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6 дней назад

Network Engineer (AI Infrastructure)

Тип работы

fulltime

Английский

Страна

Armenia

Вакансия из Hirify Global, списка международных tech-компаний
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Описание вакансии

Текст:

TL;DR

Network Engineer (AI Infrastructure) (InfiniBand/High-Speed Ethernet): Design and operate ultra-low-latency, high-throughput network fabrics for large-scale GPU clusters and AI training workloads with an accent on InfiniBand, RoCEv2, RDMA, and 200/400GbE switching. Focus on building leaf–spine fabrics, optimizing congestion control and storage networking, automating configuration, and maintaining reliable GPU infrastructure.

Location: Yerevan, Armenia

Company

hirify.global develops infrastructure for large-scale GPU clusters and AI training workloads.

What you will do

Design and deploy leaf–spine network topologies for GPU clusters using InfiniBand and high-speed Ethernet.
Configure and operate Mellanox/NVIDIA switches, RoCEv2 and InfiniBand fabrics, RDMA, PFC, ECN, DCBX, and congestion-control systems.
Implement segmentation and multi-tenancy with VLANs, VRFs, VPCs, SDN overlays, BlueField-3 DPUs, and SR-IOV.
Monitor fabric health, troubleshoot AI training pipelines and RDMA collectives, and maintain BGP, EVPN, OSPF, MLAG/VPC, firmware, and routing configurations.
Deploy and optimize NVMe-over-Fabrics and integrate high-performance storage platforms including WekaFS, VAST, DDN, Pure, and Ceph NVMe tiers.
Build automation, dashboards, alerting, fabric validation, auto-provisioning, and drift-detection tooling with Ansible, Terraform, GitOps, Grafana, and Prometheus.

Requirements

Deep expertise in InfiniBand HDR/NDR or 200G/400G Ethernet and strong knowledge of RDMA, RoCEv2, QP states, and congestion management.
Advanced routing and switching experience with BGP, EVPN, OSPF, MLAG/VPC, plus strong Linux networking fundamentals.
Experience with Mellanox/NVIDIA platforms, including ONIE, Cumulus, MLNX-OS, UFM, or NEO.
Experience supporting AI training clusters with H100, B200, A100, or similar GPUs.
Familiarity with BlueField DPUs, SR-IOV, VirtIO, OVN, Kube-OVN, or Calico networking.
Understanding of NVMe-oF over TCP or RDMA and experience integrating high-performance storage networks.

Nice to have

Kubernetes networking experience with CNI, Cilium, Calico, or Multus.
OpenStack Neutron or OVN experience.
Understanding of GPU virtualization and MIG networking patterns.

Culture & Benefits

Full-time role based in Yerevan, Armenia.
Collaboration with electrical, mechanical, and compute teams on rack layouts, airflow, cabling, and data-center integration.
Work on high-performance AI training and inference infrastructure.

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