Job Description

Education: Bachelor’s Degree in EE/CS; Advanced degree is preferred

Bachelors is a must, advanced degree preferred


Years of Experience Required: Minimum of 5-7


Top Three Must Have Skills:  

  1. UE logs analysis, very familiar with analyzing UE to eNB/gNB messaging using QXDM/XCAL logs
  2. Good Technology (LTE/VoLTE/5G) understanding to  work independently in debugging field issue
  3. 4G/5G LTE Call Processing and in-depth knowledge of RRC, S1-MME, S1-U and X2 protocols


Preferred skills: 

•                       eNB logs analysis, KPI analysis,  clear communication as role needs customer interaction.

•                       Responsible for troubleshooting and issue resolution in Samsung 4G and 5G products to ensure all customer tickets are addressed in pre-defined SLAs.

•                       Responsible for end-to-end performance assurance to ensure company’s 4G and 5G products (DU, RU, CU and AU) are fully compliant with customer’s network design.

•                       Conduct trials and tune parameters to improve the overall network performance and propose optimized parameters and present to customer and other groups with detailed reports.

•                       Issue resolution in multi-vendor deployment across numerous interfaces, including Open CPRI (ORAN), S1-MME and S1-U IOT with incumbent EPC vendors.

•                       Evaluate the network performance by trending and analyzing key KPIs.

•                       Must have: 4G/5G LTE Call Processing and in-depth knowledge of RRC, S1-MME, S1-U and X2 protocols

•                       Must have: understanding of 3GPP systems - Core and RAN networks

•                       Need an understanding of overall Wireless systems with emphasis on PHY, MAC, RLC, RRC and PDCP layers

•                       Experience with protocol analyzers, test tools such as XCAL, QXDM, Wireshark, Channel Emulator, Spectrum Analyzers, and Signal Generators is beneficial

•                       Good to have: understanding of concepts such as Hybrid Beamforming, Massive MIMO, New Waveforms, LTE-NR interworking & co-existence, 5G Numerologies, etc.

More Details
Employment Type: Full Time
Location: Plano , Texas , United States
Experience Required: Mid-Senior Level
Date Published: 07 Jan 2022
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