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# SeniorAdministrator - Wireless Networking

- **Company:** Hcl Technologies Germany Gmbh
- **Location:** Eschborn, Germany
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** IEEE 802.1X, Wireless LAN, Border Gateway Protocol, Cisco Unified Communications Manager, Configuration Management Databases, Enhanced Interior Gateway Routing Protocol, EtherChannel, Trunking, Firmware, Hot Standby Router Protocol, Local Area Networks, Network Layer, Network Control, Network Diagrams, Network Monitoring, Cisco Nexus Switches, Open Shortest Path First (OSPF), Virtual Local Area Networks, Virtual Router Redundancy Protocols, Wide Area Networks, Wireless Access Point, Wireless Networks, ARUBA, SDN Network, SolarWinds (Software), Performance Monitor, Routing & Switching, Splunk, Cisco Switches, Cisco, Servicenow
- **Published:** October 22, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=740cbfcf5bddf9c4

## About the Role

* Cisco Catalyst Switching
 * Cisco Nexus Switching
 * Aruba CX Switching
 * VLANs, STP, EtherChannel
 * OSPF, EIGRP
 * HSRP, VRRP
 * Basic QoS knowledge
 * ServiceNow, * 3-5 years of LAN Operations experience.
 * Experience in enterprise campus networks.
 * Experience supporting 24x7 operations.

Preferred Certifications

 * CCNA Enterprise
 * Aruba Certified Associate
 * ITIL Foundation

Must Have Skill

Network LAN/WAN mgmt,Software-Defined Networking Wide Area Network (SD-WAN),Cisco Unified Wireless Networking

## Description

Job Summary : L2 Wireless Network Engineer - Cisco & Aruba WLAN Operations\\\\\\\\r\\\\\\\\nRole Summary\\\\\\\\r\\\\\\\\nThe L2 Wireless Engineer is responsible for operational support, monitoring, troubleshooting, configuration, and maintenance of enterprise wireless environments based on Cisco and Aruba technologies\\\\\\\\r\\\\\\\\n, The L2 LAN Network Engineer is responsible for operational support, monitoring, troubleshooting, configuration, and maintenance of enterprise LAN infrastructure across Cisco Catalyst, Cisco Nexus, Aruba CX, and HPE Comware environments. The role focuses on incident resolution, service requests, standard changes, and maintaining network availability in a 24x7 operational environment., LAN Operations Support

 * Support enterprise LAN infrastructure across global locations.
 * Monitor network health and availability.
 * Troubleshoot Layer 1, Layer 2, and Layer 3 connectivity issues.
 * Support VLAN, trunking, port configuration, and connectivity requests.
 * Execute standard network provisioning requests.

Switching Support

 * Cisco Catalyst 9000 Series
 * Cisco Nexus Platforms
 * Aruba CX Switches
 * HPE Comware Switching

Routing & Switching

 * Support OSPF, EIGRP, BGP environments.
 * Troubleshoot STP-related issues.
 * Support HSRP and VRRP operations.
 * Perform route verification and connectivity validation.

Incident & Request Management

 * Resolve L2 incidents within SLA.
 * Support L1 team whenever necessary and work closely with the L1 team.
 * Support service request fulfillment.
 * Escalate complex issues to L3 teams.
 * Update incident and change records in ServiceNow.

Change Management

 * Implement approved network changes.
 * Execute maintenance activities.
 * Validate successful implementations.
 * Perform rollback activities if required.

Monitoring & Tools

 * Cisco Catalyst Center (DNAC)
 * SolarWinds
 * Splunk
 * ThousandEyes
 * ServiceNow
 * iObserve

Documentation

 * Update network diagrams.
 * Maintain CMDB records.
 * Create implementation and troubleshooting reports., roaming investigations.\\\\\\\\r\\\\\\\\n* Escalate RF-related and complex issues to L3.\\\\\\\\r\\\\\\\\nConfiguration Management\\\\\\\\r\\\\\\\\n* SSID provisioning\\\\\\\\r\\\\\\\\n* AP deployment support\\\\\\\\r\\\\\\\\n* Controller configuration updates\\\\\\\\r\\\\\\\\n* WLAN policy implementation\\\\\\\\r\\\\\\\\nMonitoring\\\\\\\\r\\\\\\\\n* Aruba Central\\\\\\\\r\\\\\\\\n* Cisco Catalyst Center Assurance\\\\\\\\r\\\\\\\\n* SolarWinds\\\\\\\\r\\\\\\\\n* ThousandEyes\\\\\\\\r\\\\\\\\nCompliance & Reporting\\\\\\\\r\\\\\\\\n* Validate AP health.\\\\\\\\r\\\\\\\\n* Monitor controller availability.\\\\\\\\r\\\\\\\\n* Support firmware compliance activities.\\\\\\\\r\\\\\\\\n* Assist in wireless performance reporting.\\\\\\\\r\\\\\\\\nRequired Skills\\\\\\\\r\\\\\\\\n* Cisco WLC 9800\\\\\\\\r\\\\\\\\n* Cisco Access Points\\\\\\\\r\\\\\\\\n* Aruba Central\\\\\\\\r\\\\\\\\n* Aruba Controllers\\\\\\\\r\\\\\\\\n* WLAN Troubleshooting\\\\\\\\r\\\\\\\\n* WPA2/WPA3\\\\\\\\r\\\\\\\\n* 802.1X