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Linux System Administrator

Job in 1000, Brussels, Bruxelles-Capitale, Belgium
Listing for: Vivid Resourcing
Full Time position
Listed on 2025-11-24
Job specializations:
  • IT/Tech
    Systems Administrator, IT Support, Cloud Computing, Cybersecurity
Job Description & How to Apply Below
Position: Vivid Resourcing - Linux System Administrator
We are seeking a skilled and dependable Linux System Administrator to join our IT infrastructure team. In this role, you will be responsible for managing, maintaining, and optimizing our Linux-based systems that support daily business operations and mission-critical services.

You will ensure system stability, performance, and security while providing hands-on support across physical, virtual, and cloud environments.

This position requires a strong technical foundation in Linux administration, a proactive approach to problem-solving, and the ability to collaborate with cross-functional teams such as Dev Ops, networking, security, and development.

You will play a key role in improving system reliability through automation, implementing best practices, and contributing to infrastructure enhancements as the organization grows. The ideal candidate is detail-oriented, committed to operational excellence, and eager to work in an environment where uptime, security, and scalability are top priorities.

Responsibilities

Install, configure, and maintain Linux servers and system components across on-premise and cloud environments

Perform system updates, patching, and security hardening to ensure compliance with standards and best practices

Monitor system health, performance, and resource usage; respond to alerts and incidents promptly

Troubleshoot complex Hardware, software, and network problems

Manage users, groups, permissions, and authentication systems (LDAP, Active Directory, SSH)

Configure and support services such as DNS, DHCP, NFS, Apache/NGINX, Samba, SSH, and CRON

Maintain backup and restoration processes, disaster recovery plans, and high-availability configurations

Automate routine tasks using Bash, Python, or other scripting languages

Support infrastructure upgrades, migrations, and capacity planning initiatives

Maintain accurate and detailed documentation for configurations, processes, and troubleshooting procedures

Collaborate with Dev Ops, networking, and development teams to support application deployments and continuous improvement

Ensure strong security posture through regular audits, patching, and system hardening

Required qualifications

2-5+ years of experience as a Linux System Administrator or similar technical role

Strong proficiency with Linux distributions such as RHEL, CentOS, Ubuntu, or Debian

Solid command-line skills and understanding of Linux architecture, file systems, and package management

Experience with Virtualization technologies (VMware, KVM, Proxmox, etc.)

Familiarity with cloud platforms (AWS, Azure, or GCP)

Knowledge of networking fundamentals (TCP/IP, DNS, routing, Firewalls)

Experience with Shell scripting (Bash) or additional languages like Python or Perl

Understanding of system security practices, auditing, and hardening

Experience with monitoring and logging tools (Nagios, Prometheus, Grafana, ELK stack, etc.)

The offer

A permanent, full-time employment contract

A salary & benefits package commensurate with experience
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