Specialist - IMS

Ericsson AB; Gurugram District; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

Ericsson Gurgaon is seeking an experienced Senior Core Network Engineer IMS / 5G Core Specialist to drive deployment, optimization and lifecycle management of Ericsson IMS platforms (SBG, CSCF, MTAS, BGF) and 5G Core components (PCC/PCG). The role requires strong design, planning, KPI-driven optimization, and cross‑vendor collaboration.

You will handle day‑to‑day project delivery, lead performance management, tuning, KPI analysis, and troubleshooting across multi‑vendor environments.

Qualifications

• Must have customer handling skills and excellent communication skills.
• At least 5–14 years of Deployment/Design/Planning/Optimization experience of IMS Core Nodes (SBG, CSCF, TAS) and MME, AMF, PCC, SGW, PGW, SMF, UPF, PCG, DNS, SMSC, MIO, NFVi.
• Strong troubleshooting skills on IMS / Cloud Core network.
• Experience in 5GC, cloud is added advantage.

Responsibilities

• Accountable for day-to-day delivery of the assigned project towards customer.
• Lead IMS & fixed voice Performance Management and Design Planning scope for large CSPs.
• Optimize IMS network per customer requirement & perform parameter tuning.
• Perform QoS, parameter, capacity audits as per customer requirement.
• KPI analysis and recommendations to improve customer satisfaction.
• Impact analysis for upgrades and NW changes.
• Troubleshooting, analysis, impact report and tracing (PCAP, Wireshark).
• Support with technical discussions in RFP discussions.
• Good communication required for global customers.
• Leading IMS & Cloud Core scope in service delivery/governance calls.
• End to End knowledge of IMS / Cloud Core network.
• IMS / VLTE / Cloud Core lifecycle maintenance (planning, deployment, monitoring, troubleshooting, tracing & reporting).

Job description

Join our Team

About this opportunity:

Looking an experienced Senior Core Network Engineer IMS / 5G Core Specialist with deep expertise in Ericsson IMS platforms (SBG, CSCF, MTAS, BGF) and 5G Core technologies (PCC and PCG). The ideal candidate will have strong experience in network planning, design, deployment, and KPI-driven optimization within multi-vendor telecom environments.

What you will do:

• Accountable for day-to-day delivery of the assigned project towards customer.
• Handle & Lead IMS & fixed voice Performance Management and Design Planning scope for large CSPs.
• Optimizing IMS network as per customer requirement & Perform parameters tuning etc.
• Perform QoS , parameter , capacity audit as per customer requirement.
• KPI analysis and recommendation to improve customer satisfaction.
• Impact analysis for upgrade and NW changes.
• Troubleshooting, Analysis, Impact Report and Tracing (PCAP, Wireshark).
• Support with technical discussions in RFP discussion.
• Good communication required for global customers.
• Leading IMS & Cloud Core scope in service deliver / governance calls.
• End to End knowledge of IMS / Cloud Core network.
• Comprehensive IMS / VLTE / Cloud Core life-cycle maintenance (e.g., planning, deployment, monitoring, troubleshooting, Tracing & reporting).

The skills you bring:

• Must have customer handling skills and excellent communication skills.
• Candidate should have at least 5-14 years of Deployment / Design/Planning /Optimization experience of IMS Core Nodes (SBG, CSCF, TAS etc) and MME, AMF, PCC, SGW, PGW, SMF, UPF, PCG, DNS,SMSC,MIO, and NFVi .
• Candidate should have strong troubleshooting skills on IMS / Cloud Core network.
• Experience in 5GC, cloud is added advantage
• Strong IMS & Voice network experience. With hands-on skills in tracing.
• Strong skills on Architecture and Interfaces for Ericsson Core network elements IMS, Fixed Voice, MSC, MGW, BC, HSS, CUDB, STP, DSC, MME, AMF, PCC, SGW, PGW, SMF, UPF, PCG, DNS,SMSC,MIO, and NFVi . etc.
• Expertise on operator network (IMS, Fixed Voice, CS, CUDB) and understanding.
• Strong Technical Knowledge on IMS Core Network and idea of E2E network.
• Detailed knowledge of Ericsson's existing and future product/services portfolio, roadmap information and system integration practices is advantageous.
• Need to know the automation concepts. Experience in python / scripting is beneficial.

“All academic credentials must be from recognized and accredited institutions and are further subject to verification.”

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.

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) || Gurgaon