CS Core Engineer

Ericsson GmbH; Mumbai; On-site; INR 4,000,000 - 7,000,000; Full time

Job summary

Ericsson GmbH in Mumbai is seeking an experienced CS Core Engineer to join the Circle Operations team. You will operate, monitor, and troubleshoot CS Core and subscriber data management network elements to ensure service availability and optimal performance.

The role involves coordinating with OEMs and cross-functional teams, handling incident management, and supporting 24x7 operations in a fast-paced telecom environment. Strong knowledge of HSS, HLR, and related entities is essential to succeed.

Qualifications

• 8–14 years of Telecom Core Network Operations experience.
• Experience in CS Core and Subscriber Data Management.
• Experience with network monitoring, KPI analysis, traffic management.
• Knowledge of incident, ticket, and work order management.
• Flexibility for 24x7 operations.

Responsibilities

• Operate, monitor and troubleshoot CS Core and subscriber data management elements.
• Ensure service availability and network performance.
• Collaborate with OEMs, cross-functional teams and stakeholders.
• Support incident management and operational escalations.

Skills

CS Core networking

Subscriber Data Management

Monitoring & troubleshooting

Incident management

Stakeholder communication

Tools

HSS

HLR

STP

DRA

MGCF

MSS

GMSC

UDM

SCP

Nokia

Oracle

Huawei

Ericsson

Job description

Join our Team

About this opportunity

We are looking for an experienced CS Core Engineer to join our Circle Operations team. In this role, you will be responsible for the operations, monitoring, and troubleshooting of CS Core and subscriber management network elements, ensuring service availability and network performance. You will collaborate with OEMs, cross-functional teams, and business stakeholders to support critical network services and customer experience.

What you will bring

• Strong expertise in CS Core network technologies and subscriber management platforms.
• Hands-on experience with HSS, HLR, STP, DRA, MGCF, MSS, GMSC, UDM, and SCP.
• Good understanding of Authentication, Roaming, VoLTE, HSS, DRA, and UDM functionalities.
• Experience in troubleshooting network and service-level issues, OEM coordination, and operational incident management.
• Exposure to multi-vendor telecom environments, preferably Nokia, Oracle, Huawei, and Ericsson.

You will have

• 8–14 years of experience in Telecom Core Network Operations, with a focus on CS Core and Subscriber Data Management domains.
• Experience in network monitoring, KPI analysis, traffic management, and operational support.
• Knowledge of incident, ticket, and work order management processes.
• Ability to work effectively in a fast-paced operational environment with flexibility to support 24x7 operations.
• Strong communication, stakeholder management, and problem-solving skills.

"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.

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Primary country and city: India (IN) || Mumbai