Assistant Manager - Network

Job Title: Assistant Manager – Network

Location: Dubizzle Labs, Karachi

Department: IT

Reports To: Director IT

Job Summary:

We are seeking an experienced Assistant Manager – Network to manage, optimize, and secure our enterprise network infrastructure. The ideal candidate will have hands-on expertise in WiFi, LAN/WAN, VLANs, routing, firewalls, VPNs, network security, and NMS setup. The candidate should also be skilled in WiFi noise management, broadcast optimization, and performance tuning.

Key Responsibilities:

1. WiFi & Wireless Network Management

• Design, deploy, and maintain enterprise-grade WiFi networks with optimal coverage, performance, and reliability.
• Troubleshoot WiFi issues, manage RF interference, noise cancellation, and unwanted broadcast traffic.
• Perform WiFi spectrum analysis, channel optimization, and high-density environment planning.

2. LAN/WAN & Network Infrastructure

• Configure and manage VLANs, Inter-VLAN routing, and network segmentation.
• Maintain LAN and WAN connectivity, including switches, routers, and network controllers.
• Optimize network performance and ensure high availability, redundancy, and traffic shaping (QoS).

3. Network Security & VPNs

• Configure and maintain firewalls, IPS/IDS systems, SSL VPN, IPsec VPN, and secure remote access.
• Implement network security policies, access controls, and compliance measures.
• Monitor security logs, detect threats, and respond to network incidents.

4. Network Management System (NMS)

• Setup, configure, and manage Network Management Systems (NMS) to monitor network devices, WiFi, LAN/WAN, and security appliances.
• Use NMS for real-time monitoring, alerting, performance metrics, and reporting.
• Analyze network data to proactively identify issues, optimize resources, and improve uptime.

5. Monitoring, Reporting & Optimization

• Generate performance and incident reports using NMS and other monitoring tools.
• Plan and implement network expansion, upgrades, and redundancy measures.
• Optimize network resources and WiFi performance for multiple devices and high-density areas.

6. Team Leadership & Collaboration

• Guide and mentor junior engineers in WiFi optimization, LAN/WAN troubleshooting, and security practices.
• Manage vendor relationships and procurement for network equipment and services.

Qualifications & Skills:

• Education: BS (Computer Science, IT, Electronics) or related field.
• Experience: 5+ years in enterprise networking, including WiFi, LAN/WAN, NMS, and network security.
• Technical Skills:
• • WiFi: 802.11a/b/g/n/ac/ax, RF planning, spectrum analysis, noise cancellation, broadcast management (Primarily for Unifi Environment)
  • LAN/WAN: VLANs, Inter-VLAN routing, static/dynamic routing, switches, routers.
  • Security: Firewalls, IPS/IDS, SSL/IPSec VPNs, traffic shaping, access control.
  • NMS: Setup, configuration, monitoring, reporting, alert management.
  • Protocols & Services: TCP/IP, DHCP, DNS, NAT, QoS.
  • Optimization: Bandwidth management, high-density WiFi, performance tuning.
• Soft Skills:
• • Analytical thinking, problem-solving, and incident management.
  • Excellent communication and collaboration skills.
  • Ability to work under pressure in complex network environments.

Preferred Certifications:

• CWNA / CWNP (Certified Wireless Network Administrator / Professional)
• Cisco CCNA / CCNP Routing & Switching or Wireless
• Fortinet NSE / Palo Alto Network Security Certifications
• NMS Vendor-specific certifications (Cacti, LibreNMS, Zabbix, SolarWinds, PRTG, or equivalent)