Senior Engineer-CS/IMS Core
Ericsson · Noida · onsite · Posted 1d ago
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About this role
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 Strong analytical and communication skills.
Key Qualifications
- Education: Bachelors 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)
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About Ericsson
Ericsson
Telecom
22.3k+
employees
1876
150 years old
Stockholm, Sweden
Sweden
₹15L – ₹30L PA
This role
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Why join Ericsson?
At Ericsson, youll have an outstanding opportunity. The chance to use your skills and imagination to push the boundaries of whats possible. To build solutions never seen before to some of the worlds toughest problems. Youll be challenged, but you wont be alone. Youll be joining a team of diverse innovators, all driven to go beyond the status quo to craft what comes next.
Encouraging a diverse and inclusive organization is core to our values at Ericsson, that's why we nurture it in everything we do. We truly believe that by collaborating with people with different experiences we drive innovation, which is essential for our future growth. We encourage people from all backgrounds to apply and realize their full potential as part of our Ericsson team. Ericsson is proud to be an Equal Opportunity and Affirmative Action employer, learn more.
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