1 to 25 of 38 Mainframe Jobs in the UK excluding London

Contract Mainframe Solution Architect 📍 UK-Based | Hybrid/Remote ⏳ 6-Month Contract (Outside IR35) 💰 Competitive Daily Rate We are seeking an experienced Mainframe Solution Architect for a contract opportunity with a leading organisation. This role is ideal for a generalist with broad expertise across z/OS, CICS, DB2, IMS … and mainframe modernisation . You’ll be responsible for designing and optimising mainframe architectures , supporting cloud migrations, API integrations, and automation initiatives . Key Responsibilities: ✅ Design and implement scalable, secure, and high-performance mainframe solutions ✅ Define architecture roadmaps and ensure alignment with IT and business strategies ✅ Lead mainframe modernisation , including … Provide technical leadership in integration, automation, and performance tuning ✅ Collaborate with enterprise architects, engineers, and key stakeholders Required Skills & Experience: ✔ Proven experience as a Mainframe Solution Architect in complex enterprise environments ✔ Expertise in z/OS, CICS, DB2, IMS, COBOL, JCL, REXX, and Assembler ✔ Experience with mainframe modernisation, cloud integration More ❯

and share permissions, group policy, logon scripts, std ports for SMB, AD, SFTP/SSH, HTTP(S). Desirable skills/knowledge of 3270 mainframe, telnet, Oracle and SQL Server ODBC and TNS connections. IBM DB2 and CICS Transaction Gateway. End User Support: Business operations, project services including system developers More ❯

operating system Upgrading, maintaining and supporting ISV products particularly from the vendors; IBM and Computer Associates (CA) Production support Must have extensive experience of mainframe systems programming. Must have knowledge of a combination z/OS, SMP/E, TSO/ISPF, USS, SDSF, JCL. Must have knowledge of IBM More ❯

A global leader in mission-critical IT infrastructure services is seeking an experienced and innovative Mainframe Architect. This organization specializes in designing, managing, and modernizing enterprise-grade technology environments across industries, helping clients transform legacy systems and accelerate cloud adoption. Position Overview The Mainframe Architect plays a pivotal role in … with client objectives. In this role, the architect leads engagements with enterprise clients, gathering business requirements, defining solution architectures, and driving the modernization of mainframe systems. The position also involves mentoring teams, collaborating with multi-disciplinary experts, and managing integration with cloud platforms and modern technologies. Key Responsibilities Serve as … the subject matter expert for mainframe database architectures, providing leadership in solution design and technical delivery. Collaborate with clients to define success criteria, gather inputs, and translate business requirements into scalable technical solutions. Design, implement, and optimize mainframe databases and subsystems, ensuring high availability, performance, and security. Lead modernization initiatives More ❯

Solution Architects to help us modernise from legacy platforms to a future-ready architecture. Why Join Us? You enjoy driving results from transforming monolithic, mainframe-based platforms into cloud-native, event-driven, API-first architectures. Embed architecture patterns and reusable frameworks that make engineering teams more efficient. Work with Azure More ❯

to a custom Grants Module. Work involves planning and analysis of user requirements, procedures, and process automation. Technical expertise in re-platforming an existing mainframe system to a PeopleSoft Bolt-on module. May provide guidance or supervise the work of others. Work under general to minimal supervision, with moderate to More ❯

work on enterprise software used by many of the world's largest organizations. You'll contribute to developing compilers, IDE integrations, runtime APIs, and mainframe emulation environments -building tools that support business-critical applications across Windows, Unix, Linux, Containers, and the Cloud. As part of a collaborative, agile team , you More ❯

vendors; IBM and Computer Associates (CA) Production support. The ideal candidates for this role will have the below experience: Must have extensive experience of mainframe systems programming. This is essential to the role Must have knowledge of a combination z/OS, SMP/E, TSO/ISPF, USS, SDSF More ❯

vendors; IBM and Computer Associates (CA) Production support. The ideal candidates for this role will have the below experience: Must have extensive experience of mainframe systems programming. This is essential to the role Must have knowledge of a combination z/OS, SMP/E, TSO/ISPF, USS, SDSF More ❯

application tuning. Experience with fault-tolerant systems and disaster recovery in high-availability environments. Strong communication skills (oral & written) Skills Security Embedded system Deployment mainframe COBOL communication and leadership skills cross team collaboration Job Title: Base 24 Engineer Location: Swindon, UK Job Type: Contract Trading as TEKsystems. Allegis Group Limited More ❯

10.5+) under BS2000 EntireX Broker EntireX RPC Server EntireX Security Broker ACI & RPC knowledge EntireX Broker Jobs & Configuration * Operating Systems: Knowledge of BS2000 ( Fujitsu Mainframe ) including Startup JCL Nice to Have Technical Skills * EntireX Listeners * EntireX Reliable RPC Understanding * EntireX Application Monitoring * EntireX RPC-ACI Bridge * Operating Systems: Linux * Programming More ❯

10.5+) under BS2000 EntireX Broker EntireX RPC Server EntireX Security Broker ACI & RPC knowledge EntireX Broker Jobs & Configuration * Operating Systems: Knowledge of BS2000 ( Fujitsu Mainframe ) including Startup JCL Nice to Have Technical Skills * EntireX Listeners * EntireX Reliable RPC Understanding * EntireX Application Monitoring * EntireX RPC-ACI Bridge * Operating Systems: Linux * Programming More ❯

do As a IT Support Apprentice within our Digital X – Core Solutions Team you will : Provide support to ensure the operational health of the Mainframe platform covering Incident and Change for Databases, Networks or system Capacity and Performance. Support the Team’s activities to ensure that the platform integrity is More ❯

Developer to support the Cash Draw and Expenditure Reporting (CDER) Project. Work involves updating and migrating a 20-year-old legacy system from a mainframe environment to a more robust PeopleSoft-based solution. Assists in the design and development of PeopleSoft application based on business requirements. Experience with developing bolt More ❯

Mainframe Programmer required by a successful software company located in Southampton. The Mainframe Programmer will provide support to the development team working on IBM mainframes and will help maintain remote mainframe resources as well as in-house migration tools. Key experience z/OS assembler REXX RACF user management DASD More ❯

Mainframe Programmer required by a successful software company located in Southampton. The Mainframe Programmer will provide support to the development team working on IBM mainframes and will help maintain remote mainframe resources as well as in-house migration tools. Key experience z/OS assembler REXX RACF user management DASD More ❯

role, you will need: Relevant Experience: Proven experience in COBOL development, with a strong track record of working with ICL/Fujitsu, or other mainframe systems. Skills: Proficiency in COBOL programming and familiarity with ICL/Fujitsu environments. Attributes: Excellent problem-solving skills, attention to detail, and the ability to More ❯

and platforms within the supported domains. Looks beyond the obvious for continuous improvement opportunities. Minimum Qualifications Minimum 8+ years of software development experience in Mainframe/Big Data/Java technologies. Ability to analyze Splunk logs, Java code to identify root cause and permanent solution. Demonstrated experience with Agile or More ❯

high levels of service delivery. * Delivery of projects on time and on budget in line with the business requirements. About You : AS400/iSeries Mainframes (preferable) RPG Programming (preferable) Microsoft 365 stack- including Power Platform, Azure, SharePoint Knowledge of cloud platforms and technologies Knowledge of data warehousing, architecture and networks More ❯

levels A track record of leading teams, driving performance and fostering collaboration Desirable expertise Experience with cloud architecture and security frameworks Understanding of middleware, mainframe, and batch management systems Familiarity with development lifecycle methodologies Ability to develop innovative audit tools or approaches More ❯

Domain. In particular those around Virtualisation and Mobility Technologies. Basic knowledge across a broad range of technologies, including voice and data networking, internet technologies, mainframe and server platforms, operating systems, database management systems, desktop systems, email, directory services, data centre and comms room management. Deep knowledge of communications vendor Security More ❯

We are hiring for Automation Tester (Mainframe OR API OR Java) Location : Hybrid 2-3 days per week in Northampton OR Knutsford Office Proven experience as an Automation Tester with a strong focus on both mainframe and distributed systems. Solid understanding of the software testing lifecycle and various testing methodologies. … executing automated tests using Java, Cucumber JVM, and Selenium. Familiarity with DevOps tools (AWS, Jenkins) and CI/CD pipelines. Strong working knowledge of mainframe technologies: JCL, CICS, SQL (DB2 preferred), FileAid, AbendAid, and a basic understanding of COBOL and VSAM Experience testing REST APIs using tools like Rest Assured. … Proficiency in working with relational databases (MS SQL Server and Oracle DB). Key Skills : Automation QA/Testing/Mainframe/JCL, CICS, SQL/DB2/Mainframe More ❯

Benefits. Location: UK Remote - Office visit 1/2 per annum if required Contract type : Permanent, full time. Our Team We manage the IBM Mainframe and Mid-Range estate for the bank which includes the performance of the hardware, upkeep of Operating Systems and maintenance of 3rd Party software. This … environment Recent experience of core modernisation and managing digital demands, as well as previous application development experience in CICS. Experience and skills in other mainframe technologies, such as Cobol, z/OS SMP/E, Innovation Access Method, SYSB-II, cProf and Dynatrace. Red Hot Rewards Generous holidays - 38.5 days More ❯

Mainframe Pre-Sales Consultant We're working on behalf of a leading global technology services provider to identify a Mainframe Pre-Sales Consultant to join their UK team. This role sits at the intersection of technical architecture and commercial strategy, supporting enterprise clients across sectors such as finance, government, and … telecoms. You’ll play a pivotal role in helping clients modernise, optimise, and manage their mainframe environments – from traditional z/OS platforms to hybrid cloud integration. As a Mainframe Pre-Sales Consultant, you will partner closely with sales, delivery, and product teams to shape compelling, technically sound solutions for … technical insight, and help translate business needs into scalable, secure infrastructure strategies. Key Responsibilities Lead technical discovery sessions with enterprise clients to understand existing mainframe estates and future-state requirements. Design and position mainframe solutions (z/OS, DB2, CICS, IMS, MQ) across infrastructure, tooling, and managed services. Support RFP More ❯

Platform Architect – Mainframe (z/OS) Join a Global Leader in Enterprise Infrastructure Services Our client is a global technology services provider specialising in mission-critical IT infrastructure for some of the world’s most complex and high-profile organisations. We're currently seeking an experienced Platform Architect with deep … expertise in mainframe systems to join their UK architecture team. This is a unique opportunity to work on large-scale infrastructure transformation programmes, helping enterprise clients modernise their legacy environments, improve resilience, and integrate with cloud-native technologies. As a Platform Architect, you'll be responsible for shaping and guiding … functional teams to ensure infrastructure is secure, scalable, and aligned to evolving business needs. Key Responsibilities Define end-to-end architecture strategies for enterprise mainframe platforms (z/OS, CICS, DB2, MQ, RACF). Lead platform design and integration with distributed/cloud systems using modern APIs and messaging frameworks. More ❯