The Job

Modem System Test Engineer, 6G/5G Air Interface

Technology, Data & Digital · Software & Web Development · Software Engineering

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In short

Qualcomm is hiring a Modem System Test Engineer in Tokyo to work on 6G/5G modem innovations. This role involves testing and evaluating complex digital modem products, collaborating with cross-functional teams, and ensuring the quality and performance of global modem products.

Responsibilities

  • Support verification and performance evaluation for 6G and 5G modem products in carrier labs, infra vendor labs, and in the field.
  • Validate end-to-end system functionality and performance across the cellular protocol stack (PHY, MAC/RLC/PDCP, RRC, NAS, TCP/IP).
  • Define modem key performance indicators and evaluate system performance, optimizing based on test data.
  • Develop and execute system-level test strategies, methodologies, and test plans.
  • Analyze 3GPP specifications and carrier requirements to create validation scenarios.
  • Perform log analysis, debugging, and root cause investigation of modem issues.
  • Support feature integration, certification, and commercialization of wireless products.

Requirements

  • 3+ years of System Test Engineering experience in 5G/4G mobile communications system, protocols, or related work experience.
  • Bachelor's degree in Engineering, Information Systems, Computer Science, or related field.
  • Speaking Japanese and English is required at operator lab.

Desired Qualifications

  • Strong understanding of digital and wireless communication systems, signal processing, and RF propagation.
  • Strong understanding of physical layer procedures such as signal detection, channel estimation, link adaptation, mmWave beam refinement, and massive MIMO.
  • Knowledge of 5G NR PHY, MAC, RLC, PDCP, and RRC protocols.
  • Knowledge of OFDMA, Wi-Fi, and LTE.
  • Knowledge of air interface performance analysis, characterization, and optimization.
  • Experience with test equipment such as protocol simulator call boxes and channel emulators.
  • Programming skills in Python, Perl and MATLAB.
  • Knowledge of AI/ML concepts and their application to digital communications is a plus.
  • Proficient communication and reporting skills.

Benefits

  • Contribute to building next-generation wireless technologies including 5G NR and emerging 6G systems.
  • Opportunities to apply AI/ML techniques to end products and engineering workflows.
  • Directly impact the quality, performance, and commercialization of global modem products.
  • Enable cutting-edge wireless experiences across mobile devices and networks.
  • Work in a collaborative technical environment.
#6G#5G#Modem#System Test#Air Interface#Wireless#Connectivity#Mobile
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Company

Qualcomm

Job Posted

1 month ago

Employment Type

Full Time

WorkMode

On Site

Experience Level

Mid-Senior

Locations

Tokyo, Japan

Qualification

Bachelor

Applicants

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