCSORT, DB2, IMS DB, MVS JCL, TSO, JobTrac, ENDEVOR, and File Manager. … Role Requirements: Experience interrogation of mainframe applications built in the above technologies to support data mapping (e.g., Source to Target data fields). Proven experience in developing codebases in the specified technologies to undertake data extracts based on agreed specifications. Experience in large-scale migration programmes is advantageous. Background in Life, Protection, or Insurance roles is beneficial. Recent experience of More ❯

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: Experienced in the installation … maintenance, and upgrade of the IBM DB2 product and of DB2 related products (DB2 CA, DB2 connect, Data Studio,etc). Excellent understanding of Mainframe operating system tools: - TSO, JCL, REXX,SQL etc. Several years practical experience working as a DB2 Systems Programmer. Strong understanding of system performance and monitoring techniques. Some other highly valued skills may include: Experience with More ❯

IBM Cobol Natural Developer - West Yorkshire (3 days a week office based) £340 per day - outside IR35 Experienced IBM Mainframe Cobol Natural Developer required for new development, enhance and support work. You will support your team's work as well as independently create and finalize all the code on multiple small projects. Key skills: IBM Cobol DB2 Natural Adabas JCL … Strong programming skills in Mainframe technologies in both a batch and online environment IBM Cobol Natural Developer - West Yorkshire (3 days a week office based 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 remote + on client site (Sheffield) forour growing team in the UK. Overview The role as z/OS Mainframe Systems Programmer involves upgrading and supporting the z … products particularly from the vendors; IBM and Broadcom The ideal candidate for this role will have the below experience and qualifications: Must have extensive experience of z/OS Mainframe systems programming. This is essential to the role Must have knowledge of iWS scheduling software Must have knowledge of SAS Must have knowledge of Parallel Sysplex Desirable to have knowledge 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 ❯

IBM Mainframe Db2 and IMS System Programmer page is loaded IBM Mainframe Db2 and IMS System Programmer Apply locations Edinburgh time type Full time posted on Posted Yesterday time left to apply End Date: August 16, 2025 (13 days left to apply) job requisition id 135148 End Date Friday 15 August 2025 Salary Range £70,929 - £78,810 We support … flexible working - click here for more information on flexible working options Flexible Working Options Job Share Job Description Summary . Job Description JOB TITLE: IBM Mainframe Db2 and IMS System Programmer SALARY: £70,929 - £78,810 LOCATION(S): Edinburgh HOURS: Full time WORKING PATTERN: Our work style is hybrid, which involves spending at least two days per week, or … of our time at our location listed above. About this opportunity As an IMS & Db2 Systems Programmer on the zSeries Mainframe you'll be part of a team who are the technical authority for this area. This is a hands-on role where you'll configure and maintain products and services according to Group standards and policies (and to agreed More ❯

z/OS Systems Programmer - Mainframe (Fully Remote, UK-Based) - Up to £700 a day We are looking for a highly experienced z/OS Systems Programmer to join a contract assignment supporting enterprise-scale IBM Mainframe infrastructure. You'll be responsible for the installation, customization, maintenance, and troubleshooting of z/OS and related IBM products in a complex … support and mentor junior system engineers where needed. Experience 5+ years' hands-on experience as a z/OS Systems Programmer in a production environment. Deep knowledge of IBM Mainframe architecture and utilities. Strong experience with SMP/E, JES2, parmlib, HCD, and z/OSMF. Please apply immediately for further details & a confidential discussion. More ❯

can be confident our IT professionals have sizeable and interesting challenges every single day. In this role, you'll deliver highly complex technical support for systems and processes in mainframe environments, focusing on decommissioning and bug fixing. You'll help maintain and help migrate services according to Group standards and policies (and to agreed service levels) and will assist with … the delivery of investment funded work within mainframe environments - this includes out of hours. Additionally, you'll provide technical support (including incident and problem resolution for systems and processes in complex environments) - again this includes out of hours support. Key responsibilities Provide support for complex environments to tight timescales. Help drive the strategy and design across the mainframe development and … the future, investing in our technologies, workplaces, and colleagues to make our Group a great place for everyone. Including you. What you'll need Assembler programming and support in mainframe environments. A solid background in CICS Systems Programming or CICS Application Development Operational experience on z/OS systems Experience with decommissioning legacy systems Bug fixing and troubleshooting in complex More ❯

can be confident our IT professionals have sizeable and interesting challenges every single day. In this role, you'll deliver highly complex technical support for systems and processes in mainframe environments, focusing on decommissioning and bug fixing. You'll help maintain and help migrate services according to Group standards and policies (and to agreed service levels) and will assist with … the delivery of investment funded work within mainframe environments - this includes out of hours. Additionally, you'll provide technical support (including incident and problem resolution for systems and processes in complex environments) - again this includes out of hours support. Key responsibilities Provide support for complex environments to tight timescales. Help drive the strategy and design across the mainframe development and … the future, investing in our technologies, workplaces, and colleagues to make our Group a great place for everyone. Including you. What you'll need Assembler programming and support in mainframe environments. A solid background in CICS Systems Programming or CICS Application Development Operational experience on z/OS systems Experience with decommissioning legacy systems Bug fixing and troubleshooting in complex More ❯

IBM Cobol Natural Developer - West Yorkshire (3 days a week office based) £340 per day - outside IR35 (3-6 month contract) Experienced IBM Mainframe Cobol Natural Developer required for new development, enhance and support work. You will support your team's work as well as independently create and finalize all the code on multiple small projects. Key skills: IBM Cobol … DB2 Natural Adabas JCL Strong programming skills in Mainframe technologies in both a batch and online environment IBM Cobol Natural Developer - West Yorkshire (3 days a week office based More ❯

for our growing team in the UK. Job Description The z/OS Systems Hardware candidate should have technical, domain-level, and specialist skills to ensure that all the Mainframe Processors are operated, maintained, and constantly upgraded as technology advances. Your responsibilities will include: Supporting and maintaining the UK Mainframe Processor estate within a multi-LPAR, multi-site Sysplex environment … Upgrading the UK Mainframe estate to the next generation of IBM Processor Upgrading the Microcode levels on the Mainframe Processors, Coupling Facilities, HMCs, and TKEs Building and activating IODF/IOCDS configurations in support of changes to the Storage estate and other key projects Updating PR/SM definitions via HMC The ideal candidate for this role will have the … below experience and qualifications: Extensive experience of mainframe hardware support and configuration. This is essential to the role Knowledge of z/OS, HMC, HCD, TSO/ISPF, SDSF, JCL, CHPID Mapping tool, JES2 Knowledge of the latest IBM z processor generations z14, z15, z16 Sysplex and Coupling Facility knowledge Experience troubleshooting day-to-day incidents and problems Excellent problem More ❯

Contract Role: Mainframe Automation Engineer - IBM SA/NetView - Banking Sector - Inside IR35 Location: UK (Remote) or Denmark (Hybrid - 10 days/month onsite) Day Rate: £450-£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 major mainframe infrastructure services … to a leading banking client . We are recruiting a Mainframe Automation Engineer with strong skills in IBM System Automation , NetView , and REXX to join a critical team supporting one of the largest SysPlex environments in Europe. This is a highly technical role focused on enhancing automation for high-availability systems within a cloned infrastructure model. Key Responsibilities: Install, configure More ❯