Previously selected candidates were non-compliant for the following reasons:

• Candidate doesn't have experience with linux OS
• Candidates doesn't have knowledge and hands-on experience with linux hardening; minimal automation skills; communication difficulties (English language)

Deadline Date: Thursday 1 October 2026

Requirement: Engineer (CIS Security)

Location: Mons, BE

Full Time On-Site: Yes

Time On-Site: 100%

Total Scope of the request (hours): 418

Required Start Date: 30 October 2026

End Contract Date: 31 December 2026

Required Security Clearance: NATO SECRET

Duties & Role:  

• Provide support for project implementation, and delivery of infrastructure security solutions
• Ensure the stability and performance of deployed systems, services and applications post-implementation, through continuous monitoring and addressing any emerging issues in a timely manner.
• Apply approved security configurations (hardening settings), and continuously maintain the security posture of the infrastructure elements
• Contribute to remediation of CIS security findings for infrastructure elements
• Plan, deploy, and configure a variety of hardware, software, and security products;
• Perform other duties as may be required

Requirements

Skill, Knowledge & Experience:

• The candidate must have a currently active NATO SECRET security clearance
• Knowledge of the principles of computer and communication security, networking, and the vulnerabilities of modern operating systems and applications.
• Knowledge of and proven experience with linux OS, infrastructure as code and automation tools
• Knowledge of security technologies and solutions specific to hybrid-cloud, Secure Access Service Edge (SASE) and On-Premise DMZ capabilities
• Experience with Cyber Hygiene and the Critical Security Controls for effective cyber defence.
• Practical hands-on experience with systems administration.
• Ability to investigate and analyse complex scenarios and solve problems in innovative ways
• Excellent communication abilities, both written and verbal, with the ability to clearly and successfully articulate complex issues to a variety of audiences and teams