NexusTek · 1 day ago
Network Engineer (CONTRACT)
Alameda, CA
Contract
Hybrid
Mid, Senior Level
3+ years expNexusTek is seeking a Network Engineer to support network stabilization and implementation efforts as part of a broader modernization initiative. The role involves assisting with switch and wireless configuration, Cisco ISE rollout, microsegmentation, and Palo Alto edge support across multi-site enterprise environments.
Cloud Data ServicesCloud InfrastructureCloud ManagementCyber SecurityData CenterEnterprise Resource Planning (ERP)Enterprise SoftwareIT ManagementSoftwareVirtual Desktop
Responsibilities
Implement and troubleshoot wired and wireless network changes
Configure Catalyst switches, VLANs, ACLs, and routing under direction of senior engineering
Support Cisco ISE deployment including:
802.1X on wired and wireless ports
Certificate-based onboarding
Posture validation rollout
Assist with microsegmentation enforcement using SGTs
Validate wireless coverage, perform tuning, and improve redundancy
Support firewall change requests and VPN connectivity testing
Troubleshoot production issues related to:
L2/L3 connectivity
ISE authentication
DNS/DHCP/RADIUS interactions
Participate in change windows and document implementation work
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
3–7 years enterprise network engineering experience
Strong routing + switching fundamentals (Catalyst 9k)
Hands-on Cisco wireless (9800 WLC preferred)
Experience with 802.1X and NAC concepts
Familiarity with Cisco ISE configuration
Implement and troubleshoot wired and wireless network changes
Configure Catalyst switches, VLANs, ACLs, and routing under direction of senior engineering
Support Cisco ISE deployment including: 802.1X on wired and wireless ports, Certificate-based onboarding, Posture validation rollout
Assist with microsegmentation enforcement using SGTs
Validate wireless coverage, perform tuning, and improve redundancy
Support firewall change requests and VPN connectivity testing
Troubleshoot production issues related to: L2/L3 connectivity, ISE authentication, DNS/DHCP/RADIUS interactions
Participate in change windows and document implementation work
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
Preferred
Exposure to Cisco SDA / DNAC
Basic Palo Alto firewall experience
Azure networking familiarity
Experience working across multiple buildings or sites
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