Must Have Skills:
5+ years of experience in DNS
operations/support, with at least 2–3 years at L3 level

Solid hands‑on
experience with BIND (open‑source DNS)

Deep understanding of:

· DNS protocol internals

· Authoritative vs Recursive
DNS

· TTL, caching behavior, and
query resolution flow

Strong Linux/Unix system administration experience

Strong networking fundamentals:

· TCP/IP, UDP

· 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:

- Prometheus, Grafana, Nagios,
Zabbix

 ITIL processes (Incident, Problem, Change
Management experience)

Minimum Years of Experience:
5+





Certifications Needed: No

Top 3 responsibilities you
would expect the Subcon to shoulder and execute
 Act as L3 escalation point for
complex DNS incidents impacting production services

 Diagnose
and resolve critical DNS outages, performance degradation, and security
issues

 Provide
expert support for authoritative and recursive DNS infrastructures

 Work
closely with L1/L2 teams, NOC, and Core Network teams to restore services
quickly

Deep troubleshooting of BIND

Perform DNS protocol‑level analysis

Lead root cause analysis (RCA) for major
incidents

📌 Support Engineer DNS (Sydney)
🏢 Leading
📍 Sydney