Principal / Senior Engineer, Switch Planning Principal / Senior Engineer, Switch Planning …

M1 Limited
in Singapore
Permanent, Full time
Be the first to apply
M1 Limited
in Singapore
Permanent, Full time
Be the first to apply
Principal / Senior Engineer, Switch Planning
Job Responsibilities/Requirements:

Job Responsibilities:
  • Participate in drafting of the technical specification in a tender.
  • Planning and Designing of the network
  • Life Cycle of the Software Management (i.e. software quality).
  • Implementation of projects
  • End to end testing of VoLTE or Fixed IMS network integration with Enterprise networks.The task requires IP tracing in a complex network and multi-protocol analysis
  • To understand customer requirements and realise it as technical requirements and implement it in the network
  • Conduct analysis of proper call flow requests, responses and/or updates using Tracing tools to capture SIP, TCP, UDP and other LTE-EPC and IMS Protocols
  • Conduct analysis of Telephony voice services to include call waiting, call barring, 3-way calling, etc.
  • Analyse the proper operation with PSTN (landline) and PLMN (mobile networks)
  • Verify proper operation of handsets in providing the Voice Services
  • Type approval of new interfaces, protocols and inter-working with 3 rd party system or new systems
  • Design and implement tools and applications to facilitate testing and workflow improvement

Job Requirements:
  • Degree/Masters in Engineering or Computer Science
  • Minimum 5 years' relevant experience in the following aspects:
  1. Mobility, LTE, Wireless Mobility Network Experience Domain and IMS architecture
  2. SIP protocol and IMS based services
  3. Protocol Specifications and Analysis
  4. SS7 tracing, ability to discuss, identify and name the nodes in a typical SIP call flow and the nodes in an IMS/Application Server platforms and the function of each note.This includes validation with architects to ensure the correct call flow, clearly and accurately document and discuss the discrepancies, anomalies or issues with the test case
  5. Packet Analysis for VoLTE (or VOIP) Protocols Wireless domain of LTE, 3G, 3G+PacketCore, /UMTS/LTE
  6. Analyze inter- operation with 3,4, and 5 networks For example handover between any of the applicable network types
  7. LTE, UMTS and GSM/GPRS Call flows
  8. Network topology & various interfaces
  9. Protocol testing of UMTS/LTE
  10. Understanding of call processes between End to End system testing
  11. Configuration, Feature Testing, Troubleshooting

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