Senior System Engineer (Linux – Network – Storage) – Freelance - LAV000625

Senior System Engineer (Linux – Network – Storage) – Freelance

Brussels, Belgium
Start: June 2026 | Duration: Until December 2026
Full-time | Hybrid

About the Role

We are looking for a Senior System Engineer to join the IT Operations team of a major public sector organization. In this role, you will be responsible for the setup, management, and optimization of critical IT infrastructure, with a strong focus on Linux environments, complemented by networking and storage technologies.

You will work within a specialized team managing enterprise-scale systems, ensuring stability, performance, and continuous improvement of the infrastructure landscape.

Your Responsibilities

• Manage and maintain Linux-based systems in an enterprise environment
• Develop and maintain automation scripts (Bash, Python, Perl)
• Implement and manage configuration management using Ansible
• Work with Kubernetes and containerized environments
• Handle day-to-day operations: monitoring, backups, incident resolution
• Design and implement system changes, upgrades, and new environments
• Support and maintain network and storage infrastructure
• Contribute to infrastructure optimization and automation
• Collaborate with internal teams and support ITIL-based processes
• Participate in datacenter operations when required

Your Profile

Must-Have

• Minimum 5 years' experience in:
  • Linux system administration (preferably SUSE Linux Enterprise Server)
  • Linux scripting (Bash, Python, Perl)
  • System administration (setup, maintenance, operations)
• Experience with Ansible configuration management
• Hands-on experience with Kubernetes and containers (enterprise level)
• Broad knowledge of IT infrastructure (systems, networking, or security)
• Dutch proficiency at CEFR level C2

Nice to Have

• Experience with monitoring tools (Elastic, Nagios)
• Knowledge of virtualization (VMware ESX or similar)
• Experience with network technologies (Cisco ACI, Palo Alto, F5, Barracuda)
• Experience with enterprise storage (NetApp, HPE Alletra, StoreOnce)
• Familiarity with data platforms (Tibco Data Virtualization, KNIME)
• Experience with ITIL processes and support operations
• Experience in datacenter operations

What's in It for You

• Work on complex, enterprise-level infrastructure environments
• Join a highly skilled and collaborative IT Operations team
• Contribute to the stability and modernization of critical systems
• Opportunity to broaden your expertise across Linux, network, and storage domains
• Flexible hybrid working model

Additional Information

• Freelance assignment under framework agreement
• Full-time engagement
• Hybrid work setup (with occasional travel to data centers)
• Possibility of extension