Hybrid Sr. Network Engineer: Data Center & SD-WAN Expert

Xlysi LLC.; Spring (TX); Hybrid; USD 124,000 - 179,000; Full time

Job summary

Xlysi LLC is seeking a Sr. Network Engineer in Spring, TX for a contract role with hybrid work options. The candidate should bring 10+ years of hands-on experience across routing/switching, data center fabric, spine-leaf architectures, and SD-WAN, with strong Cisco, Juniper, Brocade, and Arista expertise.

The role emphasizes design, implementation, migrations, and high availability. Applicants should demonstrate excellent client relationships, documentation skills with MS Office and Visio, and

Qualifications

• Strong hands-on experience in network routing and switching design, implementation, configuration, troubleshooting and operations.
• Expert knowledge of data center networking, including spine-leaf architectures and high-availability fabrics.
• Hands-on SD-WAN design, implementation, configuration and troubleshooting.
• Expert knowledge of Cisco, Juniper, Brocade and Arista switches/routers.
• Strong experience in network design, migrations, upgrades and optimization for enterprise/data center environments.
• Expert knowledge of carrier technologies (BGP, VRF-Lite, IS-IS, MPLS, BFD, CCC, GRE, RSVP).
• Expert knowledge of routing protocols (iBGP, OSPF, VRRP, VARP, HSRP, PBR).
• Excellent client relationship and stakeholder management skills.
• Excellent documentation using MS Office and Visio.
• Excellent verbal and written communication skills.
• Ability to learn new technologies independently from docs and online resources.

Skills

Network routing & switching

Data center networking

SD-WAN

Juniper

Cisco, Juniper, Brocade, Arista gear

Routing protocols

Carrier technologies (BGP, IS-IS, MPLS

Network design & implementation

Documentation (MS Office, Visio)

Client relationship & stakeholder mgmt

Learning new technologies

Fast-paced delivery

Job description

Xlysi LLC is seeking a Sr. Network Engineer in Spring, TX for a contract role with hybrid work options. The candidate should bring 10+ years of hands-on experience across routing/switching, data center fabric, spine-leaf architectures, and SD-WAN, with strong Cisco, Juniper, Brocade, and Arista expertise.

The role emphasizes design, implementation, migrations, and high availability. Applicants should demonstrate excellent client relationships, documentation skills with MS Office and Visio, and