Tier 3 IT Support & NOC Engineer

About the role

We are seeking a highly skilled Tier 3 IT Support & NOC Engineer to lead advanced troubleshooting, monitor critical infrastructure, and act as the primary escalation point for Tier 1 and Tier 2 teams. The role blends network operations, systems administration, and security to ensure optimal availability and performance of client environments.

Key responsibilities

• Monitor infrastructure using SolarWinds, PRTG, Nagios, Zabbix, Cosmos and other platforms.
• Diagnose and resolve complex network, system, and connectivity incidents.
• Perform root‑cause analysis (RCA) and drive continuous improvement.
• Configure and manage routers, switches, firewalls, VLANs, VPNs, wireless controllers and load balancers.
• Analyze traffic with Wireshark and tcpdump; resolve DNS, DHCP, NAT, VoIP and QoS issues.
• Support Windows, macOS, Active Directory, Azure/Entra ID and Microsoft 365 environments.
• Automate tasks using PowerShell and RMM tools; apply firmware upgrades and patches.
• Monitor security events, SIEM/EDR alerts and coordinate escalations with vendors.
• Create and maintain documentation, network diagrams, SOPs and incident reports.
• Participate in disaster recovery, capacity planning and security initiatives.

Required profile

• Minimum 2 years of experience in NOC, network operations or infrastructure support.
• Strong hands‑on troubleshooting skills for LAN, WAN, MPLS, SD‑WAN and wireless networks.
• Deep knowledge of TCP/IP, VLANs, QoS, DNS, DHCP and NAT.
• Experience with routing protocols BGP, OSPF, EIGRP and STP.
• Familiarity with Cisco, Ruckus, Aruba/HP and Meraki equipment.
• Experience with firewalls such as Cisco ASA, Fortinet or WatchGuard.
• Proficiency with monitoring tools (SolarWinds, PRTG, Nagios, Zabbix).
• Solid understanding of Windows, macOS, Active Directory, Azure/Entra ID and Microsoft 365.

Required skills

• SolarWinds
• PRTG
• Nagios
• Zabbix
• Cosmos
• Wireshark
• tcpdump
• PowerShell
• RMM tools
• Cisco ASA
• Fortinet
• WatchGuard
• Cisco routers & switches
• Ruckus
• Aruba/HP
• Meraki
• BGP
• OSPF
• EIGRP
• STP
• VLAN
• QoS
• DNS
• DHCP
• NAT
• VoIP
• Load balancers
• Windows
• macOS
• Active Directory
• Azure/Entra ID
• Microsoft 365
• SD‑WAN
• VPN
• SIEM/EDR