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About Abderrahim

Are you looking for an expert to maintain and evolve your critical systems in a mainframe environment.

Senior IT Consultant, I have been working for over 20 years on high-criticality legacy systems (banking, insurance, large accounts). I help my clients ensure the continuity of their operations, make their applications reliable, and support the modernization of their existing systems.

Specializing in COBOL, Pacbase, LINC, and DB2, I am quickly operational on your mainframe environments (MVS, GCOS) and I work in maintenance (RUN), evolution (BUILD), or analysis/design.

What sets me apart:

A rare expertise in still critical legacy technologies
A capacity to intervene quickly in complex environments
A reliability, performance, and security-oriented approach
Solid business experience (banking, insurance, industry)
A capacity to transfer knowledge and support your teams

I regularly work on:

Maintenance and evolution of COBOL / Pacbase applications
Analysis and resolution of production incidents
System performance optimization
Legacy system modernization projects
Migration and documentation of existing systems
Support for technical and functional teams

Available for freelance or employer-sponsored missions, I quickly integrate into your teams and contribute effectively to the success of your projects.

Do not hesitate to contact me to discuss your needs.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km)

Experience

  • Itconsulting
    Senior SI Consultant Engineer
    DIGITAL AND IT
    January 2014 - Today (12 years and 5 months)
    Casablanca, Morocco
    Analysis of business needs (HR, finance, logistics) and study of application impacts, Design of technical solutions and writing of detailed specifications, Participation in workshops with internal teams and coordination with business units, Development and maintenance of critical applications in Pacbase/COBOL, CICS environment on large systems, Data manipulation and structuring (reference data logic) and inter-system exchanges, Development of data transfer programs (COBOL) between systems, Implementation of corrective and evolutionary changes, Contribution to the structuring of batch processes and data reliability, Unit and integration testing, analysis and correction of anomalies, Participation in production deployments and application support (N2/N3. Analysis and development in Mainframe environment (MVS, CICS / TSO), Programming in PACBASE with DMS database Work on data quality (cleaning and validation of purchasing databases), Contribution to the industrialization of batch processes Participation in testing, anomaly correction, and continuous improvement, Assistance to project ownership for the Ministry of National Education (Modeling of processes for various Management modules (Medical Management, Partner Management, Continuing Education Management, Learner Reference Management, Establishment Reference Management, Application Maintenance Management, Evolutionary)), Modeling and Implementation of a School Management System (HR, Finance, Logistics, Business Intelligence) for software development
    COBOL PACBASE DMS
  • (Réseau Ferré de France)
    Consultant
    TRANSPORTATION
    February 2010 - September 2013 (3 years and 7 months)
    Paris, France
    Public policies for allocating rail capacity (time slots) and prioritizing movements in disrupted situations, in an efficient and non-discriminatory framework, Mathematical modeling and Development with the GLPK optimization tool on a Linux platform.
  • LVMT (Laboratoire Ville, Mobilité, Transport) avec la collaboration de l'INSEE
    Research and Development Engineer
    TRANSPORTATION
    September 2009 - January 2010 (4 months)
    Paris, France
    Participation in the Grand Paris project: “Sharing of data on the city, environment, and transport, for research and expertise: expectations and positions of stakeholders”, Modeling and Unification.

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Education

  • Doctorate in Engineering Science
    Pierre and Marie Curie University-Paris
    2010
    Docteur en Science de l'Ingénieur
  • Specialized Master's Degree
    School of Bridges and Roads
    2009
    Diplômé (Bac+6)

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