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Level 3 (L3) Network Technical Support Engineer

2 months, 3 weeks ago
Philippines
Senior
Network Engineer
DevOps and Infrastructure
Bash Fortinet Network Security Python
Apply Now
CallTek

CallTek

CallTek provides Technology as a Service (TaaS) solutions, offering support services that empower technology operators and service providers to enhance their operations with comprehensive infrastructure, procurement, and lifecycle support tailored to v...

Internet Software & Services
51-250
Founded 2004
View All Jobs 2

Description

  • Diagnose and resolve complex LAN/WAN, Wi‑Fi, and security-related network issues.
  • Handle escalations involving VLANs, routing, switching, firewall rules, and network segmentation.
  • Configure and maintain switches, wireless access points, firewalls, and other network devices.
  • Perform advanced network configurations including VLAN setup, trunking, ACLs, QoS, and firewall policies.
  • Support headend equipment configuration and optimization.
  • Provide expert-level support across MikroTik, Aruba, Ruckus, Cambium, and Fortinet environments.
  • Perform root cause analysis on recurring network issues and implement long-term fixes.
  • Support and optimize hospitality network environments, including guest and staff networks.
  • Monitor network health, performance, and security to prevent outages and service degradation.
  • Act as the final escalation point for unresolved L1/L2 issues and coordinate with vendors or third-party providers.

Requirements

  • 5+ years of experience in network support or network engineering, including at least 2 years in an L3 or senior role.
  • Strong hands-on expertise with VLANs, ACLs, routing, switching, NAT, and firewall policies.
  • Experience with wireless network design and troubleshooting.
  • Proven experience with MikroTik, Aruba, Ruckus, Cambium, and Fortinet switches and firewalls.
  • Experience supporting hospitality or high-density guest network environments.
  • Familiarity with walled garden configurations and captive portals.
  • Strong troubleshooting, analytical, and problem-solving skills.
  • Excellent communication skills for customer and cross-team collaboration.
  • Certifications such as CCNP, Fortinet NSE, Aruba ACMP/ACSP, Ruckus, Meraki, or MikroTik MTCNA/MTCRE are preferred.
  • Knowledge of network monitoring tools such as PRTG or SolarWinds is preferred.
  • Knowledge of scripting or automation with Python or Bash is preferred.
  • Understanding of ITIL processes and incident management is preferred.

Interested in this position?

Apply directly on the company website

Apply Now

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