Senior Linux Systems Engineer — Automation, Hardening and Availability for NATO with security clearance
WLG Mons, Wallonia, Belgium
Financial Services · 2-10 employees
About the role
The engineer will be responsible for installing, hardening, and automating Linux operating systems and security tooling within a secure, change-controlled environment. They will also diagnose system problems, manage application upgrades, and maintain documentation for all custom and commercial systems.
What they look for
Requirements
Candidates must have a computer science degree or equivalent experience, with strong proficiency in Red Hat Enterprise Linux administration and automation scripting. Experience with security practices, Ansible, and virtualization is required, while Red Hat certifications are highly preferred.
Full description
A multinational defence organisation runs its security tooling on Linux, and needsan engineer to install, harden, automate and keep it available — working inside a change-controlledenvironment where an unexplained fix is not a fix.
What you would be doing
- Installing and monitoring Linux operating systems and the applications that run on them, tothe standards of a secure environment.
- Contributing to the availability, scalability and performance of the security tooling estateand the platforms underneath it.
- Building and maintaining custom systems and tools that make it possible to test, integrate,automate and monitor both custom and commercial applications.
- Preparing and defending application upgrades in front of the change management board.
- Rolling out new features and installations inside the protected perimeter.
- Writing the documentation and operating procedures for what you build, and testing them.
- Diagnosing problems in Linux systems and in how they integrate with directory services, singlesign-on, web platforms and log aggregation.
- Finding the patterns behind repeated incidents and proposing the improvements that reducethem.
- Working with service management on incident, problem and change procedures.
What you would bring
- A computer science degree with at least a year as a Linux engineer, or the equivalent inpractice.
- Linux server administration on Red Hat Enterprise Linux — installation, configuration andmaintenance.
- Programming or scripting used in earnest for automation.
- Ansible, and comfort with virtualisation such as VMware.
- Security practice applied to Linux: firewalls, encryption, access control.
- Red Hat certification — both administrator and engineer level is preferred.
- Desirable: Red Hat Satellite and packaging, observability practice, containers with Podman orDocker, collaboration tooling, and open-source contribution.
