VoLTE IMS background or trace analysis specialists

CPD Operations Engineer – L3

Location:

Domain:

Ideal Candidate Summary

senior-level Core Network Operations Engineer

5–10 years of experience

emergency call (E000/000) operations

Core & IMS troubleshooting

regulatory compliance

VoLTE, IMS signaling

trace analysis

NetScout, Splunk, NBA, and Ni4cc

root cause analysis for emergency call failures

Care, RAN, Core, and Handset teams

ACMA/LEA

Key Technical Skills

Core Domain & Protocols

• Deep understanding of 4G/5G Core Network Architecture
• Call flow expertise for Voice, SMS, Data, VoLTE, and VoWiFi
• Proficient in IMS/SIP signaling (INVITE, REGISTER, BYE, emergency session)
• Familiarity with PLMN, attach procedures, roaming, and fallback mechanisms
  

Emergency Call Support (E000/000 / 911)

• Monitoring & troubleshooting emergency call failures using NetScout, Splunk, NBA, Ni4cc
• Performing network activity checks for failed E000 events (Voice, Data, SMS)
• Coordinating welfare checks and regulatory reporting (ACMA/LEA compliance)
• Cross-operator validation for camp-on (cross-network) emergency calls
  

Tools & Technologies

• Monitoring/Tracing: NetScout, Ni4cc, NBA, Splunk, Wireshark
• Ticketing / ITSM: Helix, ServiceNow
• Protocols: SIP, Diameter, MAP, CAP, RTP
• Vendors: Nokia, Ericsson (Core & IMS preferred)
  

Soft & Analytical Skills

• Strong incident/problem management (ITIL framework)
• Excellent stakeholder communication (internal & external teams)
• Calm under pressure, with ownership-driven problem solving
• Clear documentation and reporting mindset
  

Mandatory Skills

• E000 / Emergency Call Handling
• VoLTE IMS & Core troubleshooting (4G/5G)
• Tools: NetScout, Splunk, Wireshark, NBA, Ni4cc
• SIP / Diameter trace analysis
• Regulatory (ACMA / LEA) compliance awareness
  

Good-to-Have Skills

• RAN (coverage-level) troubleshooting
• Exposure to Transport and IP domains
• Helix / ServiceNow ticket management
• Excel-based report automation and analytics
• Nokia MSP / Ericsson Core operational experience
  

🧩 Qualifications

• Bachelor’s in Electronics, Telecommunications, or equivalent
• 5–10 years of experience in Core Network Operations / Service Assurance / Emergency Call Support (E000 / 911)