> Markdown version of [/jobs/ext/3878628-capability-lead-network-security](https://www.wearedevelopers.com/jobs/ext/3878628-capability-lead-network-security). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Capability Lead Network Security - **Company:** VodafoneZiggo - **Location:** Utrecht, Netherlands - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Cloud Computing, Cyber Security, DDoS Mitigation, Domain Name System (DNS), Network Security, Network Monitoring, Security Information and Event Management, Computer Network Operations, Juniper, Information Technology, Palo Alto Networks, Ddos, Cisco - **Published:** October 23, 2026 - **Apply:** https://www.adzuna.nl/details/5822441777 ## About the Role Utrecht, Utrecht, 3511 WR Voltijd SLUIT BINNENKORT Description Je brengt diepe expertise in network security architecture, segmentatie en zero trust mee binnen complexe telecom-, IT-, OT-, datacenter- en cloudomgevingen. Je hebt ervaring met security assessments, target architecture, firewall governance, CIS hardening, NDR/SIEM-monitoring, DDoS- en DNS-security. Je kunt risico's vertalen naar concrete ontwerpen, standaarden, roadmaps en implementaties en werkt effectief samen met architecten, network operations, platformteams, application owners en senior stakeholders. Jij hebt * 7-12 jaar ervaring in network security, network architecture of infrastructure security. * Een bachelor- of masterdiploma in Computer Science, Network Engineering, Information Security of vergelijkbaar. * Ervaring met het ontwerpen en implementeren van netwerksegmentatie en zero trust architecturen. * Kennis van telecom- of kritieke infrastructuur, inclusief IT-, OT-, cellular network/RAN- of mobile core-domeinen. * Hands-on ervaring met firewall management, policy governance en firewall inventory of typology modelling. * Kennis van CIS benchmarks, hardening standards en configuration compliance tooling. * Ervaring met NDR, SIEM, network monitoring, DDoS mitigation en DNS/proxy log monitoring. * Een relevante certificering zoals Cisco, Juniper, Check Point, CCIE, Palo Alto of vergelijkbaar; vloeiend Engels is vereist.