Senior Engineer

Ericsson GmbH; Uttar Pradesh; On-site; INR 1,400,000 - 2,100,000; Full time

Job summary

Ericsson is seeking a dynamic MS Core and Cloud Specialist in Noida, India. You will interface with CS Core, PS Core, IMS, IP Core and Cloud domains, driving Create, Sustain and Evolve activities for Managed Services deliveries.

Responsibilities include configuring core nodes, performing software updates, traffic optimization, APN/DNN configurations, and monitoring KPIs during maintenance windows. Strong 3GPP knowledge and VoLTE/IMS exposure are required.

Qualifications

• Degree in Electronics & Communication Engineering.
• 4–8 years in telecom industry experience.

Responsibilities

• Configure and troubleshoot core network nodes (AMF/SMF/UPF/UDM/PCF).
• Perform software updates on core network elements with minimal customer impact.
• Manage traffic distribution and load balancing across core elements.
• Implement APN/DNN configurations per network design.
• Monitor node health and KPIs during maintenance windows.
• Support 4G/5G Core operations including validation and performance optimization.

Skills

Network Nodes

5G SA

5G NSA

LTE

VoLTE

VoNR

GSM

GPRS

SS7

IN

OpenStack

OpenShift

Education

Degree in Electronics and Communication Engineering

Job description

Join our Team

About this opportunity:

Ericsson is currently seeking a dynamic MS Core and Cloud Specialist. This vital role is grounded in technology leadership and expertise, and it will interface with a variety of our Core and Cloud domains, including CS Core, PS Core, IMS, IP Core, and Cloud. As part of the Ericsson Operations Engine, your responsibilities span the full cycle of Create, Sustain and Evolve, making a pivotal impact on our Managed Services deliveries.

What you will do:

• Good Technical Knowledge, configuration and troubleshooting experience of the specific CORE nodes viz AMF/SMF/UPF/UDM/PCF/NRF/SGSN/MME/GGSN/DNS /PCRF/PGW/SGW/ePDG/AAA.
• Perform software updates and upgrades on core network nodes while ensuring service stability and minimal customer impact.
• Manage traffic optimization and loa d distribution across core network elements such as MME, GGSN, SMF, and AMF to maintain balanced network utilization.
• Implement and validate APN/DNN configurations in accordance with network design and service requirements.
• Execute capacity-related subscriber migrations and load balancing activities to maintain optimal network performance.
• Execute network changes during Maintenance Windows (MW) in accordance with approved Change Requests (CR).
• Monitor node health, KPIs, and alarms during maintenance activities to ensure network stability.
• Support 4G/5G Core network operations, including configuration validation, troubleshooting, and performance optimization.
• Strong understanding and hands-on experience with 3GPP standards, VoLTE/IMS related configurations within core network elements such as MME and GGSN/PGW and Packet Switched (PS) Core protocols.
• Sound domain knowledge across 2G, 3G, 4G, and 5G technologies, including VoWiFi.
• Hands-on experience in network configuration tasks including OSPF configuration, IP pool management, OCS/DRA/PCRF integration, LAC barring, CSFB, SRVCC, APN creation, BSC/RNC migration, and TAI-DB management.
• Understanding of SS7 network architecture, along with GPRS, 3G, LTE/EPC, and VoLTE call flows, and basic RF network concepts related to GPRS.
• Knowledge of key Packet Core interfaces and protocols, including Gb, Gr, Gi, Gn, IuPS, Gx, Gy, Gz, S1, S6a, S11, SGs, S10, N7, N26, N40, N4, N11, N6 and related configuration and integration aspects.
• Understanding of Deep Packet Inspection (DPI) configurations and related service policies.
• Good understanding of service awareness and differentiated charging concepts within the packet core environment. Familiarity with latest Packet Core technologies and architectures, including CUPS (Control and User Plane Separation), F5 load balancing, Cloud -based deployments, 5G NSA, 5G SA, and VoWiFi.

The skills you bring:

• Qualifications: [Degree in Electronics and Communication Engineering]
• Total Experience: 4-8 years in Telecom Industry
• Relevant Experience: 3-5 yrs. (relevant to PACO)
• Technical and/or functional skills: [Network Nodes/5G SA/5G/NSA/LTE/Volte/VONR/OpenStack/OpenShift/GSM/GPRS/SS7/IN]
• The primary purpose is to take full responsibility of Technical Discussions / Self Initiator to Mentor peers for Competence Development / Process understanding and awareness / Audits awareness and follow ups / CR execution activities related to CORE Network.

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.

Primary country and city:

India (IN) || Noida