- Senior System Adminstrator Linux

Prosource is seeking an experienced Senior System Adminstrator Linux to join one of its clients based in Wallonia. The client is a fast-growing tech company specializing in secure document solutions and digital process automation. You will be part of a multidisciplinary IT team and play a key role in maintaining and evolving a modern infrastructure. Responsibilities Install, configure, and maintain Linux systems and related services Monitor system performance, ensure security, and guarantee high availability Automate tasks using scripting and orchestration tools (Ansible, Docker, Kubernetes) Contribute to the design and documentation of technical architectures Collaborate with cross-functional IT teams and provide expert-level support Integrate DevOps and security best practices throughout the infrastructure lifecycle Stay up to date with technological trends and propose continuous improvements Profile 5+ years of experience in Linux system administration (Debian/Ubuntu) Strong skills in Bash, Apache, PHP-FPM, RabbitMQ, Elasticsearch, Docker, Kubernetes, MinIO Knowledge of Virtualization (VMware, Nutanix), networking, monitoring (Nagios), reverse proxy (Traefik) Team player with strong communication and problem-solving skills Bonus: Windows Server, Azure, MariaDB Galera, TerraForm, Firewalling Languages: French (fluent), English (technical proficiency) What's in it for you? Start Date: ASAP Contract Type: Freelance or Consultancy Location: Brussels A dynamic and challenging work environment with opportunities for knowledge sharing and mentorship. Career growth potential in freelance and consultancy project management, with options to transition into coaching or training roles