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Senior Network Engineer (Security & Zero Trust)

Cgm

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  1. Why do you want to join Cgm?
  2. What is your experience with Azure? Tell me one thing you learned the hard way.
  3. How would you cut the cloud bill of a system without hurting it?
  4. How do you keep secrets and access safe in your infrastructure?
  5. Walk me through how code gets from a commit to production where you work.

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Responsible for operating, securing, and evolving the central network infrastructure (WiFi, branch networks, firewalls) and for implementing the Zero Trust strategy across all sites. The role increasingly supports NOC (Network Operations Center) operations and secures stable, reliable connectivity for business-critical applications and client projects. Responsibilities Operate and administer the firewall landscape (incl. WatchGuard Firebox, Zscaler), including rule reviews and policy maintenance Implement the Zero Trust architecture for branch locations, including migration of existing sites Ensure network availability/uptime; contribute to MTTR/MTTD improvement for network incidents and adherence to change success rate/SLA targets Support the datacenter consolidation (incl. the closure of FRA6/FRA8) Act as technical interface to adjacent teams (Firewall, Exchange, Azure AD, Operations Control) Progressively take on NOC-related tasks to support operations Contribute to the team goal AFAR (AI Feature Adoption Rate): document AI-supported workflows in Confluence Requirements Several years of professional experience at senior level (seniority tier A3) in network/firewall operations Solid knowledge of firewall technologies (WatchGuard, Zscaler or similar) and Zero Trust concepts Experience with WAN/VPN, VLAN design, and site connectivity (site-to-site) Analytical troubleshooting skills and willingness for cross-team coordination on complex incidents Fluent English. German is a plus Willingness to work in an international nearshore team

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