NexusTek · 1 day ago
Sr. Network Engineer (CONTRACT)
Alameda, CA
Contract
Hybrid
Senior Level
7+ years expNexusTek is seeking a Senior Network Engineer to support a strategic enterprise network modernization initiative for a key customer. This role involves architecture validation, remediation of technical debt, and execution of infrastructure improvements across campus and WAN environments.
Cloud Data ServicesCloud InfrastructureCloud ManagementCyber SecurityData CenterEnterprise Resource Planning (ERP)Enterprise SoftwareIT ManagementSoftwareVirtual Desktop
Responsibilities
Lead configuration, troubleshooting, and optimization across Cisco switching, routing, and fabric-based networking
Own Cisco SDA implementation components:
Border/edge and fabric architecture
VXLAN/EVPN workflows
SGT strategy and deployment
DNA Center automation and assurance
Drive Cisco ISE maturity:
Upgrade to current supported code
Implement wired and wireless 802.1X
Device profiling and posture enforcement
Integrate with Microsoft identity services
Improve wireless and access layer resiliency:
Evaluate and fix single points of failure
Optimize WLC config and RF planning
Enhance redundant uplinks and coverage
Participate in WAN and edge modernization:
BGP/OSPF cleanup and design
Palo Alto HA configuration and failover
Evaluate SD-WAN / SASE options
Troubleshoot advanced L2–L7 issues in production
Document changes and provide knowledge transfer to ops teams
Network automation and Infrastructure as Code, including the use of modern automation frameworks to improve consistency, scalability, and operational efficiency
Hands‑on experience with Ansible, APIs, Git, and Terraform for configuration management, automation, and cloud/network infrastructure provisioning
Observability and assurance at scale, with the ability to proactively monitor, analyze, and troubleshoot enterprise networks
Experience enabling and consuming telemetry, NetFlow, and IPFIX for traffic visibility and performance analysis
Familiarity with Cisco DNA Center Assurance, Palo Alto Panorama, and SIEM integrations to provide centralized visibility, security monitoring, and operational insights
Qualification
Required
7+ years enterprise networking experience
Strong Cisco implementation background (Catalyst/Nexus)
Hands-on Cisco SDA experience in production environments
Cisco ISE deployment (not just administration)
Palo Alto firewall deployment, HA, and IPsec VPNs
Wireless engineering experience (Cisco 9800 + 91xx APs)
Proficiency with BGP/OSPF and routing policy
Preferred
DNA Center workflows and automation
Azure routing + NVA experience
Experience in manufacturing or multi-building campus networks
Company
NexusTek
Delivering business outcomes with IT solutions that optimize, grow, and secure your business.
201-500 employees
H1B Sponsorship
NexusTek has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2021 (1)
Funding
Current Stage
Growth StageTotal Funding
unknownKey Investors
A&M Capital Strategic InvestmentsLightview Capital
2023-05-16Private Equity
2017-12-13Acquired
2014-09-11Private Equity
Leadership Team
Hamilton Yu
Chief Executive Officer
Scott Ray
Chief Operating Officer
Recent News
2025-12-05
Company data provided by crunchbase