Domain Support Specialist SAPC

Ericsson; Dadri; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

Ericsson Noida is seeking a Telecom Core Network specialist with deep expertise in LTE/4G, VoLTE/IMS, and 5G technologies to join our managed services delivery team. You will analyze complex call flows, troubleshoot critical network issues, and drive performance improvements across SAPC, CCPC, and SCP platforms.

The role focuses on providing 2nd line support, fault and incident management, and service assurance to ensure high availability and policy control across roaming networks and

Qualifications

• Experience in LTE/4G, VoLTE/IMS, and 5G core networks.
• Strong troubleshooting and RCA capabilities.
• Experience with roaming and policy control in large telecom environments.

Responsibilities

• Provide TA Core / 2nd Level Support for Core Network Operations across LTE/4G, VoLTE/IMS, and 5G Core domains, ensuring high network availability, service continuity, and rapid incident resolution.
• Responsible for fault management, service assurance, incident handling, problem management, and operational support of Core Network platforms.

Skills

Diameter signaling

HTTP signaling

VoLTE/IMS

LTE/4G

5G core

SAPC

CCPC

SCP

Roaming signaling

Troubleshooting

KPI analysis

Incident management

Service assurance

Tools

Ericsson SAPC

CCPC

SCP

Performance tools

Job description

About this opportunity:

Telecom Core Network professional with extensive experience in LTE/4G, VoLTE/IMS, and 5G technologies, specializing in Diameter & HTTP signaling, policy control solutions (Ericsson SAPC/CCPC), Service Communication Proxy (SCP), network performance management, and advanced troubleshooting. Proven expertise in analyzing complex call flows, resolving critical network issues, optimizing node performance, and supporting roaming and policy control functions across large-scale telecom environments. In this role, you'll be a crucial part of our Managed Services deliveries, in accordance with the needs of the Ericsson Operations Engine.

Join our Team

About this opportunity:

Telecom Core Network professional with extensive experience in LTE/4G, VoLTE/IMS, and 5G technologies, specializing in Diameter & HTTP signaling, policy control solutions (Ericsson SAPC/CCPC), Service Communication Proxy (SCP), network performance management, and advanced troubleshooting. Proven expertise in analyzing complex call flows, resolving critical network issues, optimizing node performance, and supporting roaming and policy control functions across large-scale telecom environments. In this role, you'll be a crucial part of our Managed Services deliveries, in accordance with the needs of the Ericsson Operations Engine.

What you will do:

• Provide TA Core / 2nd Level Support for Core Network Operations across LTE/4G, VoLTE/IMS, and 5G Core domains, ensuring high network availability, service continuity, and rapid incident resolution.
• Responsible for fault management, service assurance, incident handling, problem management, and operational support of Core Network platforms.

The skills you bring:

• Strong expertise in Diameter and HTTP signalling, including protocol analysis, message flows, cause codes, and troubleshooting.
• In-depth understanding of Diameter and HTTP cause codes, their interpretation, impact analysis, and resolution methodologies.
• Extensive knowledge of VoLTE, IMS, LTE/4G, and 5G call flows, including end-to-end call scenarios and interworking procedures.
• Comprehensive understanding of VoLTE/5G network architecture, interfaces, network elements, and associated functional components.
• Hands‑on expertise in Ericsson SAPC (Service‑Aware Policy Controller), CCPC (Cloud Core Policy Controller), and SCP (Service Communication Proxy) platforms.
• Advanced troubleshooting capabilities across LTE/4G, VoLTE/IMS, and 5G Core networks, including signaling, session management, and policy control issues.
• Strong knowledge of national and international roaming call flows, VoLTE roaming architecture, and inter‑operator signaling procedures.
• Experienced in analysing and optimizing performance, capacity, availability, and characteristics of SAPC, CCPC, and SCP network nodes.
• Skilled in fault isolation, root cause analysis (RCA), corrective actions, and network issue resolution within telecom core networks.
• Proficient in KPI analysis, service assurance, and maintaining service continuity for mission‑critical telecom platforms while maintaining Work Level Agreement (WLA) and Service Level Agreement (SLA).

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.

What happens once you apply?

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