F5 Security Specialist
Start date: 16 December 2025

Duration: Long term, with possibility of extension

Working hours: Full-time, with a minimum of two days per week in the office; remote working permitted depending on tasks and agreements with the team.

Role:
We are looking for an IT security specialist with the following responsibilities:

Monitoring the implementation of security policies.
Regular technical evaluation of IT systems.
Crisis response (attacks, intrusions, virus detection).
Preparation of effective response scenarios.
Advice on technical solutions to secure connections.
Detection and resolution of security breaches in various environments.
Risk analysis of IT systems for management.

Required training and experience:
Degree in IT or electronics.
Minimum 5 years' experience in a similar role.
5 years' experience in managing Palo Alto Firewalls (knowledge of Panorama desirable).
Five years' experience in VPN and web proxy solutions.
Ten years' experience with BIG IP F5.

Specific knowledge:
TCP/IP, http, https, SSL, SNMP.
Routers, stateful packet inspection and application firewalls.
BIG IP F5, APM + ASM (+AWAF)+ LTM, Identity provider, SSL VPN + GTM.
Endpoint protection products, VPN solutions, virus protection systems.
Log monitoring and correlation tools (Splunk, Nessus, ELK).
Microsoft Windows Azure, Server, Enterprise Linux Server operating systems.
Securing local wireless networks.
Encryption principles and algorithms.

Required qualities:
Excellent communication skills.
Autonomy and initiative.
Adaptability and teamwork.
Methodical and precise.
Ability to document your work.
Creativity and solution-oriented.
Customer-oriented approach.

Language skills:
Bilingual in French/Dutch preferred, or sufficient knowledge of a second national language.
Knowledge of technical English essential.