F5 Network Administrator

Project overview

Assignment Description

For team MSI within the Security section, we are looking for an experienced F5 network administrator.

Background of the assignment

The Generic IT and Infrastructure department (GIT&Infra) is responsible for providing advice, services, systems, and applications for generic information technology, particularly for the Infrastructure and generic IT business capability. The department is responsible for the realization and maintenance of the defense-wide IT infrastructure. The primary objective of the GIT&Infra department is to ensure Business IT Alignment in the generic IT domain and to execute the lifecycle of all IT infrastructure for generic IV/ICT products.

This applies to both standard and custom IV/ICT products and to customers in accordance with the agreed criteria of time, money, and quality. The GIT&Infra department thus provides a coherent generic IT and ensures a generic information management that aligns with the business operations of Defense, enabling the user to make optimal use of the various IT facilities.

The work is carried out within the Security section. The Security Section guarantees the confidentiality, integrity, and availability of the data of Defense and its chain partners so that they can always and everywhere work with their data securely. In doing so, the Security Section makes a significant contribution to the response speed and effectiveness of Defense and its chain partners. The primary area of focus is Security. Cyberattacks are commonplace, making high-quality IT security crucial.

We ensure that our colleagues in the office and in the field can perform their work securely at all times and everywhere.

Requirements eCF profile: Network Specialist

Reference Area: E.08 Information Security Management

This assignment is based on the European e-Competence Framework (e-CF). This is a European standard for describing IT competencies and the associated level of responsibility. The eCF profile indicates which competencies and at what level (e-1 to e-5) are expected from the candidate. We expect candidates to clearly demonstrate in their CV that they possess these competencies. This can be done by describing for each relevant assignment or position:

CVs in which the required eCF competencies are not demonstrably present cannot be fully assessed for suitability.

Candidate has at least 4 years of demonstrable work experience with the chosen eCF profile similar role.

Generic description competence area and levels

Implements information security policies. Monitors and takes action against intruders, fraud, and security breaches or leaks. Ensures that security risks are analyzed and managed with respect to business data and information. Evaluates security incidents, makes recommendations for security policy and strategy to ensure continuous improvement of security.

Summary task and mission

Ensures the alignment of the network, including telecommunications and/or computer infrastructure, to meet the organization's communication needs. Manages and operates a network information system, resolves problems and errors to ensure defined service levels. Monitors and improves network performance and security.

• the role the candidate fulfilled
• the tasks and responsibilities involved
• the extent to which these align with the required eCF competencies and level

Responsibilities

Requirements/Wishes

• Ensure that communication performance, recovery, and security needs meet the agreed service contract standards
• Contribute to defining network design policies, philosophies, and criteria
• Investigate, diagnose, and resolve network problems
• Use network management tools to determine network load and model performance statistics
• Remain aware of relevant legislation affecting network security
• Configure network to protect against security threats
• Monitor network to identify and address traffic bottlenecks

Requirements

The competencies we are looking for in this role are:

Candidate preferably has demonstrable work experience within the Ministry of Defense.

Candidate preferably has demonstrable work experience with Check Point

Candidate preferably has demonstrable work experience with Linux

Candidate preferably has demonstrable work experience with Fortinet

Additional information

Hybrid working: The frequency is an estimate, provided the work allows. Arrangements regarding working from home are always made in consultation with the requester. Frequency of days working from home: 2

On-call services: No

• You have a HBO work and thinking level.
• You are familiar with Change Management processes (impact analysis, test plans, rollback scenarios).
• You are capable of troubleshooting within a complex IT landscape.
• Minimum 5 years of work experience with management, implementations, and migrations in the field of network infrastructure (VPN, firewalls, load balancers, and proxies) within a strictly secured environment.
• You possess the following certifications: F5-CTS BIG-IP or equivalent level and CCNP.
• Proactive & initiative; You take the lead, identify opportunities and risks, and come up with improvement proposals instead of waiting.
• Perseverance; You persist with complex issues and do not give up easily when a solution is not immediately obvious. You delve into it until you understand the core.
• Analytical ability; You find your way within an existing organization and complex technical environments. You can distinguish between main and secondary issues and get to the core of a problem.
• Problem-solving ability; You think in alternatives, carefully weigh different solution directions, and clearly outline the pros and cons.
• Collaboration; You actively seek collaboration, share knowledge and information, and show genuine interest in the joint result.
• Communication skills; You ask clarifying questions where necessary, share insights with colleagues, and ensure clear alignment with involved stakeholders.

Project details

• Start: 2026-12-31T23:00:00
• Location: Maasland Zuid-Holland, NL
• Languages: Dutch