Senior Specialist
Infinite Computer Solutions · Noida · onsite · Posted 63d ago
Not disclosed8–10 yrsfulltimeSourced from
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About this role
Job Description
T3 Support – IMS /CS CORE EXPERT
Role Summary
The L3 IMS/CS Core Expert is responsible for advanced troubleshooting, performance optimization, and end-to-end support of IMS and Circuit Switched (CS) Core network elements. The role involves handling complex issues escalated from L1/L2 teams, ensuring service continuity, and providing expertise for incident, problem, and change management.
With these activities, you will have a great impact on our business:
Key Responsibilities
Analyze call traces (SIP, Diameter, ISUP, MAP, CAP) and perform deep-dive RCA.
Support high-severity (P1/P2) incidents and ensure timely resolution.
Handle escalations from Tier-1/2 NOC for CS/IMS nodes (MSC/MSC-S, MGW, HLR/HSS, STP, MTAS, CSCF, SBG, ENUM, DRA, IBCF/TrGW).
Handle SIP registration issues, VoLTE attach failures, IMS bearer issues, and interworking problems.
Optimize VoLTE/IMS call flows, QoS, and media negotiation.
MSC, MSC-S, MGW, HLR, STP, VLR
Resolve circuit-switched issues (2G/3G call setup, supplementary services, roaming failures).
Qualifications
Bachelors Degree
Range Of Year Experience-Min Year
8
Range Of Year Experience-Max Year
10
T3 Support – IMS /CS CORE EXPERT
Role Summary
The L3 IMS/CS Core Expert is responsible for advanced troubleshooting, performance optimization, and end-to-end support of IMS and Circuit Switched (CS) Core network elements. The role involves handling complex issues escalated from L1/L2 teams, ensuring service continuity, and providing expertise for incident, problem, and change management.
With these activities, you will have a great impact on our business:
Key Responsibilities
- L3 Technical Support
Analyze call traces (SIP, Diameter, ISUP, MAP, CAP) and perform deep-dive RCA.
Support high-severity (P1/P2) incidents and ensure timely resolution.
Handle escalations from Tier-1/2 NOC for CS/IMS nodes (MSC/MSC-S, MGW, HLR/HSS, STP, MTAS, CSCF, SBG, ENUM, DRA, IBCF/TrGW).
Handle SIP registration issues, VoLTE attach failures, IMS bearer issues, and interworking problems.
Optimize VoLTE/IMS call flows, QoS, and media negotiation.
- CS Core Expert
MSC, MSC-S, MGW, HLR, STP, VLR
Resolve circuit-switched issues (2G/3G call setup, supplementary services, roaming failures).
Qualifications
Bachelors Degree
Range Of Year Experience-Min Year
8
Range Of Year Experience-Max Year
10
Sourced from foundit
Skills
EnumIBCFmedia negotiationMSC-STrGWCapMapQoScstpSIPhlrDramgwIMSVolteDiameterVoWiFiHSSCSCFMTASSBGISUPCS CoreRCA
About Infinite Computer Solutions
Infinite Computer Solutions
IT Services & Consulting
15k+
employees
2001
25 years old
Bangalore / Bengaluru, Karnataka
India
About
A global leader in IT and digital engineering services, emphasizing cloud and AI to deliver impactful solutions across various sectors.
Industries
IT Services & ConsultingSoftware Product
Employee ratings
2,096 reviews
3.2/ 5
Culture
3.0
Career growth
2.8
Work-life
3.3
Employees rate it well for
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