Lead coordination, execution, and troubleshooting of reactive maintenance for IMS and circuit-switched core network domains. Perform configuration changes, hardware expansions, root-cause analysis, and complex issue resolution across IMS/VoLTE and legacy telecom systems. Ensure compliance with standardized operational processes, maintain technical documentation, prepare reports, and collaborate with cross-functional teams to support service continuity and network improvements.
Join our Team
About the Opportunity
We are looking for a Engineer/Senior Engineer - IMS/CS Core to join our team and lead the coordination, execution, and troubleshooting of high-level reactive maintenance activities in Core Network domains. You will be responsible for supporting complex technical issues beyond the scope of 1st level Operations, ensuring service continuity and adherence to processes like MSTOP.
What You Will Do
You Will Bring
Key Qualifications
"All academic credentials must be from recognized and accredited institutions and are further subject to verification".
About the Opportunity
We are looking for a Engineer/Senior Engineer - IMS/CS Core to join our team and lead the coordination, execution, and troubleshooting of high-level reactive maintenance activities in Core Network domains. You will be responsible for supporting complex technical issues beyond the scope of 1st level Operations, ensuring service continuity and adherence to processes like MSTOP.
What You Will Do
- Perform configuration changes, hardware expansions, and troubleshooting activities for:CS Core Nodes: MSC, MGW, HLR, HSS, STP, SBC,IMS Core Nodes: UDM (CUDB, HSS-FE, HLR-FE), P-CSCF, I-CSCF, S-CSCF, ATS, MGCF, MRFP, CG, ENUM, DRA, UPG.
- Ensure all actions follow approved and standardized operational processes (MSTOP)
- Conduct RCA (Root Cause Analysis) and prepare technical reports
- Collaborate with cross-functional teams to drive issue resolution and network enhancements
- Maintain documentation of configurations, issues, and resolutions.
You Will Bring
- Strong knowledge of telecom protocols including:
- SIP, H.248, SS7, ISUP, BICC, SIGTRAN, INAP, CAP, TCAP, MAP, SCCP, Diameter
- Deep understanding of: Call flows in CS Core,IMS / VoLTE architecture and operations
- Ability to troubleshoot and resolve complex IMS and legacy network issues.
Key Qualifications
- Education: Bachelor's degree in Electronics and Communication Engineering or related field.
- Experience: Relevant 5+ years in Core Network operations and support, particularly IMS/VoLTE.
- Relevant certifications in IMS, VoLTE, or Network Operations (optional but preferred).
"All academic credentials must be from recognized and accredited institutions and are further subject to verification".
Ericsson Pune, Mahārāshtra, IND Office
Ericsson Pune Hub Office
Established IT zone near Viman Nagar with good airport access. Surrounded by cafes, housing and retail, offering a comfortable city lifestyle with a slightly slower pace than larger metros.
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