Senior Network Engineer

About the role

Contabo Group is seeking a Senior Network Engineer to manage and scale their cloud infrastructure platform. You will take ownership of the network backbone, lead the build-out of a new AI data center, and maintain existing infrastructure through design, operation, and security hardening. This role involves working within a self-organizing, agile team to bridge the gap between NetOps and Platform Engineering.

Responsibilities

• Design, build, and operate complex network, server, and security systems
• Commission and maintain Leaf-Spine architecture using Arista EOS, BGP EVPN, and VXLAN
• Harden network security through the use of scrubbers, firewalls, ACLs, and NAC
• Monitor network traffic and infrastructure performance while reporting key metrics to management
• Coordinate with external service providers and remote hands globally
• Maintain network documentation including diagrams, runbooks, and change logs
• Collaborate with Platform Engineering on Kubernetes node network configuration, Cilium BGP peering, and IPAM

Required skills

• Network architecture
• Leaf-Spine
• BGP EVPN
• VXLAN
• WAN connectivity
• DDoS mitigation
• Network security
• Ansible
• Terraform
• Python
• Kubernetes networking
• German
• English

Nice to have

• Nokia Deepfield
• Aurologic
• Grafana
• Check_MK
• Zabbix
• Proxmox
• NetBox

Qualifications

• Completed IT apprenticeship or equivalent
• Equivalent practical experience

Certifications

• Arista certification
• Cisco certification

Benefits

• Flexible hours
• Workation across the EU
• Summer office in Mallorca
• EGYM Wellpass
• Corporate benefits program
• 30 days of vacation
• Volunteer Day
• Professional development opportunities

About the Company

Contabo Group operates one of Europe's largest cloud infrastructure platforms with data centers across Europe and beyond. The company fosters a culture of trust, direct communication, and open feedback, providing employees with creative freedom and opportunities for real impact.