Remote Senior Data Center Network Architect

Nebius Group; Amsterdam; On-site; EUR 112,000 - 161,000; Full time

Benefits offered by this job

Comprehensive health insurance

401(k) plan with company contribution

Paid time off and public holidays

Flexible working hours

Professional development and certific c

Job summary

Nebius Group, based in Amsterdam, is building a full-stack AI cloud platform and seeks a Senior Network Engineer to design, build, and operate large-scale data center networks. You will own service-provider grade, CLOS-based fabrics, ensuring reliability, scalability and predictable performance across distributed environments.

Responsibilities include end-to-end deployment of routing and switching, documentation, testing, vendor evaluation, and cross-team collaboration to optimize ECMP and

Qualifications

• CCIE/JNCIE or equivalent in MPLS, routing and switching.
• Experience with data center fabrics and SP-grade networks.
• Experience designing and documenting large-scale network architectures.
• Experience developing and executing network testing strategies and vendor solution validation.
• Strong troubleshooting across TCP/IPv4/v6 in CLOS-based environments.

Responsibilities

• Design and evolve scalable data center network architectures (CLOS/leaf-spine).
• Own end-to-end deployment and lifecycle management of routing and switching infrastructure.
• Develop and maintain network design documentation and procedures.
• Plan, execute, and validate network testing and vendor evaluation.
• Diagnose and resolve complex network issues across IPv4/IPv6.
• Optimize traffic engineering, ECMP, and load balancing.
• Implement and operate SR-MPLS/SRv6 and L3 MPLS VPNs.
• Collaborate with hardware, systems, and software teams.
• Automate network operations and workflows to improve reliability.
• Ensure high availability and performance of production networks.

Skills

MPLS routing

VXLAN & cloud overlay

BGP & IS-IS

SR-MPLS / SRv6

Network architecture design

TCP/IPv4/v6 troubleshooting

English proficiency

Tools

Juniper

Arista

Huawei

Mellanox

Job description

Nebius Group, based in Amsterdam, is building a full-stack AI cloud platform and seeks a Senior Network Engineer to design, build, and operate large-scale data center networks. You will own service-provider grade, CLOS-based fabrics, ensuring reliability, scalability and predictable performance across distributed environments.

Responsibilities include end-to-end deployment of routing and switching, documentation, testing, vendor evaluation, and cross-team collaboration to optimize ECMP and