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Mainframe Developer (COBOL)

Brussels City Permanent View Job Description
Our client, a leading Belgian organization operating in a key essential sector, is looking for a Mainframe Developer (COBOL) to strengthen its IT team. You will contribute to the development and evolution of strategic applications used both internally and by a wide network of partners.

Added 03/07/2026

  • Position of a Mainframe Developer
  • Have visible impact on the organization

About Our Client

Our client, a leading Belgian organization operating in a key essential sector, is looking for a Mainframe Developer (COBOL) to strengthen its IT team. You will contribute to the development and evolution of strategic applications used both internally and by a wide network of partners.

You will join a stable, dynamic, and quality-driven environment where your technical expertise will directly contribute to the performance of the company's operations. This position is located in Brussels.

Job Description

As an Mainframe Developer (COBOL), you will be involved throughout the entire application lifecycle, including:

  • Analyzing both functional and technical requirements
  • Designing, developing, and maintaining existing applications
  • Contributing to the evolution of platforms and the integration of new solutions
  • Ensuring the quality, performance, and long-term maintainability of developments
  • Producing the required technical documentation
  • Identifying opportunities for improvement and proposing innovative solutions
  • Collaborating closely with both business and technical teams
  • Working across back-end development, application interfaces, and system integrations



You are able to work autonomously on a project, from the initial analysis phase through to deployment into production.

The Successful Applicant

  • Bachelor's or Master's degree in Computer Science, or equivalent professional experience
  • Experience with, or solid knowledge of, procedural programming, including:
    • C
    • COBOL
    • PL/I
  • Knowledge of relational databases, including:
    • SQL
    • DB2
  • Strong analytical and problem-solving skills
  • Excellent organizational skills with strong attention to detail
  • Good command of French and/or Dutch, both written and spoken
  • Good reading comprehension of technical English



Experience with or knowledge of the following technologies would be considered an asset:

  • z/OS environment
  • CICS
  • JCL
  • PL/I
  • SOA / ESB
  • TWS
  • Web Services development
  • Java
  • Knowledge of accounting or financial principles

What's on Offer

  • Permanent employment contract (CDI)
  • Competitive salary package in line with the market
  • Meal vouchers
  • End-of-year bonus
  • Group insurance
  • Hospitalization insurance
  • 35-hour work week, promoting an excellent work-life balance
  • Stable working environment with high-value projects
  • Offices ideally located in the heart of Brussels, easily accessible by public transport
Contact
Stevan Brodin
Quote job ref
JN-072026-7054688

Job summary

Sector
Information Technology
Sub Sector
IT Development
Industry
Insurance
Location
Brussels City
Contract Type
Permanent
Consultant name
Stevan Brodin
Job Reference
JN-072026-7054688

PageGroup is an equal opportunity employer committed to workforce diversity, both as an employer as well as a recruitment service provider. Each recruitment decision we make for people we hire and people we place into new roles is based solely on the candidates’ knowledge, experience and skills.