Senior Network Engineer - HPC Data Center (200G+)

Vailexa; Santa Clara (CA); On-site; USD 140,000 - 190,000; Full time

Job summary

Vailexa is seeking a networking specialist to design, build and support large-scale data center networks for a customer requiring 200G+ performance. The role emphasizes real-world deployment across HPC environments with InfiniBand and RoCE expertise.

You will work with Arista, Mellanox, and Cumulus Networks technologies, applying VXLAN/EVPN fabric designs, and contribute to high-performance, scalable networking solutions while collaborating with a distributed team.

Qualifications

• Deep knowledge of Arista and Mellanox networking.
• Experience with data center design, including high-level and low-level design.
• Extensive VXLAN/EVPN virtualization and fabric architectures.
• Strong Linux Unix scripting and shell skills.
• Familiarity with InfiniBand RoCE and HDR/EDR in HPC environments.
• Experience with storage networking (SAN/NAS) and common protocols.
• Experience with cluster workloads such as Slurm.

Responsibilities

• Design, build and support large-scale data center networks for a customer (200G+).

Skills

Arista networking

VXLAN/EVPN

InfiniBand/RDMA

Linux scripting

SALT/CHEF/Puppet

Data center design

Rack design

Networking hardening

Slurm

Tools

Arista

Mellanox

Cumulus Networks

VXLAN

EVPN

Linux (Ubuntu/CentOS)

InfiniBand HDR/EDR

RoCE

SAN/NAS

iSCSI/NFS/CIFS

Slurm

SaltStack/Chef/Puppet

Job description

Vailexa is seeking a networking specialist to design, build and support large-scale data center networks for a customer requiring 200G+ performance. The role emphasizes real-world deployment across HPC environments with InfiniBand and RoCE expertise.

You will work with Arista, Mellanox, and Cumulus Networks technologies, applying VXLAN/EVPN fabric designs, and contribute to high-performance, scalable networking solutions while collaborating with a distributed team.