Mainframe Analyst & Developer (Cobol/PL1) – Core Systems

Oliver James Group

Brussel Hoofdstad

On-site

EUR 65,000 - 90,000

Full time

2 days ago

Be an early applicant

Get a reply from this recruiter

Your resume and cover letter, tailored to exactly what they’re hiring for.

Get past ATS filters

Benefits offered by this job

Meal vouchers

Year-end bonus

Group and hospital insurance

Job summary

Oliver James Group is seeking a Mainframe Analyst Developer (Medior/Senior) in Belgium to own the design and delivery of robust mainframe solutions. You will lead technical analyses, craft reliable software, and drive modernization while ensuring stability and performance.

Ideal candidates have 5+ years in software development, strong mainframe skills (C, COBOL, PL/1), and experience with SQL/DB2, z/OS, CICS, JCL, and related tools. Fluency in French or Dutch and English proficiency are valued.

Qualifications

Bachelor's or Master's degree in IT, Computer Science, or equivalent experience.
5+ years of software development experience, ideally with Mainframe systems.
Proficient in C, COBOL, or PL/1 and relational databases (SQL/DB2).

Responsibilities

Lead the technical analysis, design, development, and maintenance of core business applications.
Work on multiple layers - from business logic to system integration and user interfaces.
Translate functional needs into robust, long-term technical solutions.
Ensure the stability, performance, and quality of existing systems while contributing to modernization initiatives.
Collaborate closely with internal teams and act as a technical reference for less experienced developers.
Document and communicate your work clearly to both technical and business stakeholders.