Packet Core Engineer

1 month ago


United Kingdom ECS Resource Group Full time

ECS Resource Group are currently working in partnership with a global managed service provider who's end client is in the Mobile Telecoms sector. We are assisting them with the search for a Packet Core Engineer on a contract basis.


Job Description:

We are seeking a skilled Packet Core Engineer with expertise in EPC/LTE architecture and a strong understanding of call flows and integration processes. As a Packet Core Engineer, you will play a crucial role in configuring and integrating Ericsson & Cisco MME, PGW, and SGW to ensure seamless network operations.


Key skills and responsibilities should include some of the following:

  • Service Provisioning: Handle IPV4 to IPV6 migration for APNs, configure all APN-related settings in DNS, PGW-C, and PGW-U, and design and integrate IP within the packet core components.
  • Architecture Knowledge: Demonstrate proficiency in EPC/LTE packet core architecture, including MME, SGW, PGW, HSS, and associated interfaces such as Diameter and Radius.
  • Call Flow Understanding: Possess in-depth knowledge of call flows, including Authentication, Attach, PDU Session, Handover, etc., to troubleshoot and optimize network performance.
  • Integration Expertise: Configure and integrate Ericsson & Cisco MME, PGW, and SGW to ensure smooth network operations.
  • Messaging Services: Oversee messaging services, including MMS and SMS over NAS & IP, to guarantee efficient communication within the network.
  • VoWiFi Deployment: Deploy Voice over WiFi (VoWiFi) services using ePDG for improved voice communication over wireless networks.
  • 5G Stand Alone Core Expertise: Understand 5G Core SBA architecture, including AMF, SMF, UPF, and associated interfaces, and manage 5G converged charging (N40) and IRAT mobility between 5G and 4G networks.
  • Testing and Automation: Develop test plans, execute tests, capture and analyse traces, and implement test automation procedures to ensure network reliability and performance.


Further job details available upon request


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