Must Have Skills:

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

Robust 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

#J-18808-Ljbffr

📌 Support Engineer DNS (City of Sydney)
🏢 Xpt Software Australia
📍 City of Sydney