IMS Engineer

IMS Engineer

Key Responsibilities:

• Perform

  Fault Management and Configuration

  activities for the CS Core Network (VoLTE & SDM).
• Coordinate closely with Project teams for

  HLD/LLD (High-Level Design/Low-Level Design)/TOL (Technical Offer Letter)/Design reviews

  .
• Provide hands-on coordination with project teams for all

  network integration activities

  .
• Handle

  Trouble Tickets (TT)

  and

  Change Requests (CR)

  diligently, ensuring resolution within defined SLAs.
• Manage

  customer issues

  effectively, ensuring that end-customer services are maintained with minimal disruption.
• Prepare

  MOPs (Method of Procedures)/WIs (Work Instructions)

  for all network activities and document new learnings.
• Prepare, implement, and verify the configuration and integration of a Node / System within the IMS and CS Core domains.
• Coordinate with the care team for finding and analyzing

  RCAs (Root Cause Analysis)

  of complex issues.
• Guide team members to execute complex and critical configuration changes accurately and safely.
• Track issues related to tools and ensure timely escalation as per the pre-defined matrix.
• Attend governance calls with region and internal teams. Responsible for analyzing and implementing feedback received from customers.

Key Technical Skillset:

• Relevant technical experience on

  Ericsson IMS & CS Core Domain (3G/4G/5G Core Nodes such as CSCF, SBG, MTAS, IP Works, EMM, MSS, MGW, etc.)

  or

  SDM Domain (HLR, HSS, UDM, AUSF, MMTEL etc.)

  .
• Knowledge of

  Cloud Native Architecture

  and experience on

  Microservices, Kubernetes, Dockers, and Containers

  .
• Excellent knowledge of

  Core IMS Architecture, Interfaces, and Protocols

  .
• Must have hands-on experience on

  LTE/VoLTE and SDM E2E call flows

  .
• Good exposure in

  IMS architecture with all its nodes

  .
• Good understanding of

  Service Based Architecture concepts and Network Slicing

  .
• In-depth knowledge of

  5G / LTE call flows

  including Registration, Re-Registration, De-Registration, VoLTE Call, Break-in / Break-Out, Hand-over, and roaming etc.

• Technology:

  CS Core & SDM