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Job Description
Job Title:
Network administrator_
LAN Location:
Wilmington, DE Duration:
6 months
GBaMS ReqID:
10801997 Open to remote 8-10+ years
Exp Must Have Skills:
VLAN & Inter-VLAN Routing:
Configuring, managing, and troubleshooting 802.1Q VLANs, Native VLANs, and Inter-VLAN routing on core/distribution/access switches. Spanning Tree Protocol (STP): Deploying and optimizing RSTP, MSTP, and Cisco Per-VLAN Spanning Tree (PVST+).
EtherChannel & Link Aggregation:
Implementing LACP and PAgP for high-bandwidth switch-to-switch and switch-to-server redundancy. Switch Virtual Interfaces (SVIs): Configuring and troubleshooting Layer 3 interfaces on multi-layer switches for efficient local routing.
Switch Stacking & Virtualization:
Configuring and maintaining hardware stacks. Port Security & 802.1
X:
Securing access layers using MAC address limiting, sticky MACs, and
IEEE 802.1X
network admission control (NAC) via Cisco ISE. Access Control Lists (ACLs): Designing and deploying Standard, Extended, and Time-based IP ACLs to filter traffic at the LAN boundary. DHCP Snooping & Dynamic ARP Inspection (DAI): Hardening switches against rogue DHCP servers, IP spoofing, and ARP poisoning attacks.
IPAM & Subnetting:
Managing enterprise IPv4 and IPv6 addressing schemes, VLSM optimization, and centralized IP Address Management (IPAM) systems. Quality of Service (QoS): Implementing Class of Service (CoS) and Differentiated Services Code Point (DSCP) mapping to prioritize voice, video, and critical business LAN traffic.
Network Monitoring & Performance Tuning:
Utilizing SNMPv3, NetFlow, Syslog to proactively track port utilization, errors, and drops.
Packet Analysis & Diagnostics:
Conducting deep-dive packet captures using Wireshark to troubleshoot latency, broadcast storms, and connectivity anomalies.
Core Routing Protocols:
Configuring and optimizing enterprise routing protocols, including OSPF, EIGRP, and Static Routing for robust LAN connectivity.
ServiceNow Lifecycle Management:
Advanced utilization of ServiceNow for structured ITSM workflows. Wireless Network requirements-
Controller Architecture:
Install, configure, and maintain high-availability Enterprise Wireless LAN Controllers (WLCs) in Stateful Switchover (HA-SSO) topology models.
Access Point Lifecycle:
Oversee the staging, provisioning, automated onboarding and physical/logical deployment of 802.11ax/802.11be (Wi-Fi 6E / Wi-Fi 7) Access Points.
Operating System Maintenance:
Plan, validate, and execute non-disruptive software maintenance, code updates, and emergency patching across all WLC deployments.
Upstream Switching Alignment:
Coordinate directly with the wired team to configure upstream trunk ports, native VLANs, Power over Ethernet (PoE+ / UPOE) budgets, and DHCP scopes required for AP operational stability. Good-to-Have Enough technical background to challenge solutions, approaches, and design discussion. Adhering to structured ITIL processes for Change, Incident, and Problem Management to minimize business disruption. Role descriptions / Expectations from the Role 1 Configuring, managing, and troubleshooting 802.1Q VLANs, Native VLANs, and Inter-VLAN routing. 2 Deploying and optimizing RSTP, MSTP, and Cisco Per-VLAN Spanning Tree. 3 Implementing LACP and PAgP for high-bandwidth switch-to-switch and switch-to-server redundancy. 4 Configuring and troubleshooting Layer 3 interfaces on multi-layer switches for efficient local routing. 5 Designing and deploying Standard, Extended, and Time-based IP ACLs to filter traffic at the LAN boundary. 6 Conducting deep-dive packet captures using Wireshark to troubleshoot latency, broadcast storms, and connectivity anomalies. Thanks, Akhil akhil dot macharla at adventglobal dot com
