System and Security Administrator (M/F)

Building a future of trust together

Thales is a global high-tech leader specializing in three business sectors: Defense & Security, Aerospace & Space, and Cyber & Digital. It develops products and solutions that contribute to a safer, more environmentally friendly, and more inclusive world. The Group invests nearly 4 billion euros per year in Research & Development, particularly in key innovation areas such as AI, cybersecurity, quantum, cloud technologies, and 6G. Thales has nearly 81,000 employees in 68 countries.

Our commitments, your benefits

• Success driven by our technological excellence, your experience, and our shared ambition
• An attractive compensation package
• Continuous skill development: training programs, academies, and internal communities
• An inclusive, benevolent environment respecting employee balance
• Recognized societal and environmental commitment

Your daily life

By joining us in Carquefou, near Nantes, you will integrate a dynamic site bringing together our digital services activities, enabling the operation of our clients' critical information systems and supporting them in their secure digital transformation.

Your Role

Your main missions will be:

• Administration, configuration, and optimization of Windows systems
• Administration, configuration, and optimization of Linux systems
• Administration, configuration, and optimization of ESX/Vmware infrastructures
• Administration, configuration, and optimization of local storage arrays
• Backup management
• Supervision management
• Management of requests, changes, incidents, and problems
• Ensure the compliance of IS
• Ensure the operational, security, and homologation maintenance of IS
• Participate in and improve system automation (scalability)
• Contribute to the implementation of performance metrics
• Contribute to the preparation of regulatory audits
• Ensure the administration of IS during the VSR period
• Contribute to administration, operation, and knowledge base documents
• Be a source of proposals and innovation.

Your Profile

Are you a BAC+5 graduate (Engineering school or university with a specialization in networks), or BAC+2 with an equivalent of 5 years of significant experience as a system administrator and dream of developing your skills in an exciting, constantly evolving technical environment?

You have the following skills:

• Mastery of operating systems (Linux RHEL, Windows Server 2016 and above)
• Configuration, administration, and optimization of operating systems
• Mastery of virtualization technologies (VMware, Vcenter, ESX 6.x and above).
• Mastery of backup and storage solutions (SAN, NAS, RAID, NetApp…) and associated architectures
• Knowledge of automation tools (Ansible, Terraform) and shell scripting (Python, Bash, Powershell)
• In-depth knowledge of configuration, parameterization, and management of supervision systems (Nagios, Zabbix, Prometheus)
• Understanding of network protocols and equipment: TCP/IP, DNS, DHCP, LAN, VLAN, WIFI, VPN, VRRP/HSRP, VSS, RIP routing, OSPF, Radius, Load Balancing, Firewall (Arkoon/Juniper), CISCO, Juniper, Stormshield Palo Alto, Arkoon…)
• Knowledge of security equipment and solutions, both in terms of technical implementation and their administration
• Knowledge of ANSSI security fundamentals, technologies related to system security
• Technical documentation writing.

The qualities required to succeed in this role are your rigor and organization, your ability to communicate and simplify with various stakeholders, your adaptability, and your analytical and synthesis skills.

As the position may require access to information related to national defense secrecy, the selected person will undergo a security clearance procedure, in accordance with the provisions of articles R.2311-1 et seq. of the Defense Code and IGI 1300 SGDSN/PSE of August 9, 2021.

Thales, a Handi-Engaged company, recognizes all talents. Diversity is our best asset. Apply and join us!

As the position may require access to information related to national defense secrecy, the selected person will undergo a security clearance procedure, in accordance with the provisions of articles R.2311-1 et seq. of the Defense Code and IGI 1300 SGDSN/PSE of August 9, 2021.