Senior Cyber Security Specialist 4

Mons, Belgium Deadline: 29-09-2026 Geplaatst: 16-09-2026 #17562

Main duties

The specialist will support NATO’s Cyber Enablement Service by:

  • Gathering, analysing and documenting technical and operational requirements for cyber and CIS monitoring capabilities.
  • Translating operational needs into engineering, system, functional and non-functional requirements.
  • Producing engineering documentation such as:
    • Requirements and system specifications
    • Use cases, user stories and operational scenarios
    • State, workflow and system-context diagrams
    • Interface, capability and service descriptions
    • Conceptual and logical architectures
    • Testable acceptance criteria
  • Supporting CIS capability design across hardware, software, networking and security architecture.
  • Advising on monitoring technologies, including sensors, packet capture, SIEM, logging, telemetry, analytics and detection engineering.
  • Defining hardware needs for servers, storage, appliances, taps, packet brokers, network devices and virtual infrastructure.
  • Preparing roadmaps, options papers, decision briefs and engineering recommendations.
  • Planning and facilitating workshops, requirements sessions, design reviews and stakeholder meetings.
  • Supporting procurement documentation, including Invitations for Bid, statements of work, technical specifications, compliance criteria and clarification responses.
  • Translating NATO requirements into clear, industry-understandable documentation.
  • Supporting purple-team activities, adversary emulation and validation of monitoring and detection effectiveness.
  • Identifying visibility gaps, detection opportunities and monitoring improvements.
  • Coordinating work among project managers, engineers, security architects, operational teams and suppliers.
  • Supporting operational handover, knowledge transfer, training and documentation.

Essential experience and knowledge

Candidates should have:

  • At least five years of practical experience in cybersecurity, systems/CIS engineering, capability development or a related field.
  • Strong experience across the full capability lifecycle: requirements, design, integration, testing, validation, acceptance and operational transition.
  • Proven ability to create technical requirements, specifications, diagrams, use cases and operational scenarios.
  • Experience gathering and prioritising requirements with customers and stakeholders.
  • Experience preparing procurement and technical evaluation documentation.
  • Strong cybersecurity and cyber-defence monitoring knowledge.
  • Strong understanding of monitoring platforms, sensors, packet capture, logging, telemetry and analytics infrastructure.
  • Relevant hardware expertise involving servers, storage, network equipment, security appliances, taps and aggregation devices.
  • Working knowledge of routing, switching, segmentation, firewalls, virtualisation and enterprise infrastructure.
  • Experience solving complex technical problems and developing corrective or preventive measures.
  • Experience coordinating multidisciplinary technical teams and supplier activities.
  • Excellent English communication, analytical and technical-writing skills.
  • Ability to work independently and collaboratively.

Highly desirable experience

  • SIEM, security analytics and cyber-monitoring tools.
  • Purple teaming, adversary emulation, detection validation or cyber-exercise support.
  • Delivering systems for government, defence, military or other operational organisations.
  • NATO or national military implementation projects.
  • Deployment or operation of technology in military environments.
  • Previous work supporting a governmental or military organisation.

Education

Either:

  • A bachelor’s degree in a related discipline plus at least three years of relevant post-degree experience; or
  • At least ten years of extensive and progressive relevant experience where no university degree is held.

Working conditions and travel

  • Normal office environment with NCIA equipment provided for restricted information.
  • Remote work may be permitted for up to 20% of total working time, subject to prior approval.
  • Home working within the duty location may be allowed under NCIA teleworking policy.
  • Personal equipment may be required for public or unclassified remote work and Microsoft-based video meetings.
  • Travel may be required within Belgium and to other NATO or mission locations.
  • Approved NATO-duty travel is reimbursed under NATO regulations.
  • Work travel must begin from the designated duty station.

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