Cyber Security Engineer

Who we are:

Primary Location

Belgium-Mons

Schedule

Full-time

Application Deadline

28-Sep-2026, 12:59:00 AM

Salary (Pay Basis)

6,713.06

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.

For a full list of duties, please review the job description on the NCI Agency career site.

About you:

• 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 cust