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System Administrator

Keep critical IT platforms available, secure, and continuously improving while acting as a third-line technical reference. You will deploy, administer, and evolve infrastructure services in an environment where reliability and performance directly support the business.

CONTEXT

Our client, a major player in its sector, depends on a broad IT infrastructure that must remain stable while evolving to meet new demands. The System Administrator role is part of the operational backbone: maintaining platforms, improving technical services, and responding to complex incidents with calm and precision. This is not a back-office maintenance role; it is a chance to shape how infrastructure evolves, with responsibility for availability, security, performance, and continuous improvement. You will work alongside infrastructure project teams, provide third-line support, and turn recurring operational pain points into durable technical improvements. Every deployment, patch, and configuration decision contributes to services that users rely on every day.

ACTIVITIES

  • Manage, maintain, and evolve IT infrastructure platforms and technical services.
  • Handle daily operations, deployment, administration, patching, and preventive maintenance.
  • Ensure availability, security, performance, and capacity across critical systems.
  • Provide third-line technical support and resolve complex infrastructure incidents.
  • Contribute to infrastructure evolution projects and continuous improvement initiatives.
  • Document configurations, procedures, and operational knowledge to strengthen the team.

EXPECTED ACHIEVEMENTS

  • Improve the reliability, security, and performance of core infrastructure services.
  • Reduce recurring incidents through root-cause analysis and durable fixes.
  • Deliver infrastructure changes with minimal disruption and strong operational discipline.
  • Contribute to modernization projects that keep the platform aligned with business needs.
  • Raise the team's technical maturity through documentation and knowledge sharing.

ENVIRONMENT

System administration, server and platform operations, virtualization, monitoring and alerting, backup and recovery, security hardening, third-line support, ITSM and ITIL practices, scripting and automation, and infrastructure evolution projects.