Network Security Engineer

Job Summary:

We are seeking a proactive and detail-oriented Network Security Engineer to support day-to-day network and data center operations. This role involves hands-on support for network infrastructure, wireless connectivity management, basic DNAC and SD-Access operations, and collaboration platform troubleshooting including Webex devices. The ideal candidate should possess foundational experience in enterprise networking environments and a willingness to support both physical and logical network layers.

Key Responsibilities:

A. Data Center & Network Infrastructure Support

• Install and decommission network devices (switches, routers) in data center racks
• Perform cabling between racks and between Data Center (DC) and TER rooms
• Label, tag, and update barcodes/serials of network devices
• Coordinate device RMA with ISP vendors and OEMs
• Change and test fiber cables and structured cabling as required

B. Wireless & DNAC Configuration Support

• Assist in wireless LAN management tasks, including AP installations and replacements
• Basic configuration of WLC (Wireless LAN Controller) and DNAC for:
• User port setup
• AP onboarding and troubleshooting
• RMA processes and connectivity testing
• Perform basic SD-Access-related support and troubleshooting under guidance from senior engineers

C. End-User and Collaboration Support

• Provision and troubleshoot end-user connectivity issues (wired/wireless)
• Configure and test Webex devices, Cisco codecs, and third-party AV/collaboration equipment
• Coordinate with AV/collaboration teams for deployments and escalations
• Conduct basic checks for IP clocks, attendance devices, wall displays, and related endpoints

D. Network Documentation & Inventory Management

• Maintain updated network diagrams and cabling layouts
• Conduct physical inventory checks and document device status
• Support connectivity and device management for TER rooms and remote locations

Required Skills and Qualifications:

• Diploma or Bachelor's in IT, Electronics, or related field
• 3–6 years of experience in network operations, wireless, and Security infrastructure support
• knowledge and hands-on exposure to:
• Cisco DNAC platform
• Wireless access point setup and WLC configuration
• SD-Access environment basics
• Security Device management
• Webex Room Devices and Collaboration tools
• Familiarity with enterprise network topologies and structured cabling
• Strong coordination and documentation skills

Preferred Certifications:

• Cisco Certified Technician (CCT) – Required
• Cisco Certified Network Associate (CCNA) – Preferred
• Cisco Certified Specialist – Enterprise Wireless or Collaboration – Bonus
• ITIL Foundation (optional)
• Firewall (Cisco/Paloalto/Fortinet

Work Conditions:

• On-site work across data centers, remote branches, and end-user premises
• Rotational shifts or extended hours during critical activities
• Physical handling and movement of network/AV equipment required