For a client in Brussels, we are looking for a Mainframe Developer.

Project start and end date: As soon as possible - 30/06/2026 
Workplace: Brussels (Hybrid)

Job description:
As a Technical Analyst/Developer, you will be responsible for carrying out technical analyses and development for existing Cobol and Procobol applications or new modules to be developed in Cobol.

Your responsibilities will include:
Analyze requests, develop structured solutions, perform tests, and ensure deployment and post-production follow-up.
Participate in the resolution of problems (production incidents) by identifying the cause, proposing solutions, and coordinating their implementation in production.
Write clear documentation.
Monitor the execution of tests in collaboration with the functional analyst, verify the quality of programs, and ensure performance optimization.
Ensure that technical files are complete and compliant, and supervise the work of programmers.

Required skills:
Oracle DBMS
Linux
Proactive communication about timeline, achieved goals, risks, etc.
Proactive and well-organized, able to handle complex tasks
Analytical thinking and problem solving
Procobol
SCRIPT
Unix
Solaris
SQL (Oracle, SQL Server, MySQL)
VISUAL COBOL

Languages:
Dutch and/or French
English