Linux System Administrator

About the role

Join Inetum’s shared services team to ensure the availability, performance, and security of Linux server environments for multiple clients. You will work on‑premise and in the cloud, providing Level 2/3 support, automation, and on‑call duties.

Key responsibilities

• Install, configure, and maintain Linux servers (Ubuntu, Debian, CentOS, RHEL) and apply regular patching, upgrades, and hardening.
• Administer shared services such as DNS, NTP, SMTP relays, web and file servers.
• Maintain and optimise virtualization and container platforms (VMware, KVM, Docker, Kubernetes).
• Configure and manage monitoring and alerting tools (Zabbix, Prometheus, Nagios, Grafana).
• Participate in a rotating 24/7 on‑call schedule, respond to alerts, and lead incident resolution.
• Apply security best practices, manage firewalls, VPN, SSH bastion hosts, and ensure compliance.
• Automate repetitive tasks using Bash, Python and configuration‑management tools (Ansible, Puppet, Chef, SaltStack).

Required profile

• Strong experience with Linux system administration in multi‑tenant environments.
• Ability to work under pressure, follow SLAs, and communicate clearly during incidents.
• Proactive attitude toward automation, standardisation, and continuous improvement.

Required skills

• Linux distributions: Ubuntu, Debian, CentOS, RHEL
• Scripting languages: Bash, Python
• Configuration management: Ansible, Puppet, Chef, SaltStack
• Virtualisation/container platforms: VMware, KVM, Docker, Kubernetes
• Monitoring tools: Zabbix, Prometheus, Nagios, Grafana
• Network services: DNS, NTP, SMTP, firewalls, VPN, SSH/bastion hosts