Senior Voice & Data Core Engineer (Onsite, 24/7)

Singtel; Sydney; Hybride; AUD 140 000 - 180 000; Plein temps

Avantages offerts par ce poste

Remuneration package

Optus product discounts

On-site facilities

Counselling services

Résumé du poste

Optus is seeking a Voice and Data Core Senior Technical Specialist to ensure performance, availability, and reliability of critical network services within the Tier 2 Network Operations team.

The role provides 24/7 operational support across Voice and Data Core platforms, managing incidents, problems, and changes while working closely with vendors and engineering teams to support network enhancements and service improvements.

Qualifications

• Deep technical expertise in Mobile Packet and Policy Control (4G and 5G).
• Experience in service operations within telecommunications, including hands-on network support and troubleshooting with Ericsson Nodes.

Responsabilités

• Diagnose and resolve complex faults impacting Packet Core, IMS, Subscriber Data Management and 5G Core services escalated from Tier 1.
• Lead technical escalations during major incidents, coordinating cross-functional teams to restore services and minimise customer impact.
• Perform detailed root cause investigations and drive permanent corrective actions through structured problem management practices.
• Support and maintain operational performance across EPC, 5G Standalone Core, IMS and Subscriber Data Management platforms.
• Troubleshoot customer-affecting issues relating to mobility, data services, subscriber authentication, policy control, VoLTE and VoWiFi services.
• Analyse signalling and service flows across SIP, Diameter, HTTP/2, REST APIs, SS7 and SIGTRAN protocols.
• Collaborate with Engineering and Vendors to support software upgrades, capacity expansions, technology refreshes and strategic network initiatives.
• Monitor service performance and key operational metrics, identifying opportunities to improve network reliability and customer experience.
• Represent Operations within Change Advisory Board (CAB) processes and ensure deployment activities meet operational readiness and quality standards.
• Drive continuous improvement initiatives across event management, alarming, automation and operational tooling.
• Support the introduction of new technologies and ensure operational preparedness for future network capabilities.
• Mentor and coach team members, promoting technical excellence, knowledge sharing and operational best practice.

Connaissances

Mobile Core (4G/5G)

Signalling Protocols

Ericsson Nodes

Vendor Governance

Technical Communication

Problem Solving

Stakeholder Engagement

Description du poste

Optus is seeking a Voice and Data Core Senior Technical Specialist to ensure performance, availability, and reliability of critical network services within the Tier 2 Network Operations team.

The role provides 24/7 operational support across Voice and Data Core platforms, managing incidents, problems, and changes while working closely with vendors and engineering teams to support network enhancements and service improvements.