Cyber Security Engineer

North Atlantic Treaty Organization; Henegouwen; Sur place; EUR 90 000 - 130 000; Plein temps

Avantages offerts par ce poste

5 year contract

Private health insurance

30 days annual leave

NATO Pension Scheme

Expatriation and education allowances

Wellbeing programs

Résumé du poste

NATO's NCIA in Mons, Belgium seeks a Cyber Security Engineer to manage the lifecycle of the Web Access Layer and Microsoft technologies for the NATO Cyber Security Centre (NCSC). The role involves senior engineering, administration, and troubleshooting across SharePoint, AD FS, WAF/DMZ, SQL Server Always On, and replication services while collaborating with cloud and security teams.

You will contribute to a secure, resilient infrastructure supporting NATO networks and cyber operations in a

Qualifications

• Bachelor's degree in a related discipline with 2 years post-related experience, or equivalent demonstrated expertise.
• Experience designing, installing and managing large SharePoint environments (500+ users).
• Experience with web development tech incl. ASP.NET, JavaScript, REST API; familiarity with IDAM & SSO technologies.

Responsabilités

• Act as Senior Microsoft Technologies Subject Matter Expert for NCSC web access layer infrastructure.
• Perform advanced day-to-day administration, preventive maintenance, troubleshooting, and configuration management across SharePoint, AD FS, DMZ/web publishing and SQL Server environments.

Connaissances

SharePoint administration

IDAM & SSO

Microsoft technologies

Networking concepts

Formation

Bachelor's degree

Outils

Microsoft SCCM

SQL Server

Exchange

AD FS

Keycloak

PowerShell

Python

Git

Description du poste

NATO - North Atlantic Treaty Organisation

Job Description - Cyber Security Engineer (261435)

Cyber Security Engineer - 261435

NATO Body

NATO Communications and Information Agency (NCIA)

Schedule

Full-time

Application Deadline

27-Sep-2026, 9:59:00 PM

Salary (Pay Basis)

Grade NATO Grade G15

Who we are:

For more than 70 years, NATO’s mission has been to preserve peace and security in the Alliance for nearly one billion citizens. The NATO Communications and Information Agency (NCIA) and its predecessors have worked tirelessly in providing the means that enable the connectedness and togetherness that keep our Alliance strong. We are the NCIA, a team of 3000 civilian and military staff in 29 locations throughout Europe, North America and Asia.

Our technology and cyber experts allow NATO to conduct critical operations, protect NATO’s airspace, make data-driven decisions, defend against cyber-attacks, secure NATO networks and maintain superiority in space. This is all possible because of our greatest force, our people. In order to keep this edge we aim to hire, train and retain the very best staff.

Our staff members represent both the diversity and unity of our Alliance. When you join the NCIA, you will be part of an organization where you can contribute authentically to the mission and purpose of NATO and help us keep our technological edge.

About the job:

Based in Mons, Belgium, you will join the Agency as we embark on a journey to transform our IT services to support NATO’s Digital Endeavour. You will join NATO Cyber Security Centre (NCSC), which is responsible for planning and executing all lifecycle management activities for cyber security. In executing this responsibility, NCSC provides specialist cyber security-related services covering the spectrum of scientific, technical, acquisition, operations, maintenance, and sustainment support, throughout the lifecycle of NATO Communications and Information Systems (CIS).

We are looking for a driven and enthusiastic Cyber Security Engineer who will take on the following roles and responsibilities:

• Act as a Senior Microsoft Technologies Subject Matter Expert, with primary responsibility for the full technical lifecycle management of dedicated NCSC Web Access Layer infrastructure components. This includes:
  • Microsoft SharePoint farms, including configuration, maintenance, patching, troubleshooting, service application management, authentication integration, and performance tuning;
  • Web Application Proxy and AD FS federation nodes, including federation trust configuration, claims-based authentication, certificate lifecycle management, Single Sign-On strategy, and secure access publishing;
  • DMZ-based publishing and reverse proxy/load-balancing components, including high-availability configuration, secure routing, TLS/SSL inspection considerations, health monitoring, and service publication;
  • SQL Server Always On availability groups and associated endpoints and databases, including database availability, replication, backup and recovery support, connectivity troubleshooting, and dependency management;
  • NCSC Replicator System components and related data exchange or synchronisation mechanisms supporting web access and publication services.
• Perform advanced day-to-day administration, preventive maintenance, technical troubleshooting, configuration management, and operational support for these platforms. The role requires the ability to diagnose complex incidents across multiple technical layers, including identity and access management, web publishing, network connectivity, certificates, DNS, load balancing, database back-end services, application dependencies, and security monitoring integrations.

About you:

The valuable knowledge and experience that you bring to this role are:

• A Bachelor’s degree at a nationally recognised/certified University in a related discipline and 2 years post-related experience. Or exceptionally, the lack of a university degree may be compensated by the demonstration of a candidate’s particular abilities or experience that is/are of interest to NCIA, that is, at least 6 years extensive and progressive expertise in duties related to the function of the post.
• Strong knowledge and experience in designing, installing and managing complex and modern Microsoft SharePoint environment for at least 500 end-users;
• Strong knowledge and demonstrable experience with web development technologies including ASP.NET, JavaScript and the use of REST API;
• Strong experience in user-focused development approach and working in an agile project management framework;
• Strong experience with Identity and Access Management (IDAM) & SSO Federation technologies (AD FS / Keycloak) and protocols (SAML / OIDC);
• Good Knowledge and experience using Microsoft SCCM / SQL Server / Exchange;
• Experience in developing custom SharePoint solutions using .NET Webforms (custom features, timer jobs, webparts, custom actions);
• Have an in-depth understanding of infrastructure concepts related to Hosting, Networks, IP address Management, firewalls, certificates, Load balancing and Proxy;
• Knowledge and demonstrable experience with scripting languages and integration tools including PowerShell, Python and SQL;
• Good understanding of cyber security concepts;
• Good understanding of network communication protocols;
• Working experience with SecDevOps within cloud environments such as Azure, AWS, GCP;
• Good working knowledge of version control systems such as GIT;
• Strong team-spirit attitude;
• Fluency in English, both written and spoken.

What we offer:

• Genuinely meaningful work as part of the most successful alliance in history;
• 5 year contract with competitive tax-free salary and household and children’s allowances;
• Privileges for expatriate staff including expatriation and education allowances (where appropriate) and additional home leave;
• Excellent private health insurance scheme;
• Generous annual leave of 30 days plus official holidays;
• NATO Pension Scheme;
• Development programs such as professional training, wellbeing, and more.

To learn more about NCIA and our work, please visit our website .

The NCIA prides itself on being an equal opportunity employer. We are committed to fostering an inclusive environment of mutual respect and value uniqueness and differences in gender, gender identity, race, ethnic or cultural origin, age, religion, sexual orientation and physical or neurocognitive ability.

Additional details on the conditions of application can be found via the NCIA career site.