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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Inperson Interview_ Network L3 - Network Routing & Switching_New York - **Company:** Themesoft Inc - **Location:** New York, NY, United States - **Experience:** Expert - **Salary:** $104,000.0 - $112,320.0 - **Contract:** Temporary contract - **Skills:** Microsoft Access, IEEE 802.1X, Border Gateway Protocol, Catalyst (Software), Communications Protocols, Complex Networks, Computer Networks, Dynamic Host Configuration Protocol, Dynamic Multipoint Virtual Private Networks, Domain Name System (DNS), Internet Group Management Protocols, Networking Hardware, Internet Protocol Security (IP SEC), Multicasting, Routing, Cisco Nexus Switches, Open Shortest Path First (OSPF), Overlay Transport Virtualization, Ansible, SAP Sales and Distribution, Terminal Access Controller Access-Control System (TACACS), Wide Area Networks, Network Routing, Identity Services Engine, Routing & Switching, Cisco - **Published:** September 28, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=0acc53c8100d0e8a ## About the Role 10+ years of enterprise network engineering experience. Strong expertise in Routing & Switching. Excellent knowledge of BGP, OSPF, STP, and Multicast. Hands-on experience with Cisco and/or Arista platforms. Strong experience with Cisco SD-Access (SDA), DNA Center (DNAC), and VXLAN - Mandatory. Experience with Cisco ISR, ASR1K, ASR9K, Catalyst 9K, and Nexus 9K. Strong knowledge of IGMPv2/v3, PIM, Static RP, and RP-Anycast. Experience with IPsec, DMVPN, VXLAN, SD-WAN, SDA, and MACsec. Experience with IoT deployment, IoT communication protocols, and troubleshooting IoT connectivity. Knowledge of Cisco ISE, 802.1X/NAC, TrustSec, TACACS, DNS, and DHCP. Understanding of 10G/25G/40G/50G/100G optics, breakout cables, and panels. CCIE Lab Certification - Mandatory. Ansible knowledge - Good to have. ## Description We are seeking a highly experienced L3 Network Engineer with 10+ years of enterprise networking experience and strong expertise in Routing & Switching, SD-Access, DNAC, VXLAN, and IoT networking. The candidate should have strong hands-on experience with Cisco/Arista platforms and complex network troubleshooting., Design, implement, and troubleshoot enterprise routing and switching environments. Develop and support lab frameworks for connecting IoT endpoints to campus/branch networks. Test and validate network hardware, software features, endpoint functionality, and IoT communication scenarios. Configure and troubleshoot SD-Access, DNAC, VXLAN, NAC/802.1X, and TrustSec environments. Troubleshoot complex network connectivity, routing, switching, and IoT-related issues. Collaborate with network engineering, IoT, security, and other cross-functional teams. Prepare technical documentation and provide timely status reports. 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