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Oussama AnnadOA

Oussama Annad

Windows Systems Engineer

€550/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Oussama

I support companies in the design, optimization, and security of their IT infrastructures (On-prem & Cloud).

Specializing in Active Directory, Microsoft 365 / Entra ID, VMware virtualization, PowerShell automation, and migration projects, I work on complex environments with a pragmatic, reliable, and results-oriented approach.
  • French

    Native or bilingual

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

Experience

  • ARTEMYS (Groupe PRINTEMPS)
    System Engineer
    June 2024 - Today (2 years and 2 months)
    • • Maintaining the operational condition of the Printemps office IT system
    • • Participating in projects impacting the scope based on client requests
    • • Ensuring, with the rest of the team, service openings and closings, on-call duties in the evenings and weekends, and night switchover tests
    • • During service openings, performing the CREQ (which consists of establishing an inventory of each piece of equipment and service) and then sending it by email
    • • Administration of AD, GPO, DNS, DHCP, DFS, printers, and O365 services: configuration and incident resolution
    • • Administration of virtualization elements: Vcenter, storage arrays, “storage” switch, and ESX
    • • Monitoring follow-up, interventions in response to alerts
    • • Backup monitoring and interventions to correct detected faults
    • • EasyVista backlog follow-up: handling requests and incidents to prioritize, taking SLAs into account
    • • Ensuring the update of ESX, Windows, and Linux servers (e.g., monthly KB, ESX BIOS, or Linux security alert) as well as applications within the scope (e.g., S1)
    • • Procedure monitoring (e.g., MEX)
    • • Writing and updating technical documents (Server status / Infrastructure documents) and procedures (BAO…)
    Regular interactions:
    • • With the coordinator: information exchange, incident prioritization, service scheduling
    • • With N2 colleagues: occasional mutual assistance, procedure review.
  • METSYS
    Windows Systems Engineer
    July 2022 - April 2023 (9 months)
    In the context of workstation migration
    Standardization (process industrialization and regression testing)
    Migration of 3000 workstations
    Troubleshooting workstation migration incidents
    Coordination with client IT teams in Europe
    Office 365 migration using Quest ODM
    Workstation migration with Microsoft ADMT
    OneDrive migration
    Daily reporting of migrated items
    Updating documents for migration progress tracking.
    Environment: Microsoft ADMT, Quest ODM, Windows 10, OneDrive, Office 365
  • La CIAR
    Senior System Engineer
    May 2019 - June 2022 (3 years and 1 month)
    Environment: Active Directory, Azure Active Directory, MS Office 365, Windows Server 2016/2019, Windows 10, VMware (vSphere ESXI, vSphere vCenter), Veeam backup, Office365, Veritas backup exec, Forcepoint, Cisco, Symantec

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Education

  • Systems and Networks Engineer
    2015
    Ingénieur Systèmes et Réseaux
  • Systems and Networks Administrator
    2013
    Administrateur Système et Réseaux

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