Senior Linux Engineer
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Job Title : Senior Linux Engineer
Location : Brussels - next to public transport
Contract : Freelance / long-term mission (+2 years)
About the Role
We are looking for a System Engineer to join a Sysadmins team responsible for ensuring that tailor-made infrastructure solutions for clients in the railway and mobility sector operate smoothly. You’ll work across a variety of technologies — on-premise, hybrid, and cloud — all requiring high levels of availability, continuity, and security.
Key Responsibilities
- Maintain, install, and configure both hardware and software components.
- Participate in migration projects, testing, debugging, and deploying updates or patches.
- Ensure infrastructure and data security, while maintaining system stability.
- Monitor and resolve incidents, failures, and changes to keep environments operational.
- Provide second-line support, including participation in an on-call rotation.
- Research and implement new technologies and tools to improve operational efficiency.
- Contribute to testing, documentation, and implementation processes.
- Perform on-site interventions at customer locations (31 sites across Belgium).
What We’re Looking For
Professional & Personal Skills:
- Structured, precise, and detail-oriented working style.
- Strong documentation mindset (writing and maintaining documentation is second nature).
- Excellent team player with strong communication skills.
- Knows when to work independently and when to seek support.
- Able to perform under pressure.
- Customer-focused, discrete, and professional in interactions with clients.
- Willing to support go-live and hypercare phases (occasionally during nights or weekends).
- Flexible regarding working hours and travel within Belgium.
Required Technical Skills
- Strong knowledge of Linux (Red Hat) systems and scripting (bash or similar).
- Solid experience with VMware, including vSphere, vCenter, and vMotion.
- Basic understanding of network administration (routers, switches, VPN, firewalls).
- Fluency in Dutch and French (spoken and written).
- Experience in high-availability production environments.
Nice-to-Have Skills
- Experience with Veeam (setup, configuration, administration).
- Puppet (Open Source) administration.
- Monitoring tools: Nagios, Zabbix.
- Openshift and Elastic Stack (including Kibana).
- Database knowledge: MySQL, PostgreSQL.
- Atlassian Suite (Jira, Confluence, Git).
- GIT version control.
- Familiarity with Stratus and Fujitsu hardware.
If you’re passionate about IT operations, value teamwork, and want to contribute to reliable and secure infrastructure environments, we’d love to hear from you.
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