Onsite System Administrator

Posted 3 weeks ago

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About the role

  • Système d’Information Administrator managing administrative and operational tasks for critical services and cloud environments at Ozitem in France.

Responsibilities

  • Advanced administration and operations
  • Administer the entire Information System, ensuring availability, performance, and stability
  • Monitor systems and networks (alerts, load, critical incidents)
  • Install, configure, maintain, and upgrade servers and operating systems
  • Ensure continuous updates of the IT environment (patch management, version upgrades, fixes)
  • Expertly administer the Microsoft 365 tenant: Exchange, SharePoint, Teams, OneDrive, Intune, Defender, policies/profiles
  • Work on the Azure environment (VMs, resource groups, VNet, Entra ID…)
  • Ensure coherence, security, and performance of hybrid environments
  • Lead IT security measures: managing alerts (CERT, Defender, EDR), email quarantine (O365/Vade), security patches
  • Identify risks, propose and implement corrective actions
  • Apply and enforce security standards and best practices
  • Handle level 2 incidents and complex issues requiring deep expertise
  • Analyze root causes and implement long-term solutions
  • Actively participate in major technical projects
  • Proactively propose improvements to architecture and tools
  • Design, develop, and maintain PowerShell scripts to automate and optimize operations
  • Maintain comprehensive, clear, and up-to-date documentation (architectures, procedures, configurations)
  • Work within a strict ITIL framework and contribute to improving existing processes

Requirements

  • 3–4 years' experience as a system administrator in large-scale environments (1,000+ users)
  • Comfortable working in structured, process-driven, and demanding environments
  • Comfortable strictly following procedures while being able to take relevant initiative
  • Able to work independently and take responsibility
  • Comfortable with documentation and formalizing practices

Benefits

  • CSE (works council benefits)
  • 75% public transport reimbursement
  • RTT (additional time-off days)
  • Meal vouchers
  • Profit-sharing

Job title

System Administrator

Job type

Experience level

Mid levelSenior

Salary

Not specified

Degree requirement

No Education Requirement

Tech skills

Location requirements

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