Wireless Core Engineer

Texas  ‐ Onsite
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Description

Experience:

9-10 years of experience in handling Telco grade Wireless Networks (2G/3G/4G) with strong experience in IMS/RCS, Wireless Core and RAN Operations and Maintenance

Responsibilities & Previous experience:

  • End-to-End wireless call-flow analysis and troubleshooting (using different tracing tools to capture SIP, SDP, RTP, Diameter, TCP, UDP, XCAP and other IMS Protocols) to ensure that the call flows are compliant to 3GPP specifications.

  • VOIP Protocols Configuration, Feature Testing and Troubleshooting over Wireless domain of 2G/3G/4G

  • Performing functional, KPI and feature testing of 2G/3G/4G Services such as Voice, text, messaging, presence and etc.

  • IP tracing in a complex network & multi-protocol analysis

  • Testing & analyzing the service quality over various wireless networks such as GSM, UMTS and VOLTE, etc. and documenting clearly & accurately and escalating the discrepancies, anomalies or issues with the test case.

  • Protocol Specifications and Analysis testing of UMTS/LTE/IMS, RCSe, VoLTE, SR-VCC and CSFB. Design and validate new versions of software and features and supports the test of Inter-Operability Testing (IOT) scenarios

  • Assist the development, testing, and implementation of advance data core features such as LTE Mobility Management, Mobility Anchor Handoff, EPC Signaling and Control, Roaming Architecture/Design, and IPv4 and IPv6 Core Development.

  • Defining engineering and planning rules for 2G/3G/4G wireless networks. An understanding of 5G technologies

  • Understand DHCP, DNS services and general IP operations and configuration

  • Defining Subscriber Administration, UE and Database Configuration, Authentication and database policies

  • Software upgrade of 2G/3G/4G and IMS/RCS Network elements. Script creation and loading for IP connectivity & RF parameters

  • End-to-end 2G/3G/4G integration, call testing and Troubleshooting

  • Pre-Check & Post-Check audits before/after software upgrade

  • Strong working knowledge in RAN specifically RF Walk Test to perform and gather required data and analysis. Understanding of tools like Nemo/Windcatcher to gather RF Walk Test data

Start date
n.a
From
Iberica Telecom & Consulting S.A of C.V
Published at
10.10.2018
Project ID:
1646315
Contract type
Freelance
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