Network Engineer

Samsung SDS America is a global information technology services organization that delivers innovative technology solutions supporting enterprise clients across logistics, digital transformation, cloud, mobility, and business operations. As part of Samsung SDS, employees work alongside talented professionals on technologies that improve business performance, enhance operational efficiency, and accelerate digital transformation initiatives across global organizations. The Network Engineer is responsible for designing, implementing, administering, optimizing, and troubleshooting enterprise network infrastructure supporting corporate campuses, branch offices, data centers, remote users, and wireless environments. The engineer will operate in a 24x7 enterprise environment, supporting critical incidents, planned maintenance, infrastructure upgrades, and continuous improvements while maintaining network availability, performance, and security. Switching & Routing Design, configure, maintain, and troubleshoot enterprise Cisco switching and routing environments. Support Cisco Catalyst and Nexus platforms, including Catalyst 9000-series and current-generation Nexus switches. Configure and troubleshoot Layer 2/Layer 3 networking, VLANs, 802.1Q trunking, EtherChannel/LACP, SVIs, inter-VLAN routing, and DHCP relay. Implement and troubleshoot STP, RSTP, MST, root-bridge optimization, loop prevention, and high-availability technologies including StackWise and StackWise Virtual. Configure and troubleshoot OSPF, BGP, EIGRP in legacy environments, static/floating static routes, route redistribution, route filtering, ECMP, VRF/VRF-Lite, and policy-based routing. Support WAN, Internet-edge, and data-center routing, including troubleshooting asymmetric routing and route propagation issues. Implement network security controls including port security, storm control, BPDU Guard/Root Guard, DHCP Snooping, Dynamic ARP Inspection, and IP Source Guard. Perform software upgrades, configuration management, hardware lifecycle planning, and network capacity planning. Enterprise Wireless Design, deploy, administer, troubleshoot, and optimize enterprise Cisco wireless environments. Support Cisco wireless controllers, Catalyst wireless solutions, access points, corporate and guest SSIDs, and high-density wireless environments. Configure and troubleshoot 802.1X, WPA2/WPA3 Enterprise, wireless authentication, roaming, RF performance, and client connectivity. Conduct wireless performance and capacity analysis and participate in wireless surveys. Utilize wireless analysis tools such as Ekahau; experience is highly desirable. Network Access Controls Implement, administer, and troubleshoot Cisco ISE for enterprise network access control. Configure 802.1X, MAB, EAP, PEAP, EAP-TLS, and certificate-based authentication. Integrate ISE with Active Directory, RADIUS, and TACACS+ environments. Configure authorization policies, guest portals, and BYOD onboarding. …