Network Engineer (LAN & WAN)

Network Engineer (LAN & WAN)

North Atlantic Treaty Organization (NATO)

October 17, 2026November 19, 2026Belgium
Job Description
Job Posting Organization:
The NATO Communications and Information Agency (NCIA) is a vital part of NATO's mission, which has been focused on preserving peace and security" style="border-bottom: 1px dotted #007bff !important;">security for over 70 years. Established to provide the technological backbone that supports NATO's operations, the NCIA employs around 3000 civilian and military staff across 29 locations in Europe, North America, and Asia. The agency's mission is to ensure that NATO remains connected and capable of responding to various challenges, including cyber threats and operational demands. The NCIA is committed to hiring, training, and retaining top talent to maintain its technological edge and support the Alliance's objectives.

Job Overview:
As a Network Engineer (LAN & WAN) at the NATO Infrastructure Services Centre (NISC), you will play a crucial role in transforming NATO's IT services to support its Digital Endeavour. Your responsibilities will include the full lifecycle management of network infrastructure, which encompasses design, transition, and operations. The position is based in Braine L’Alleud, with a temporary location pending the completion of a new facility at Camp Casteau in Mons. The role requires a proactive approach to designing and implementing secure and resilient network infrastructures that connect on-premises and multicloud environments. You will also be responsible for optimizing network performance and ensuring reliable connectivity across NATO's operations.

Duties and Responsibilities:
  • Design and implement secure and resilient network infrastructure connecting on-premises and multicloud environments.
  • Configure and optimize routers, switches, firewalls, and routing protocols, including OSPF, BGP, and IS-IS.
  • Troubleshoot network faults, latency, and congestion to maintain reliable connectivity.
  • Apply security controls, assess risks, and support investigations into suspected attacks and security breaches.
  • Monitor network performance, traffic, and capacity to support redundancy, scalability, and growth.
  • Install, upgrade, patch, and remove network hardware and software, testing changes before deployment.
  • Collaborate with security, data center, and cloud teams, maintaining clear designs, network diagrams, and operational documentation.
  • Participate in assigned Enterprise Security Operations Center shifts and scheduled on-call rotations for after-hours support.

Required Qualifications:
A minimum requirement of a Bachelor’s degree at a nationally recognized/certified University in a related discipline and 2 years of post-related experience. Alternatively, candidates without a university degree may compensate with at least 6 years of extensive and progressive expertise in duties related to the function of the post. At least 2 years of practical experience with designing, implementing, and maintaining core network architecture for large organizations. Good practical experience configuring, troubleshooting, and optimizing routers, switches, firewalls, and other networking elements. Strong communication and interpersonal skills, along with analytical and problem-solving abilities are essential.

Educational Background:
Candidates must possess a Bachelor’s degree from a nationally recognized or certified university in a relevant field. This educational background is crucial for understanding the complexities of network engineering and the technical requirements of the role.

Experience:
The position requires at least 2 years of practical experience in designing, implementing, and maintaining network architectures for large organizations. Candidates with extensive experience in related duties may also be considered, particularly if they can demonstrate a strong understanding of network operations and security.

Languages:
Fluency in English, both written and spoken, is mandatory for this position. This proficiency is essential for effective communication within the international environment of NATO. Additional languages may be considered an asset but are not required.

Additional Notes:
The position offers a 5-year contract with a competitive tax-free salary, household and children’s allowances, and privileges for expatriate staff, including expatriation and education allowances where appropriate. Employees will also benefit from excellent private health insurance, generous annual leave of 30 days plus official holidays, and participation in the NATO Pension Scheme. Development programs, including professional training and wellbeing initiatives, are also available. The NCIA is committed to being an equal opportunity employer, fostering an inclusive environment that values diversity in all its forms.
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