Senior Mainframe

Senior Engineer – Mainframe / Java Location: Brussels, BelgiumEmployment Type: ContractDuration: 6 MonthsStart Date: 31 October 2026Experience: 10+ years Role Overview We are looking for an experienced Senior Engineer with strong IBM Mainframe expertise to undertake complex system design, development, and functional design activities. The role involves...

ING seeks a seasoned COBOL/Mainframe Engineer to join the Customer Data & Onboarding domain in Brussels. You will design, develop, and maintain mainframe COBOL applications for onboarding, lifecycle management, data processing, and regulatory compliance, collaborating with analysts, architects, DevOps, and platform teams.With 7+ years in COBOL/Mainframe...

ING Belgium NV/SA is seeking a seasoned COBOL/Mainframe Engineer to design, develop, and maintain critical applications across the Customer Data & Onboarding domain. You will work with business analysts, DevOps, and platform teams to ensure reliable, secure processes that handle onboarding, lifecycle events, and regulatory compliance.You will contribute to...

A leading software development company is seeking a Senior BackEnd Software Engineer with over 5 years of experience, specializing in mainframe applications and SAS programming. This role involves developing and maintaining software applications, troubleshooting issues, and mentoring junior developers. Strong expertise in Agile methodologies and effective...

About the job Senior Mainframe Developer - COBOL / DB2 - 10909467Senior Mainframe Developer - COBOL / DB2Location: Brussels, BelgiumEmployment Type: ContractDuration: 6 MonthsStart Date: ASAPExperience: 8-10 yearsJob OverviewWe are looking for an experienced Senior Mainframe Developer with strong expertise in COBOL, PL/I, JCL, DB2, SQL, and CICS. The ideal...

ITproposal is seeking an experienced Senior Mainframe Developer specializing in COBOL and DB2 to join our contract project in Brussels. You will contribute across the full development lifecycle, crafting robust mainframe solutions in a capital markets setting.The role requires deep expertise in COBOL, PL/I, JCL, DB2, SQL and CICS, with strong analytical and...

ResponsibilitiesManage the daily operations of the group life back-end application running on the mainframe.Deliver projects within agreed timelines.Monitor and follow up on daily incidents (low volume).Contribute to technical and functional documentation through code analysis and application behavior review.Implement simple, structured, and efficient...

Aantoonbare ervaring als Systeembeheerder (opzet, beheer en onderhoud van de systemen). Aantoonbare kennis en ervaring, op systeemingenieur niveau, van minstens één van de specialistische systemen: Windows systemen, Mainframe systemen, applicatie middleware (web-en applicatieservers, …), veiligheidssystemen, netwerk en communicatiesystemen, generieke of...

The role As a Senior Infrastructure & Cloud Architect, you will own the technical leadership of complex cloud and hybrid transformation programmes for enterprise clients. Recognised as an architectural authority, you will define standards, patterns, and technology roadmaps, advising IT leadership and CxOs on their strategic choices. You will drive...