NOC Tier 3
CallTek
| Company | CallTek |
| Category | Uncategorised |
| Location | Cebu City |
| Remote | On-site (inferred) |
| Employment | Full-time |
| Level | Not stated |
| Salary | Not stated by the employer |
| Posted | 31 Jul 2026 |
| Last verified | 2 Aug 2026 |
| Source | Employer career page (workable) |
Description
The Tier 3 IT Support & NOC Agent serves as the highest level of technical escalation within a client environment. This role is responsible for resolving complex, high-impact issues while also providing advanced monitoring oversight, incident response leadership, and infrastructure improvement across client environments. This position combines deep technical expertise with proactive operational responsibility, ensuring system stability, performance, and reliability. The Tier 3 Engineer plays a key role in root cause analysis, automation, monitoring strategy, and technical leadership while supporting both reactive escalations and proactive service delivery. Key Responsibilities Network Monitoring & Performance Monitor infrastructure using SolarWinds, PRTG, Nagios, Zabbix, and other proprietary monitoring systems like Cosmos Analyze performance trends, bandwidth, latency, packet loss, and KPIs Maintain monitoring thresholds, alert policies, and SLA metrics Incident & Problem Management Respond to alerts and outages within SLA timeframes Perform triage, diagnosis, and manage incident lifecycle Conduct root cause analysis and document lessons learned Track trends and recommend preventive measures Escalation Management Serve as primary escalation point for Tier 1 and Tier 2 support agent teams. Escalate complex issues to Tier 4 engineers and specialized teams Coordinate vendor support and facilitate bridge calls during major incidents Manage communication between technical teams, management, and stakeholders Network Operations & Maintenance Execute firmware updates, patches, and configuration changes Configure routers, switches, firewalls, load balancers, wireless controllers Implement VLANs, access control policies, and VPN connections Perform change management and maintenance window activities Troubleshooting & Support Resolve issues across LAN, WAN, MPLS, SD-WAN, wireless networks Troubleshoot routing/switching (BGP, OSPF, EIGRP, STP) Analyze traffic using Wireshark, tcpdump, or other Address DNS, DHCP, firewall, NAT, and VoIP issues Work on SSID requests, conference issues and other special requests Systems & MSP Support Solve complex Windows/macOS issues and lead Root Cause Analysis for recurring problems. Architect and manage Hybrid Active Directory, Azure/Entra ID, and the full Microsoft 365 suite. Help build advanced scripts (PowerShell) and RMM workflows to automate manual tasks and monitoring. Oversee EDR security deployments and lead disaster recovery operations. Security Operations & Compliance Monitor security event logs and SIEM alerts for potential threats or breaches Implement and maintain network security policies and access control lists (ACLs) Respond to security incidents and coordinate with security operations team Perform security vulnerability assessments on network devices Ensure compliance with organizational security standards and regulatory requirements Maintain audit logs and documentation for compliance reporting Participate in security incident response procedures Field Technician Coordination & Dispatch Work with field technicians and coordinate tech dispatches for: PMS (Property Management System) troubleshooting and connectivity issues WiFi site surveys, coverage analysis, and wireless optimization 3rd party vendor troubleshooting including video, VoIP, Conference Room Technology Coordinate on-site troubleshooting activitie
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