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L3 Network Engineer

Atos
Amstelveen, NL Posted Jul 14, 2026
On-site

About this role

About the Role As an L3 Network Engineer, you will play a crucial role in managing, maintaining and evolving complex network environments. You will be responsible for lifecycle management, daily operations (L2/L3 support), documentation, and monitoring to ensure optimal performance and availability. What You'll Do

  • Perform lifecycle management: support and execute maintenance on network hardware and software.
  • Provide L2/L3 support and resolve complex incidents in daily operations.
  • Create and maintain network documentation: diagrams, configurations, and work instructions.
  • Implement and monitor (automated) network processes to ensure performance and availability. What We're Looking For
  • Technical skills: broad knowledge of DCLAN networking technologies (switching, routing, security).
  • Experience with ISIS, MP-BGP, EVPN, and L3VPN.
  • Experience with Cisco Nexus and Catalyst networking products.
  • Cisco CCNP-DC (strong plus).
  • Juniper JNCIP-DC (plus).
  • Knowledge/experience with Juniper SRX firewalls (plus).
  • Experience with virtual networks and/or VMware NSX (plus).
  • Experience with network management tools and automation.
  • Personal: proactive, results-driven, eager to learn, able to collaborate in a team.
  • Dutch language proficiency (minimum B2).
  • Dutch citizenship. Nice to Have
  • Cisco CCNP-DC (extra preference)
  • Juniper JNCIP-DC (extra preference)
  • Juniper SRX firewalls (extra preference)
  • VMware NSX (extra preference)
  • Experience with network management tools and automation (extra preference)

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