Support Engineer L3
Core
L3 Support Engineer specializing in DNS operations, troubleshooting, and infrastructure management.
Role type
Senior IC Support Engineer (DNS)
Builds
DNS infrastructure and resolution services
Domain
Networking / DNS
Deliverable
client delivery
Required skills
DNS protocol internals, BIND, Linux/Unix system administration, TCP/IP, UDP, Authoritative vs Recursive DNS, TTL and caching behavior, query resolution flow
Preferred skills
Anycast DNS deployments, Unbound, PowerDNS, Knot DNS, Shell scripting, Python, Ansible, Prometheus, Grafana, Nagios, Zabbix, ITIL processes
Technologies
BIND, Unbound, PowerDNS, Knot DNS, Prometheus, Grafana, Nagios, Zabbix, Ansible
Responsibilities
Troubleshoot complex DNS issues at L3 level, manage DNS infrastructure, perform system administration on Linux/Unix, monitor DNS performance and availability
Seniority
Senior, hands-on IC
