Senior Network Engineer

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

Build More Than Just a Career. Build Your Future.

At Vailexa, we’re not just hiring — we’re building thinkers, creators, and future leaders.

We believe in giving people the space to grow, the freedom to think, and the opportunity to create real impact from day one. If you’re someone who wants to learn fast, take ownership, and grow beyond limits, you’ll feel right at home here.

Responsibilities:

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

Qualifications:

• Technical knowledge of Arista is required; Mellanox is a major plus.
• Technical knowledge of Cumulus Networks is a major plus.
• Experience designing and architecting data center networking plans, including high-level and low-level design, implementation, and acceptance testing.
• Extensive virtual networking experience with Virtual Extensible LAN (VXLAN) and Ethernet VPN (EVPN).
• Experience with structured cabling for network connectivity.
• Expertise in network design, implementation, and best practices for high-performance computing (HPC) environments.
• Expert knowledge of Linux (Ubuntu, CentOS), advanced UNIX services, and shell scripting.
• Deep understanding of HPC and cluster technologies using InfiniBand and RDMA over Converged Ethernet (RoCE).
• Understanding of rack elevation, data center, and pod design using spine-leaf fabrics.
• Strong background in physical cabling types, specifically InfiniBand HDR and EDR.
• Strong track record implementing network services in distributed computing environments.
• Expert knowledge of storage area network (SAN) and network-attached storage (NAS) services, including iSCSI, NFS, and CIFS.
• Understanding of workload schedulers such as Slurm.
• Experience with configuration management tools such as SaltStack, Chef, or Puppet.

Tools and Technologies:
Arista, Mellanox, Cumulus Networks, VXLAN, EVPN, Linux (Ubuntu, CentOS), UNIX, shell scripting, InfiniBand, RoCE, spine-leaf fabrics, InfiniBand HDR/EDR, SAN, NAS, iSCSI, NFS, CIFS, Slurm, SaltStack, Chef, Puppet.

Vailexa Technology is an equal opportunity employer. We consider all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected status under applicable law.

Ready to take the next step?

If you’re excited about this role and ready to grow with a team that values ambition, ideas, and impact — we’d love to hear from you.