Mainframe Analyst & Developer

BelgiumBelgium·Brusselsmid
OtherDeveloper
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Quick Summary

Overview

Mission Overview: Join Keystone Solutions as a consultant for a Mainframe Analyst & Developer consultancy mission at a client site. As a Keystone Solutions consultant, you will work closely with the client to reinforce their teams and deliver high-impact solutions while operating within a dynamic…

Key Responsibilities

Translate business requirements specifications into programming instructions. Conduct impact analysis for development and implementation of application systems. Translate business requirements specifications into programming instructions.

Technical Tools
javasql

Join Keystone Solutions as a consultant for a Mainframe Analyst & Developer consultancy mission at a client site. As a Keystone Solutions consultant, you will work closely with the client to reinforce their teams and deliver high-impact solutions while operating within a dynamic consultancy framework.

Responsibilities

~1 min read
  • Translate business requirements specifications into programming instructions.
  • Conduct impact analysis for development and implementation of application systems. Translate business requirements specifications into programming instructions.
  • Analyze, develop, review, and modify programming systems, including encoding, testing, debugging and installing for large-scale systems.
  • Provide support for existing applications and recommendations for enhancements.
  • Identify problems, determine the root cause, and deliver solutions.
  • Apply sound judgment in prioritizing/time allocation.
  • Participate in technical projects (COBOL, JAVA, SQL,)
  • Be part of a Keystone Solutions team working in close collaboration.
  • You are an Engineer (must have)
  • You have interest in IT projects.
  • You are proficient in French and can communicate in English.
  • Knowledge of JAVA and SQL is mandatory
  • Knowledge or at least interest in using/learning COBOL is mandatory
  • Knowledge of other programming languages is an asset
  • You have between 0 to 5 years' experience in a similar function

As a Keystone Solutions consultant, you will engage on-site at client locations and in hybrid settings, collaborating closely with client stakeholders while benefiting from Keystone's supportive consulting environment. You will execute all responsibilities above under our consultancy model, aligned with the client's priorities and ways of working.

Work on diverse challenges across client projects, applying your skills in COBOL, JAVA, and SQL to deliver value in complex, large-scale systems while expanding your experience through varied engagements.

Accelerate your growth with exposure to real-world banking IT contexts and continuous learning opportunities connected to project needs and the consultancy environment.

Advance your career by taking on increasing responsibilities across client missions, leveraging Keystone Solutions' consulting approach to broaden your impact and trajectory.

As a K-Stone, you bring excellence, collaboration, and client-centricity to every engagement, ensuring consistent quality and trusted partnerships across all client projects.

  • Hybrid
  • Brussels, Brussels, Belgium
  • Workplace at the client's office and @home according to the client's policy

What We Offer

~1 min read
Work on a challenging project inside a young and dynamic team
A competitive salary combined with extra-legal benefits, including a mobility budget with the option to choose between a company car and/or reimbursement for sustainable transport, and even, under certain conditions, reimbursement of your mortgage or rent.
Access to our training platform
Enjoy access to the Benefits@Work platform and its exclusive offers.
A desk in a nice office and of course your own workplace @home according to the client's policy

If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal.


Location & Eligibility

Where is the job
Brussels, Belgium
On-site at the office
Who can apply
BE

Listing Details

First seen
May 5, 2026
Last seen
May 8, 2026

Posting Health

Days active
0
Repost count
0
Trust Level
42%
Scored at
May 6, 2026

Signal breakdown

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keystone-solutionsMainframe Analyst & Developer