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Cellular Signaling Software Engineer

ID:  2096
Function:  Engineering

Deer Park, IL, US

Position Summary

As a Cellular Signaling Software Engineer you will work on 5G NR FR1 & FR2 Signaling protocols. Design and develop Cellular Software applications and test/integrate with the latest mobile devices. Ready to travel domestic and international 5% of the time. 

Position is based in Deer Park, Illinois.



Develop SW for LitePoint 5G Signaling products. Debugging eNB logs analysis, UE analysis, Core Network analysis. Responsible for end-to-end performance assurance to ensure company’s 4G and 5G products (DU, RU, CU and AU) are fully compliant with 3GPP requirements.



  • Bachelors or Master’s in computer science or Computer Engineering or Electrical Engineering.
  • Minimum 5 years’ experience in developing, debugging, integrating & testing 5G, LTE Protocol Stacks with expertise in Layers 1, 2 & 3.
  • Knowledge with using QXDM, QCAT with mobile devices preferred.
  • Debugging eNB logs analysis, UE analysis, Core Network analysis is needed.
  • Must have 4G/5G Call Processing experience with In- depth knowledge of RRC, S1-MME, S1-U, X2,     RLC, MAC protocols and understanding of concepts such as Hybrid Beamforming, Massive MIMO, New Waveforms, LTE-NR interworking & co-existence, 5G Numerologies etc.
  • Experienced and fluent with 3GPP RAN product architecture, familiar with RLC/MAC layer, different types of control channel and traffic channels, network access procedures, power control, handover algorithms, QoS types, TDD/FDD modes, HARQ/ARQ concepts, etc. Good understanding of scheduler functionality is beneficial.
  • Thorough understanding of 3GPP specification for LTE/LTE-A/5G features and Protocols, experience with ongoing 3GPP Rel-15/16 activities is beneficial.
  • Excellent verbal and written communication skills to communicate key technical concepts within organization and in customer meetings is preferred.

Must be able to work full-time in Deer Park, Ill office

Programming Skill set:

C, C++, Linux/Unix (CentOS, Ubuntu), Windows OS, Debugging tools.


Nearest Major Market: Chicago

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