24 of 24 COBOL Jobs in the UK

Hybrid Mainframe Developer — CICS / z/OS Expert

Location
Greater London, England, United Kingdom
Consulting Limited is seeking a Mainframe Developer with experience in IBM Mainframe technologies, including CICS, z/OS, and COBOL, to work on critical banking applications. The role involves development, maintenance, and optimization of legacy systems, with a focus on performance tuning and production support. Candidates should have strong skills ...

Test Strategy Manager- OUTSIDE IR35

Location
Greater London, England, United Kingdom
delivery teams and managing third-party vendors. Strong leadership, communication and decision-making skills. Desirable Technical Background Mainframe technologies (IBM z/OS, Assembler, COBOL or equivalent). Modern application architectures using Java and SQL-based platforms. Experience supporting code conversion and system migration programmes. Test automation, performance testing ...

Enterprise Modernization Lead

Location
United Kingdom
Lead end-to-end modernization engagements — from initial portfolio assessment through migration execution and post-migration optimization Conduct legacy system audits across mainframe (COBOL, PL/I, JCL), midrange (AS/400, RPG), and monolithic application estates Design migration strategies: re-platform, re-factor, re-architect, or replace — with clear ...

Natural/Adabas Developer - Contract

Hiring Organisation
Satigo Ltd
Location
United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
upcoming UK public-sector technology projects. Key Skills: Strong commercial experience with Software AG Natural and Adabas. Mainframe environments (IBM z/OS, JCL, Cobol). Legacy application development, maintenance and enhancement. Experience supporting business-critical enterprise systems. Public-sector experience advantageous. Please apply with your CV, availability, indicative ...

Mainframe Consultant/ Developer

Location
Greater London, England, United Kingdom
safeguards. Document program logic, job flows and test evidence for the team. Requirements Strong experience in Endevor Strong experience in Mainframe Working knowledge of COBOL and JCL #J-18808-Ljbffr ...

Lead Solutions / Migration Architect

Hiring Organisation
TXP Technology x People
Location
Telford, Shropshire, United Kingdom
Employment Type
Full-Time
Salary
£775.00 per day
rehosting or relocation approaches. Experience with one or more legacy technology groups such as Java, .NET, Oracle, WebLogic, IIS, Windows/Linux, AIX, Solaris, COBOL, GEN or mainframe. Experience leading architecture across high-volume wave-based migration programmes involving multiple PODs, Wave Squads, services and parallel technical teams. Experience supporting ...

Lead Solutions / Migration Architect

Location
United Kingdom
rehosting or relocation approaches. Experience with one or more legacy technology groups such as Java, .NET, Oracle, WebLogic, IIS, Windows/Linux, AIX, Solaris, COBOL, GEN or mainframe. Experience leading architecture across high-volume wave-based migration programmes involving multiple PODs, Wave Squads, services and parallel technical teams. Experience supporting ...

Lead Solutions / Migration Architect

Hiring Organisation
TXP
Location
Telford, Shropshire, West Midlands, United Kingdom
Employment Type
Contract
Contract Rate
£0.00 - £725 per day
rehosting or relocation approaches. Experience with one or more legacy technology groups such as Java, .NET, Oracle, WebLogic, IIS, Windows/Linux, AIX, Solaris, COBOL, GEN or mainframe. Experience leading architecture across high-volume wave-based migration programmes involving multiple PODs, Wave Squads, services and parallel technical teams. Experience supporting ...

Senior Software Engineer - Connex

Location
Harrogate, England, United Kingdom
Excellent understanding of online transaction processing, including knowledge of ATM transaction processing. Experience of TCP/IP and communication protocols. Strong knowledge of TAL, COBOL, SCOBOL and TACL Understanding of EMV and chip and PIN technology Knowledge of HP Non-Stop protocols, security and utilities Strong understanding of financial industry ...

CA Gen/COOL Developer - Contract

Hiring Organisation
Satigo Ltd
Location
United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
upcoming UK public-sector delivery opportunities. Key Skills: Strong hands-on CA Gen/COOL experience. Legacy application development and maintenance. Mainframe technologies including Cobol, DB2 or CICS. Application enhancement, integration and modernisation. Experience working on large enterprise systems. Please apply with your CV, availability, indicative day rate and details ...

Application Support Analyst

Location
Knutsford, England, United Kingdom
have experience in: Run The Bank roles within financial institutions, specifically in live job dump solving and an evaluative mindset to resolve incident queries. Cobol, Abend-aid, DB2 database fact finding and basic JCL skills within the banking sector. ITIL concepts and best practices and using Service Management Tool - Service ...

Mainframe Developer – CICS / z/OS

Location
Greater London, England, United Kingdom
30th, 2026Apply Now**Job Description**Infosys is seeking an experienced **Mainframe Developer** with strong expertise in **IBM Mainframe technologies**, including **CICS, z/OS, COBOL, JCL, DB2, IMS, and VSAM**, to support enterprise-critical banking and financial applications. The candidate will work on development, enhancement, maintenance, and modernization of legacy … ensuring system stability, scalability, and performance.**Key Responsibilities*** Develop, maintain, and enhance applications on **IBM z/OS** platform* Design and code programs using **COBOL, JCL, CICS, DB2, IMS, and VSAM*** Support both **online (CICS)** and batch processing environments* Perform debugging, root cause analysis, and resolution of production issues/ ...

Infrastructure Presales Architect

Location
United Kingdom
years in architecting and implementing large-scale enterprise infrastructure and data centre solutions , with hands-on expertise across mainframe environments (z/OS, COBOL, JCL, middleware), enterprise storage platforms (SAN, NAS, object storage), virtualisation technologies (VMware, Hyper-V, KVM), and data centre modernisation initiatives, including hybrid and cloud-integrated architectures. ...

Banking Application Support & Incident Resolver

Location
Knutsford, England, United Kingdom
Application Support Analyst to monitor and maintain critical tech infrastructure and resolve complex issues, including on-call rota coverage. The role involves working with COBOL, Abend-aid, DB2 and JCL in a banking environment, guided by ITIL practices and ServiceNow for incident and change management. You will operate from Barclays ...

Solutions Architect

Hiring Organisation
Teksystems
Location
Yorkshire, United Kingdom
Employment Type
Contract
wide but shallow technical knowledge, as the projects cut through various technologies from modern front-ends (like React) to legacy back-ends (like Cobol). Experience: Experience in financial services is a must, with a strong preference for candidates who have worked in Banking. Project Context The architect will ...

Solutions Architect

Location
London, United Kingdom
wide but shallow technical knowledge, as the projects cut through various technologies from modern front-ends (like React) to legacy back-ends (like Cobol). Experience: Experience in financial services is a must, with a strong preference for candidates who have worked in Banking. Project Context The architect will ...

Full Stack Engineer (8 Month FTC)

Location
West of England, England, United Kingdom
teams What you’ll bring to the table: Demonstrate proven expertise in executing seamless, phased modernization strategies to transition away from legacy platforms like COBOL, Oracle, and PHP with zero downtime, utilizing feature flags (LaunchDarkly), change data capture, and shadow data reconciliation Architect and deploy scalable microservices using Java (Spring ...

Founding GTM Leader

Location
Greater London, England, United Kingdom
About Glover Glover Labs is building the agentic platform for legacy software modernization. The world's largest enterprises run on decades-old mainframe systems — COBOL, RPG, PL/I — processing trillions of dollars daily. These codebases are too complex, too sprawling, too deeply regulated, and too poorly documented for existing ...

Hybrid Mainframe Consultant & Developer – COBOL/JCL

Location
Greater London, England, United Kingdom
Sheffield. The assignment is initially six months with 2–3 days on-site each week. You will work with datasets, VSAM files, DB2 tables, COBOL and JCL, create and run batch jobs, debug abends, write test cases, handle CICS interactions, and document program logic and test evidence for the team. ...

Mainframe Developer - COBOL/JCL/CICS for Billing & Migrations

Location
Chester, England, United Kingdom
Ascendion seeks an experienced Mainframe Developer to design and implement solutions using COBOL, JCL, and CICS in a billing and pricing environment. The role emphasizes batch flow analysis, efficient processing, and strong collaboration with stakeholders. Candidates should be adept at handling rewrite and migration projects, ensuring minimal disruption while delivering ...

Senior Hogan IDS Engineer - Mainframe COBOL Expert

Location
United Kingdom
Engineer to support Hogan IDS development on a staff augmentation basis, aligned with the client's modernization journey. The role requires Hogan IDS expertise, COBOL, JCL, VSAM, CICS, and experience with APIs and vendor platform Zafin; you will contribute to design, coding, unit testing, and production migration while ensuring critical ...

Mainframes Developer

Hiring Organisation
DCV Technologies
Location
London, United Kingdom
Employment Type
Contract
taking utmost care and necessary steps to work on critical Category A application in the IT estate. · Develop & Build Software programs using Unisys COBOL and DMS 1100 · Collaborate with cross-functional teams to understand business requirements and translate them into technical solutions. · Analyse any issues arising out of the running … required · Support System Test and Integration Test Cycles Your Profile Essential skills/knowledge/experience: · 6+ yrs Experience working in Unisys Mainframes · COBOL programming · Hierchical Database DMS 1100 · Functional Knowledge of Retail Banking · Batch Processes and Job Scheduling · Excellent problem-solving skills and attention to detail. Desirable skills/ ...

Mainframe Developer

Location
Chester, England, United Kingdom
seeking an experienced Mainframe Developer with expertise in COBOL, JCL, and CICS to join our team. The ideal candidate will have a strong background in batch flow analysis and development, as well as experience in the billing and pricing domain. Experience in handling rewrite and migration projects is also highly … desirable. Key Responsibilities: Design, analyze, and develop solutions using mainframe technologies, primarily COBOL, JCL, and CICS. Conduct batch flow analysis and implement efficient batch processing solutions. Work closely with stakeholders to gather requirements and ensure the successful implementation of billing and pricing systems. Participate in rewrite and migration projects, ensuring ...

Lead Solutions Architect (Legacy to Cloud)

Hiring Organisation
TXP
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £800/day
hosting SMEs, security teams, network teams, and platform engineering groups to ensure migration readiness. Engage with legacy SMEs (e.g., Oracle, WebLogic, IIS, AIX, Solaris, COBOL, GEN) to understand constraints and required technical remediation. Provide technical oversight during migration execution and cutover events. Support troubleshooting and issue resolution across the workstream … role rather than a greenfield cloud service design role. Experience across the following legacy technologies: Java, Oracle, WebLogic, IIS, Windows/Linux, AIX, Solaris, COBOL and GEN. Candidates are not expected to have deep expertise across every technology listed. Experience defining migration approaches and leading technical teams through discovery, design ...