Freelancer profile translated to English.
Back to original languageAbout Gherairi
IT Mainframe Expert & Project Manager – The alliance between technological robustness and strategic vision
Seasoned professional in the Mainframe Z/os systems universe, I leverage over [15 years of experience to lead complex projects, optimize critical infrastructures, and ensure operational continuity in demanding environments.
🔧Solid technical skills: mastery of z/OS environments, JCL, COBOL, DB2, CICS, as well as tools like TWS, RACF, and IDCAMS.
Able to intervene across the entire application lifecycle, from design to production.
📈 Project Leadership: management of strategic IT projects, coordination of multidisciplinary teams, adherence to deadlines and budgets, with a results-oriented and quality-driven approach.
🧠 Business Vision: deep understanding of business challenges, ability to translate functional needs into sustainable technical solutions, while ensuring system compliance and security.
🤝 Fluid Communication: privileged point of contact between technical teams, business units, and external partners. I promote transparent and effective collaboration.
French
Native or bilingual
Can work on-site
Paris (up to 50km)
Experience
- Crédit Agricole Payment ServicesSolution Analyst Mainframe – Project ManagerApril 2021 - March 2025 (3 years and 11 months)• Supervision and maintenance of Mainframe infrastructure and performance monitoring• Management of critical incidents and implementation of corrective solutions• Supervision of technical teams and coordination with application teams• Planning of Mainframe component evolutions and updates• Management of interbank flows and transaction security (PAA/Minos, IAT)• Risk analysis and regulatory compliance of IT processes• Optimization of automated tasks to improve operational efficiency Mainframe system administration:• Management of system resources (CPU, memory, storage)• Capacity planning and performance optimization• Installation, configuration, and maintenance of system software• Management of MLC licenses, verified monthly by SCRT reports• OTC licenses• System Management Facilities (SMF)
- AxwaySenior Services Consultant PSOJanuary 2020 - April 2021 (1 year and 3 months)La Défense, France• Writing and updating operating manuals and IT procedures• Securing banking flows and managing TLS/SSH certificates
- La Banque Postale DSIBRTechnical Coordinator MTC-IOZMay 2019 - January 2020 (8 months)Toulouse, France• Management of level 2 and 3 incidents and root cause analysis• Maintenance and supervision of SPOOL-JES2, EOS, VTAM, TCPIP infrastructures• Monitoring of performance indicators and weekly reporting• DB2 database administration and batch processing management under TWS• Supervision and training of technical teams on z/OS• Monitoring event logs via SPLUNK for anomaly analysis
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Education
- Security andSécurisation et
- z/OS Certification – System Automation, JCL, TWS, CICS-IMS BaccalaureateCertification z/OS – Système Automation, JCL, TWS, CICS-IMS Baccalauréat