Senior Cyber Security Engineer (Endpoint) – Mandator...

Founded in 2020, Coop-R, a subsidiary of the Infogène Group, is a consulting agency specialized in IT services, with a particular focus on the field of Big Data.

After founding and growing several successful companies — some of which have surpassed the 100-employee mark — Antoine decided to join forces to create the future leading company in DATA technologies.

Our vision: to co-build a structure of experts where intrapreneurship, knowledge-sharing, and a human-centered approach are the fundamental pillars.

We are looking for a Cyber Security Engineer (Endpoint) to support critical missions within NATO. You will be part of a multidisciplinary international team, contributing to the development and maintenance of secure, high-availability applications in support of NATO operations.

Role & Responsibilities

Primary Responsibilities:

• Provide NATO-wide support for endpoint protection solutions, including anti-malware, removable media control, Data Loss Prevention (DLP), disk wiping, and hard drive encryption technologies.
• Manage the full software lifecycle for a variety of enterprise-grade endpoint protection tools—covering release management, testing, distribution, and maintenance.
• Define, test, and document configuration settings and deployment guidelines for use across NATO sites and nations.
• Contribute to the creation and maintenance of configuration, installation, and user documentation.
• Monitor the cybersecurity threat landscape—particularly malware trends—and track developments in emerging endpoint protection technologies.
• Perform configuration audits to ensure compliance with COMPUSEC measures, directives, and procedures across NATO CIS endpoints.
• Provide expert advice and technical support to NATO CIS administrators and IT security officers regarding endpoint protection.
• Support the NATO Cyber Security Centre (NCSC) by providing security analyst expertise for incident handling and response.
• Maintain and update endpoint security configurations and associated documentation for NATO CIS systems.
• Review technical documentation intended for publication or delivery to NCIA customers as part of project outputs.
• Offer cybersecurity consulting and guidance to projects, plans, and technical teams.
• Collaborate with system and network administrators to ensure alignment with security architecture requirements.
• Contribute to the daily achievement of team goals and objectives.

Requirements Description

Mandatory Qualifications and Experience:

• Extensive practical experience (minimum 4 years) with Trellix (formerly McAfee) antimalware products, particularly ePolicy Orchestrator (ePO) and Endpoint Security (ENS).
• Proven experience (minimum 4 years) in maintaining, operating, and troubleshooting Trellix security solutions.
• Demonstrated capability in managing the full lifecycle of Trellix products, including:

• Tracking and testing new software releases
• Updating and optimizing configurations to meet industry best practices and NATO security requirements
• Maintaining up-to-date documentation
• Coordinating and supporting the implementation of required changes
• Leading change management processes

Technical Skills and Knowledge:

• Proficient in writing and editing ENS Expert Rules.
• Hands-on experience in systems and tools administration within Windows environments.
• Skilled in diagnosing and resolving issues in complex Windows infrastructures.
• Capable of providing enterprise-wide support for Trellix products.
• Ability to develop and maintain technical documentation and configuration standards for Trellix tools.
• Experience liaising with vendors and providing Level 3 technical support.
• Solid understanding of computer and communications security principles, networking, and vulnerabilities in modern operating systems and applications.
• Excellent written and verbal communication skills, with the ability to clearly present complex technical issues to diverse audiences.
• Proven ability to work independently, follow internal processes, and operate effectively within the NCSC chain of command.

Desirable Qualifications and Experience:

• Familiarity and hands-on experience with one or more of the following Trellix products:

• Trellix Drive Encryption
• Trellix File and Removable Media Protection (FRP)
• Trellix Data Loss Prevention (DLP)
• Trellix Application and Change Control

• Understanding of operational and technical constraints specific to NATO network environments.
• Experience troubleshooting Linux-based infrastructures.
• Prior involvement in implementation projects within NATO or national military organizations.

Working Conditions: Standard office environment.

Travel Requirements: No travel is currently anticipated for this position.

Security Clearance: A valid NATO SECRET security clearance is required.