IMS Engineer
Ericsson
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About the Opportunity
We are looking for a Senior Engineer – IMS 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: Bachelor’s degree in Electronics and Communication Engineering or related field
Experience: Relevant years in Core Network operations and support, particularly IMS/VoLTE
Relevant certifications in IMS, VoLTE, or Network Operations (optional but preferred)
Why join Ericsson?
At Ericsson, you´ll have an outstanding opportunity. The chance to use your skills and imagination to push the boundaries of what´s possible. To build solutions never seen before to some of the world’s toughest problems. You´ll be challenged, but you won’t be alone. You´ll be joining a team of diverse innovators, all driven to go beyond the status quo to craft what comes next.
What happens once you apply?
Click Here to find all you need to know about what our typical hiring process looks like.
Encouraging a diverse and inclusive organization is core to our values at Ericsson, that's why we champion 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 Employer. learn more.
Primary country and city: India (IN) || Noida
Req ID: 761142
Summary
Lead coordination and troubleshooting of IMS and Core Network activities.
Job title
IMS Engineer
Experience level
3+ years
Industry
telecommunications
Location requirements
Located in Noida, remote work not allowed.
Salary
Not specified
Visa sponsorship
H-1B sponsor history
Management role
No
Required skills
Preferred skills
Specializations
Structured locations inferred from the posting.
Noida, Uttar Pradesh, India