Network Administrator 3

Senior Network EngineerClient is seeking an experienced Senior Network Engineer to support and enhance the network infrastructure at our Rockdale, Texas facility. This role focuses on the design, deployment, operation, and troubleshooting of large-scale data center networks, including modern Spine-Leaf VXLAN EVPN fabrics, campus networking, WAN connectivity, and cloud integration. The ideal candidate is a hands-on engineer who thrives in a fast-paced production environment, possesses strong troubleshooting skills, and is comfortable working onsite to support critical infrastructure, deployments, escalations, and operational incidents.Key ResponsibilitiesDesign, deploy, and support next-generation VXLAN EVPN Spine-Leaf data center fabrics.Configure and troubleshoot routing protocols including BGP, OSPF, and static routing.Support data center switching platforms and network infrastructure including Arista, Cisco Nexus, Catalyst, Aruba, and related technologies.Perform onsite troubleshooting of network, server, and application connectivity issues.Lead network upgrades, hardware refreshes, migrations, and expansion projects.Develop and maintain network documentation, diagrams, standards, and operational procedures.Analyze packet captures, routing tables, control-plane information, and network telemetry to identify root causes of issues.Support and troubleshoot WAN, SD-WAN, internet, cloud, and inter-data center connectivity.Participate in incident response, root cause analysis (RCA), and operational reviews.Collaborate with data center operations teams, server teams, cloud teams, and external vendors.Utilize monitoring and analytics platforms to proactively identify and resolve issues.Participate in on-call support and maintenance activities as required.Contribute to network automation initiatives using scripting and infrastructure automation tools.Required Qualifications7+ years of enterprise or data center network engineering experience.Strong hands-on experience with: VXLAN EVPN Data Center Fabrics, Spine-Leaf architectures, BGP and OSPF, Layer 2 and Layer 3 networking, high-availability and resilient network design.Experience troubleshooting complex production network environments.Strong understanding of: routing and switching, VLANs, VRFs, QoS, DNS, DHCP, NTP, network monitoring and telemetry.Experience with cloud networking (Azure, AWS, or GCP).Excellent communication, documentation, and problem-solving skills.Ability to work onsite and perform physical troubleshooting within the data center environment.Preferred QualificationsExperience with: Arista EOS and CloudVision, Cisco Nexus and ACI, Aruba campus and wireless technologies, SD-WAN platforms, Infoblox DNS/DHCP, network automation tools such as Python, Ansible, or Terraform.Industry certifications such as: CCNP or CCIE, Arista ACE, JNCIP/JNCIE, AWS or Azure Networking certifications.