VoLTE IMS background or trace analysis specialists

3 days ago


Chennai, Tamil Nadu, India Neev Full time ₹ 6,00,000 - ₹ 18,00,000 per year

CPD Operations Engineer – L3
Location:
Chennai (On-site / Hybrid)

Domain:
Telecom Core Network Operations / Emergency Call Support


Ideal Candidate Summary
A
senior-level Core Network Operations Engineer
with
5–10 years of experience
in managing
emergency call (E000/000) operations
,
Core & IMS troubleshooting
, and
regulatory compliance
. The candidate should have hands-on expertise in
VoLTE, IMS signaling
, and
trace analysis
using tools such as
NetScout, Splunk, NBA, and Ni4cc
.

Must be capable of
root cause analysis for emergency call failures
, coordinating with
Care, RAN, Core, and Handset teams
, and ensuring compliance with
ACMA/LEA
regulatory frameworks.


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)

Skills: troubleshooting,operations,netscout,emergency first response instruction,splunk,on-call support,volte,trace,core network



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