Job description

Job :

Reporting to the IT Infrastructure Department, your missions will be:

To ensure the availability, security, and performance of IT infrastructures (systems, networks, backups, security) in compliance with current standards, particularly ISO/IEC 27001. The Administrator guarantees the smooth technical operation of IT environments while ensuring the application of security, maintenance, and continuous improvement policies.

- Main activities:

• Administer servers (Windows/Linux), storage, databases, Active Directory, virtualization, and network components,
• Ensure the operational maintenance (MCO) of the IT infrastructure, guaranteeing the availability, security, and performance of the systems,
• Implement and maintain network architectures (LAN, VLAN, VPN, firewall, Wi-Fi),
• Apply information security policies according to ISO 27001: access management, logging, backups, hardening, supervision,
• Develop and monitor backup and business recovery plans (PRA/PCA),
• Diagnose and resolve level 2/3 technical incidents,
• Plan and execute preventive and corrective maintenance of systems and networks,
• Write and maintain technical documentation,
• Participate in technological watch (infrastructure, cybersecurity, cloud),
• Apply the requirements of the Integrated Management System and report HSE incidents if necessary.

• Graduated with a Bac+5 (Master's degree equivalent) in information systems, networks, and telecommunications, or cybersecurity, from an engineering school or a specialized Master's program, with a minimum of 2 to 3 years of experience in a similar role.
• Excellent command of Windows Server systems and Active Directory (AD).
• Solid skills in network infrastructure management: LAN, WAN, VLAN, VPN, DNS, DHCP.
• Good command of Microsoft Azure, Microsoft 365, and cloud administration tools (certifications desired).
• Experience in administering security solutions: firewalls, antivirus, MFA, with good knowledge of Kaspersky Security Center (certification appreciated).
• Proficiency in virtualization tools (Hyper-V) and hyperconverged environments.
• Use of monitoring tools such as Nagios, PRTG, or equivalents.
• Knowledge of ITIL principles and security standards: ISO/IEC 27001, GDPR.
• Excellent analytical and problem-solving skills for complex technical issues.
• Rigor, autonomy, and good technical documentation skills.