15 of 15 COBOL Jobs in the UK

Senior Full Stack Developer (Java/React)

Location
Belfast City District, Northern Ireland, United Kingdom
clean code Desirable: Financial services experience Experience with CICD/agile delivery mechanisms Knowledge of resilient enterprise systems Knowledge of mainframe development technologies (eg COBOL, CICS, VSAM Experience with pub/sub infrastructure (eg Kafka) and sql/no-sql databases Qualifications Bachelors/Masters degree in technology disciplines What ...

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 ...

Test Planning Lead - Mainframe Product Migration

Hiring Organisation
NTT DATA
Location
London, UK
Employment Type
Full-time
execution dashboards and go/no-go criteriaTest closure report and evidence catalogueRequired experienceProven test planning leadership on mainframe migrations (e.g. z/OS, COBOL, CICS, DB2, IMS, MQ, Batch/JCL) and complex interface landscapes. Strong understanding of batch cycles, end-of-day processing, data migration/reconciliation ...

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 ...

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 ...

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/ ...

Manager, Site Reliability Engineering

Location
Harrogate, England, United Kingdom
related technologies in a live production environment is highly desirable, including: HP NonStop systems Pathway, GoldenGate, and electronic file transfer tools TACL, TAL, COBOL, SQL (Enscribe), Enform TACL scripting ATM Driving Card authentication, authorization, and EMV standards Protocols and standards such as ISO8583 and LIS5 HSMs, cryptology and TLS Additional ...

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 ...

Associate Principal - System Management

Hiring Organisation
LTM
Location
London, UK
Employment Type
Full-time
COBOL Lead Sr Programmer10 years of experience in COBOL programming and VAXVMS developmentStrong COBOL programming skillsExtensive experience with VAXVMS operating systemFamiliarity with VAX COBOL compiler and related utilitiesExperience with VAXVMS file systems and database managementTroubleshoot and resolve issues with COBOL applications and VAXVMS systemsProvide technical support to endusersDevelop maintain … enhance COBOL programs and applications running on VAXVMSWrite test and debug COBOL code according to specificationsDevelop and document code according to company standardsProficient in the VAXVMS operating system and its associated toolsFamiliar with VAX COBOL compiler and related utilitiesExperience with VAXVMS file systems and database managementExperience with ICMS tool ...

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 ...