About The Position

JND is seeking a detail-oriented QA Engineer to perform quality assurance activities involving LTE and 5G field protocol testing and SIM OTA activation testing. The role develops and executes test strategies and plans, validates user equipment (UE) functionality on 4G/5G air interfaces and call-processing technologies, and ensures UE meets QA and carrier requirements. Work includes detailed analysis of 4G and 5G protocols and field testing mobile handsets on live networks. The position is based in Plano, Texas, with a mobile work environment: approximately 80% of the time is spent in a vehicle or in the field and 20% in the office. Travel is required 25% of the time. The role is full-time and hourly, paying $33–$34 per hour.

Requirements

  • Strong understanding of end-to-end LTE and 5G network architecture.
  • Strong knowledge of 4G and 5G air interfaces, call-processing technologies, and network architecture, especially the Radio Access Network (RAN).
  • Familiarity or expertise with UE log post-processing tools such as QXDM, QCAT, Wireshark, or ShannonDM, and a good understanding of OTA signaling messages.
  • Ability to analyze and debug IMS-related features, including registration, VoLTE/VoWiFi/ViLTE, conferencing, SMS/MMS, and RCS.
  • Previous experience post-processing UE logs and analyzing KPIs.
  • Previous LTE and 5G NR field-testing experience in live networks.
  • Good knowledge of and familiarity with 5G NSA and SA.
  • Previous test experience with SIM OTA activation.
  • Verbal and written communication, problem-solving, customer service, and interpersonal skills.
  • Ability to work independently, manage multiple tasks, and work in a fast-paced environment with minimal supervision.
  • Ability to work in a mobile environment and travel 25% of the time.

Responsibilities

  • Analyze customer requirements, translate them into system requirements, and capture detailed designs for the development team.
  • Assist with product and feature performance analysis and evaluate new product and software releases.
  • Analyze and troubleshoot issues reported from customer labs, field sites, and production networks.
  • Review UE performance and recommend improvements by evaluating and trending key performance indicators, performing trials, and providing optimization guidelines.
  • Set up test plans to meet deadlines based on requests from the project lead.
  • Determine risk items based on issues found during testing.
  • Perform LTE and 5G field protocol and SIM OTA activation testing.
  • Develop and execute test strategies and plans, and validate UE functionality against QA and carrier requirements.

Benefits

  • Medical insurance, including health, dental, and vision coverage.
  • H-1B or Green Card sponsorship for qualified employees.
  • Hands-on experience at global industry leader Samsung.
  • Opportunities for career advancement.
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