Requirement: Network Security Tool Manager
Location: Mons, BELGIUM
Full Time On-Site: Yes
Time On-Site: 100%
Not to Exceed Rate: 63 EUR
Total Scope of the request (hours): 400
Required Start Date: 5 October 2026
End Contract Date: 31 December 2026
Required Security Clearance: NATO SECRET
Please do NOT apply for any NATO contract positions unless you meet ALL the following criteria:
- Current National or NATO SECRET clearance
- Nationality of one of the NATO member countries
- Current work visa for the specific location if applying for an in-country position
Duties & Role:
Working under the direction of the Team Lead and the CSOC Section Head, the incumbent will be responsible for the administration, maintenance, and continuous improvement of enterprise cyber defense tools that support network security monitoring, threat detection, and threat hunting. As part of the CSOC section, the role acts as a subject matter expert for network visibility, security monitoring, and packet capture capabilities, ensuring platforms remain reliable, effective, and aligned with organizational security objectives. Roles & duties are as follows:
Security Tool Operations & Lifecycle Management
- Deliver and maintain the network visibility and security monitoring capabilities required to support CSOC operations.
- Act as a subject matter expert for the operation, configuration, and lifecycle management of security monitoring and packet capture technologies.
- Manage the lifecycle of security monitoring platforms, including deployment, configuration, maintenance, upgrades, obsolescence management, and decommissioning.
- Configure, maintain, and optimize monitoring, traffic aggregation, and packet capture technologies to support reliable data collection and analysis.
- Monitor platform health, availability, data quality, retention, storage utilization, and operational performance.
- Identify and address visibility gaps that may impact threat detection or security operations.
- Maintain accurate documentation, architecture diagrams, inventories, operational procedures, and support information.
- Troubleshoot Linux, network, connectivity, performance, and data collection issues across the security monitoring environment.
- Support the design and implementation of security monitoring solutions that align with CSOC requirements.
- Support integration with wider security operations, analytics, and incident management capabilities.
- Work with security analysts, detection engineering, and other stakeholders to improve monitoring coverage and support evolving detection requirements.
- Conduct capacity planning and scalability assessments to support future growth.
- Identify operational risks, improvement opportunities, and enhancements to increase reliability, visibility, and efficiency.
- Support compliance, audit, and assurance activities related to cyber defense technologies.
- Provide subject matter expertise and technical guidance on security monitoring, network visibility, packet capture, and data collection requirements.
- Support projects and initiatives by ensuring monitoring and visibility requirements are considered during design, implementation, and service transition.
- Support cabling, deployment planning, and site survey activities related to security monitoring and network visibility infrastructure.
- Coordinate maintenance activities, vendor support engagements, and communications relating to platform status, risks, and improvement opportunities.
- If requested, participate in cyber defence related exercises supported by NCIA.
- Support the Defend Branch service delivery in the context of NCIA Enterprise Service Delivery Model and NCIA Customer Funded regime.
- Deputize for higher grade staff, if required.
- Performs other duties as may be required.
Skills, Knowledge & Experience:
- The candidate must have a currently active NATO SECRET security clearance
- A minimum requirement of 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 NCI Agency, that is, at least 6 years extensive and progressive expertise in duties related to the function of the post.
- Expert knowledge of network security monitoring, cyber defense operations, and enterprise security monitoring environments.
- Extensive hands-on experience supporting large-scale, distributed security monitoring deployments across multiple networks, sites, segments, or data centres.
- Hands-on enterprise experience with security monitoring and packet capture platforms such as Cisco Firepower, Corelight, and NetWitness.
- Proven experience in platform health monitoring, performance monitoring, capacity management, troubleshooting, and operational governance.
- Strong hands-on experience with network visibility, traffic aggregation, packet brokers, packet capture, and related monitoring technologies.
- Advanced understanding of enterprise networking concepts, protocols, architectures, and data flows.
- Linux and network troubleshooting experience, including connectivity, packet flow, interface, performance, and system-level diagnostics.
- Practical experience supporting cabling, site surveys, and physical deployment activities for monitoring or network visibility infrastructure.
- Strong knowledge of security telemetry collection, event correlation, threat detection, and threat hunting concepts. Very good communication and analytical skills.
- Language proficiency in English: meet or exceed the NATO STANAG 6001 Level 3 "Professional Proficiency".
- Relevant certifications in cyber security, such as Certified Information Security Manager (CISM), Certified Information Systems Security Professional (CISSP) or GIAC Security.
