Job Description:
About Organization
The mission of Quality Assurance Platform Division is to deliver products and services with the highest standards of quality and reliability to Rakuten Mobile's commercial network. We prioritize customer satisfaction and contribute to the quality improvement and stable operation of Rakuten Mobile's commercial network through continuous improvement and innovation.
The mission of vRAN Test Section is to conduct thorough testing and validation to ensure the quality and reliability of the virtualized Radio Access Network (vRAN). We optimize the performance and stability of vRAN in Rakuten Mobile's commercial network, delivering the best communication experience to our customers.
Job Details
Test Planning: Create test plans for vRAN and design test cases.
Test Execution: Conduct actual tests and record and analyze the results.
Issue Identification and Resolution: Identify issues discovered during testing and propose and implement solutions.
Report Generation: Summarize test results and create reports.
Continuous Improvement: Continuously improve the testing process to enhance efficiency and effectiveness.
Stakeholders
Members of the vRAN Test Section, other sections within the Quality Assurance Platform Division.
Network equipment vendors, test equipment vendors, etc.
Subcontractors
English Usage Scenarios
Meetings: Use English in internal and external meetings with other departments and vendors.
Document Creation: Create documents such as test plans and reports in English.
Email Communication: Use English for email correspondence with internal and external stakeholders.
Minimum Qualifications
Over 5 years of experience in 5G/LTE system validation and testing, primarily in RAN in a lab environment
Knowledge of LTE protocols (RRC/PDCP/RLC/MAC/X2AP/S1AP) and/or 5G protocols (SDAP/PDCP/RLC/MAC/NGAP/XNAP)
Proficiency with tools such as QXDM, QCAT, Wireshark, Iperf, Signal Analyzer, and Channel Emulator
Understanding of LTE/5G features, connected mode scenarios, mobility scenarios, and Inter RAT
Strong skills in UE and/or eNodeB/gNodeB log analysis
Knowledge of IP, TCP, UDP, and infrastructure networks
Strong analytical and troubleshooting skills
Preferred Qualifications
Knowledge and experience with cloud platforms and Kubernetes
Understanding of Open RAN architecture and concepts
Experience in automation using scripting languages such as Python
Knowledge of NB-IoT and SON
Languages:
English (Overall - 3 - Advanced)