Senior Network Engineer; L2​/L3 Physical & Logical Support

About the Role

As a Senior Network Engineer
, you will play a critical role in the end-to-end physical deployment and logical validation of network infrastructure in mission-critical environments. You will lead complex installations, troubleshoot across OSI Layers 1–3, and ensure seamless integration between physical connectivity and logical configurations.

• Lead advanced device racking and mounting for high-density chassis (Cisco Nexus 9k, Catalyst 9500) and enterprise appliances.
• Oversee structured cabling and fiber optics, ensuring compliance with ANSI/TIA-606-B standards.
• Manage patch panels, cross-connects, and media conversions for diverse physical media types.
• Configure Out-of-Band (OOB) remote management solutions and troubleshoot console access issues.
• Validate Layer 2 and Layer 3 configurations, including VLANs, STP, Ether Channel/LACP, and routing protocols (BGP/OSPF).

On-site role based in Basel Stadt or Stein (Aargau), Switzerland
.

• For the Senior role you need: 8+ years of experience in Data Center or large enterprise campus environments.
• Deep expertise in Ethernet and fiber cabling, hardware installation (Cisco, Arista, Palo Alto, F5).
• Advanced knowledge of routing and switching fundamentals (Cisco IOS, NX-OS, Arista EOS).
• Proficiency with diagnostic tools (Visual Fault Locators, Light Meters, Fiber Inspection Scopes).
• Certifications:
  
  CCNP Enterprise (ENCORE) highly preferred; CCNA mandatory.
• Strong troubleshooting skills for mission-critical incidents.
• Fluency in English and min. A2 level German.

• Experience with DWDM and handling 10/20/40 Gig fiber links.
• Familiarity with media converters and advanced troubleshooting of physical loops and broadcast storms.
• Leadership experience in coordinating field teams and vendor interactions.

We believe in creating an environment where you can thrive professionally and personally. Here’s what you can expect:

• Health Insurance Allowance for peace of mind
• Annual Performance Bonus to reward your impact
• Permanent Employment Contract for long-term stability
• Relocation Support for candidates moving from abroad
• A collaborative, international work culture with opportunities for continuous learning and growth