Voice & Video Quality Expert, Voice & Video Quality Section -National Performance & Analysis Department (RM E2E Performance & Capacity Div)

5日前

Tokyo Rakuten Mobile Full time

Description

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About Organization

E2E Performance & Capacity Division is responsible for ensuring Rakuten Mobile network End-to-End performance and/or capacity KPI are achieving the targets, providing the best customer experience, filing business requirement and align with Network Functions/Applications owners.

Job duties

As a Voice & Video Quality Expert, your responsibilities will include:

  • Interfacing with product teams to define the roadmap and lead trials for new features and enhancements for voice and video services.
  • Utilizing your technical knowledge to extract information from different data sources and ensure the solid performance status of the network.
  • Collecting information from various data sources, including crowdsourcing tools, and analyzing the data to ensure a solid performance status and user experience.
  • Taking ownership of network KPIs and identifying opportunities for enhancements, with a focus on improving voice and video quality.
  • Having end-to-end troubleshooting capabilities to lead joint discussions and investigations.
  • Initiating initiatives to enhance key performance indicators related to network quality.
  • Creating daily, weekly, and monthly reports on network performance status.
  • Creating executive dashboards to present to management.
  • Collaborating closely with product teams and engineering to drive necessary enhancements and assess new releases/features.
  • Assessing new features and major activities from a performance point of view and evaluating their impact on KPIs.
  • Demonstrating quantitative and qualitative analysis skills to address complex issues and make informed decisions and escalations.
  • Serving as a role model to team members in terms of ownership, proactivity, and taking responsibility.

    • Minimum Qualification

    ・Bachelor's Degree (BS) in Engineering or a related field
    ・8+ years of experience in telecommunications
    ・Knowledge of voice and video technologies
    ・Experience in data analysis
    ・Basic knowledge of statistics
    ・Knowledge of databases (SQL, bigQuery)
    ・Strong MS Excel skills for statistical analysis
    ・Solid technical knowledge of 4G and 5G network architectures
    ・Experience with network traces and log analysis
    ・Solid knowledge of tracing and log file analysis using different tools such as ・Wireshark and Radcom
    ・End-to-end experience and background will be given priority
    ・Excellent presentation skills, both verbal and in PPT format, to report to high-level management
    ・Knowledge and skills in HTTP/S, SIP, Diameter, RTP, RTCP, TCP, and UDP
    ・Experience in network quality KPIs (MOS, packet-loss, jitter, etc.) and performance tracking and analysis
    ・Strong experience in using passive probing tools for troubleshooting and insights analysis and reporting
    ・Strong verbal and written communication skills
    ・Strong analytical and problem-solving skills

    Preferred Qualification

    ・Programming experience, particularly in Python, but not limited to it
    ・Experience working on multiple products/projects in parallel, demonstrating the ability to manage and prioritize tasks effectively

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