Senior Network & Systems Specialist
Core
Operate, maintain, troubleshoot, and improve core and distribution networks for an ISP, including routing, switching, and infrastructure upgrades.
Role type
Senior hands-on network & systems engineer
Builds
Core and distribution networks, network upgrades, migrations, and infrastructure improvements
Domain
Internet Service Provider (ISP) / Telecommunications
Required skills
Routing and switching (BGP, VLANs, IP addressing), Cisco router/switch configuration (ASR 1000), Linux administration, RADIUS/AAA platform configuration, network monitoring (Zabbix, PRTG), technical documentation, incident response, project management
Preferred skills
Cisco Catalyst/Nexus switches, PPPoE/L2TP, ISC DHCP Server, Windows Server/FreeBSD, Sandvine ActiveLogic, Juniper NetScreen firewalls, VoIP/SIP (3CX, Asterisk), Ubiquiti EdgeRouters, fibre/Ethernet deployments
Technologies
Asterisk, Cisco, Ethernet, Linux, Nexus, Security, Windows, Zabbix
Responsibilities
Operate and maintain core and distribution networks; take ownership of complex technical issues from investigation to resolution; configure routers, switches, firewalls, and servers; lead system builds, upgrades, and migrations; act as senior escalation point for outages; serve as primary on-call resource; respond to outages at data centers and customer locations; guide and mentor Technical Support and Field Services teams; inspect network installations for compliance; oversee equipment inventory
Seniority
Senior, hands-on IC
