Network Security Engineer F5

h3Function /h3pWe\'re looking for a highly experienced IT Security Specialist to join our client\'s team and strengthen the security of critical digital services and high-availability IT environments. In this consulting role, you will be responsible for managing and evolving web application security solutions, improving the organisation\'s security posture and ensuring effective incident response capabilities. You will play a key role in reducing security risks, protecting sensitive systems and responding decisively to critical security events. /ph3Responsibilities /h3pWorking closely with technical teams and management, you will take ownership of the operational security infrastructure and contribute to the continuous improvement of security measures. Your responsibilities will include: /pulliManage, maintain and continuously improve web application security infrastructure. /liliInstall, configure and operate F5 technologies and Advanced Web Application Firewall (AWAF) components. /liliDevelop, implement, document and monitor security policies and controls. /liliMonitor the security posture of IT systems and assess their resilience against malicious activity. /liliInvestigate and respond to security incidents, including coordinated attacks, network intrusions and malware detection. /liliConduct technical risk assessments across various IT environments. /liliIdentify vulnerabilities, evaluate potential threats and implement appropriate remediation measures. /liliAdvise on secure technical solutions for partner connectivity across internal and external networks. /liliProduce clear technical documentation, security assessments and incident or crisis reports. /li /ulh3Your Profile /h3pYou are a senior IT security professional with at least 10 years of relevant experience and a strong hands-on background in network and application security. You are autonomous, proactive and comfortable taking responsibility in complex operational environments, including situations requiring rapid decision-making and crisis management. /ppThe ideal candidate brings: /pulliExtensive hands-on experience with F5 AWAF technologies, including APM, ASM, LTM, Identity Provider and SSL VPN. /liliStrong expertise in network and application firewalls, particularly Palo Alto, Forcepoint and Panorama. /liliSolid experience with VPN, proxy and remote access solutions, including site-to-site VPN and web proxy technologies. /liliProven capabilities in security monitoring, technical risk analysis, vulnerability management and remediation. /liliKnowledge of security monitoring and log-correlation platforms such as Splunk, Nessus and Elastic SIEM. /liliA strong understanding of TCP/IP, HTTP/HTTPS, SSL and SNMP. /liliAwareness of wireless security principles and encryption technologies. /liliExperience with terminal-server environments such as Citrix. /liliExcellent written and verbal communication skills, with the ability to produce structured technical documentation and reports. /liliA precise, analytical and client-oriented approach, combined with the ability to collaborate effectively with technical and management stakeholders. /li /ulpA degree in IT, electronics or an equivalent field is preferred, although proven professional experience is also considered. This position requires a senior-level profile capable of working independently under general direction, corresponding to SFIA level 4. /ph3Practical Information /h3ulliLocation: Brussels, with teleworking possibilities. /liliLanguages: Fluent Dutch and English are required, alongside a good command of French. Bilingual Dutch/French proficiency is preferred, with at least a sufficient working knowledge of the second national language. /li /ulh3Contactperson Reference /h3ulliReference #: INW28845 /liliPieter Messely /li /ul