Support Engineer - Core Network

Ericsson · Chennai

  • Experience5–6 yrs
  • SalaryNot disclosed
  • Work modeonsite
  • Posted30 Sept 2026
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About Ericsson

Ericsson is hiring in Chennai in telecom. This role looks for around 5+ years of experience.

Skills

  • IMS
  • 4G/5G infrastructure
  • VoLTE
  • VoWiFi
  • 4G EPC
  • 5G Packet Core
  • UDM
  • TCP/IP
  • Docker
  • Kubernetes
  • 3GPP specifications
  • VoLTE/VoNR/EPSFB procedures
  • Incident management
  • Problem management
  • Change management
  • Root cause analysis

The role

A network support engineer at a telecommunications company monitors IMS infrastructure and troubleshoots 4G/5G infrastructure, IMS, and cloud networks. The role also applies TCP/IP and Docker/K8s to maintain resilient live-network services.

Full job description

Join our Team

About the Opportunity:

We are seeking a skilled Senior Support Engineer in the domain of 4G/5G IMS Domain to provide support to network function monitoring, customer reported problems according to established processes and contracted SLA. With experience more operational and technical issue handling for dedicated customers, solutions or domains becomes part of the work. The individual may also be involved in project delivery as part of the job role which will involve system integration, testing and upgrades.

What you will do:

Act as the main support interface for the Customer across IMS domain for monitoring and maintaining IMS NodesProvide support and lead team for incident, problem, and change management activities, support monitoring during cloud infra upgrades and baby sit post IMS nodes upgrades.Collaborate with global competence domain teams and be the interface towards customer.Ensure high availability, resiliency, and performance optimization of deployed solutionsParticipate in 24x7 emergency support if necessary

The skills you bring:

Education: Bachelor’s (Btech or equivalent ) in engineering field.Domain Experience: 5 yrs of experience, Background in IT or Telecom operations; interest in cloud networks and 4G/5G infrastructure within production support contexts. IMS (VoLTE/VoWiFi) installation, integration and troubleshooting. Additional competence in 4G EPC (MME, SGW, PGW), 5G Packet Core & UDM is goodStrong expertise in Core Products and Cloud native based telecom architecturesGood customer management and communication skillsUnderstanding of 4G/5G call flows and 3GPP specifications.Troubleshooting experience of the issues faced by customer in live network.Knowledge on E-2-E call flows for VoLTE/VoNR/EPSFB proceduresWorking knowledge of Networking (TCP/IP) and Cloud/Container platforms (Docker/K8s) from an operations perspective.Experience with Ericsson CEE,CCD/CNIS platform is desirable.Operational Mindset: Solid troubleshooting methodology, incident prioritization, and RCA documentation; comfort with on‑call emergency rotation.Soft Skills: Strong communication in English, proactive team player, customer‑focused, and committed to quality and reliability.

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