Senior Network Engineer - Ops00024 - Remote Eligible

Senior Network Engineer

We invite a highly skilled Senior Network Engineer to join our fully remote, international team. In this role, you'll design, scale, and secure the high-speed networks powering our sovereign GPU cloud. You'll work at the intersection of AI infrastructure, HPC networking, and data center engineering to deliver ultra-low latency, fault-tolerant connectivity.

What's in it for you:

• Join a fast-scaling company shaping the future of AI infrastructure in Europe

• Lead the design, automation, and optimization of high-performance networks supporting AI and GPU infrastructure

• Collaborate with a top-tier international team and grow through global AI and cloud events

Is that you?

• 7+ years in large-scale or hyperscaler networking (data center or HPC)

• Expertise in EVPN/VXLAN, BGP, and multicast architectures

• Hands-on experience with Arista EOS, Cisco Nexus, or Juniper QFX

• Certifications (CCNP, CCIE, Arista ACE)

• Familiarity with InfiniBand (HDR/NDR), NVIDIA/NVLink, and RoCEv2

• Automation experience with Python, Ansible, or Terraform

• Experience with Prometheus, Grafana, Kentik, or similar

• Experience with data center power/cooling or AI-specific topologies (fat tree, dragonfly, torus)

• Strategic thinking with strong technical and business communication

• Organization, autonomy, and adaptability

• Advanced English level

Desirable:

• Experience with NVIDIA Spectrum or Arista 7/8k; familiarity with NVLink/NVSwitch in AI clusters

• Collaboration on NVMe/TCP and NFS performance tuning with storage teams

• Exposure to BlueField DPUs and in-band telemetry

• Strong French skills

Key responsibilities and your contribution:

In this role, you'll own the performance, reliability, and security of the networks supporting our AI and GPU infrastructure.

• Design and implement EVPN-VXLAN data center fabrics connecting GPU clusters across regions

• Manage BGP peering and routing policies with ISPs, cloud exchanges, and backbone providers

• Optimize and secure network access for AI workloads on Slurm, Kubernetes, and bare metal

• Deploy, monitor, and troubleshoot high-speed network interconnects

• Automate network provisioning and telemetry

• Deliver lossless AI fabrics with RoCEv2, per-class QoS, and NCCL-validated performance

• Operate InfiniBand fabrics (partitioning, adaptive routing, and link health)

• Design multi-site networks with per-tenant VRFs, inter-DC connectivity, and traffic engineering

• Ensure safe, repeatable network changes through automation

• Implement network telemetry, monitoring, and performance alerting

• Enforce security with micro-segmentation/ACLs, AAA/RBAC, MACsec, DDoS mitigation, and RPKI