Must Have Skills
5+ years of experience in DNS operations/support, with at least 2–3 years at L3 level.
Strong hands‐on experience with BIND (open‐source DNS).
Deep Understanding of
* TTL, caching behavior, and query resolution flow
* Latency and routing behavior
Nice to Have Skills
Experience with Anycast DNS deployments.
Exposure to other DNS software: Unbound, PowerDNS, Knot DNS.
Automation and scripting: Shell, Python, Ansible.
Monitoring tools.
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