What are the responsibilities and job description for the Network Engineer (CONTRACT) position at Nexus Technologies LLC?
Network Engineer (Routing, Wireless, 802.1X / NAC)Engagement: Contract (6–12 months), extension likelyLocation: Alameda, CA preferred — hybrid onsiteStart: ASAPContract Engagement SummaryNetwork Engineer to support network stabilization and implementation efforts as part of a broader modernization initiative. This contract engagement will assist with switch and wireless configuration, Cisco ISE rollout, microsegmentation, and Palo Alto edge support across multi-site enterprise environments.ResponsibilitiesImplement and troubleshoot wired and wireless network changesConfigure Catalyst switches, VLANs, ACLs, and routing under direction of senior engineeringSupport Cisco ISE deployment including:802.1X on wired and wireless portsCertificate-based onboardingPosture validation rolloutAssist with microsegmentation enforcement using SGTsValidate wireless coverage, perform tuning, and improve redundancySupport firewall change requests and VPN connectivity testingTroubleshoot production issues related to:L2/L3 connectivityISE authenticationDNS/DHCP/RADIUS interactionsParticipate in change windows and document implementation workNetwork 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.Required ExperienceMust Have3–7 years enterprise network engineering experienceStrong routing switching fundamentals (Catalyst 9k)Hands-on Cisco wireless (9800 WLC preferred)Experience with 802.1X and NAC conceptsFamiliarity with Cisco ISE configurationNice to HaveExposure to Cisco SDA / DNACBasic Palo Alto firewall experienceAzure networking familiarityExperience working across multiple buildings or sites Technical Stack Contractor Should KnowCisco Catalyst (L2/L3)Cisco 9800 9120/9160 APsCisco ISE fundamentalsBGP/OSPF basicsPalo Alto firewall conceptsIPsec VPNDHCP/DNS/RADIUSContractor TraitsReliable hands-on executorComfortable operating in live networks with guardrailsWorks well with senior engineer oversightCurious, disciplined, detail-orientedCalm under pressure in time-bound change windows #LI-SH1