Developer Mainframe Vacatures In België - 9 Job Positions Available

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 critical ADABAS/Natural

Rejoindre KEYES, c’est donner du sens à votre talent Vous êtes à la recherche d’un environnement où la technologie n’est pas une fin en soi, mais un levier pour construire un futur durable ? Chez KEYES,

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

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: This is a consultancy mission at a client site, where you will represent Keystone Solutions as an Expert Functional Analyst within the Channels & Customer Experience-Enterprises (CCE-E) Tribe. As a Keystone Solutions consultant, you