Mainframe System Jobs In Belgium - 21 Job Positions Available

Chaque année, KEYES est à la recherche de nouveaux talents pour concrétiser ses projets. Un stage est lopportunité idéale pour savoir si lon est fait lun pour lautre. A PROPOS DE NOUS KEYES accompagne les grandes

Division: Global Technology Services (GTS) As Lead Expert Engineer – Mainframe Middleware & Framework Engineering, you will define and drive the technical roadmap for Euroclears middleware platforms, frameworks, and tooling ecosystem. You will provide technical leadership across

Mainframe Developer – ADABAS/Natural & BS2000 Location: Brussels, Belgium – Hybrid Start Date: 15 September 2026 Duration: 73 days Workload: Full-time, 40 hours/week We are looking for an experienced Mainframe Developer to support the controlled migration of a

Senior Mainframe Developer – COBOL / DB2 Location: Brussels, Belgium Employment Type: Contract Duration: 6 Months Start Date: ASAP Experience: 8–10 years Job Overview We are looking for an experienced Senior Mainframe Developer with strong expertise in COBOL,

Mainframe Solution Architect – Capital Markets Location: Brussels, Belgium Employment Type: Contract Duration: 6 Months Start Date: ASAP Experience: 8–10 years Job Overview We are looking for an experienced Mainframe Solution Architect with strong expertise in mainframe technologies and

Mainframe Designer (Brussels, Belgium) Requirement ID: 10870306Location: Brussels, BelgiumStart Date: ASAPDuration: 6 MonthsStatus: Open Role: Mainframe Designer (8–10 Years Experience) We are seeking an experienced Mainframe Designer with strong expertise across PL/I, JCL, DB2, SQL, and CICS. The ideal

Joining KEYES means giving purpose to your talent. Are you looking for an environment where technology is not an end in itself, but a lever to build a sustainable future? At KEYES, we are not just

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

Mission Overview: Keystone Solutions is seeking a Web and API Developer (PHP, Python, JS) for a consultancy mission at a client site. You will join a dynamic team that embraces innovative and agile processes (Scrum, DevOps,

Mission Overview: You will be employed as a consultant at a client site representing Keystone Solutions. The client is responsible for managing police information and ICT resources. Within this environment, the Systems Division develops ICT system architecture, organizes

Mission Overview: You will be employed on a consultancy mission at a client site representing Keystone Solutions. The client is responsible for managing police information and ICT resources. Within this environment, the Systems Division develops the ICT

Functional / Data Analyst – Legacy & Data Migration About the Role We are looking for an experienced Functional / Data Analyst to support the modernization of legacy and mainframe-based systems. The role focuses on analyzing existing applications,

Functional Analyst – Legacy & Data Migration About the Role We are looking for a Functional Analyst to support the modernization of legacy and mainframe-based systems. The role focuses on analyzing existing applications, data structures and business processes

Full-Stack Developer – PHP / Python / JavaScript About the Role We are looking for an experienced Full-Stack Developer to contribute to a major data modernization program, helping migrate critical data from legacy mainframe systems to a modern,