Tokyo Rakuten Mobile, Inc. Full time

Job Description:

About Organization

Our department is responsible for the development of various devices provided to our customers, including smartphones, mobile routers, and IoT devices.

As a Device Technology Lead, you will work closely with device vendors, chipset vendors, and OS vendors. Your primary responsibilities will include examining device technology roadmaps and defining/specifying device requirements, with a particular focus on connectivity/SIM technologies (e.g., Wi-Fi, Bluetooth, NFC, UWB, IoT communication protocols, GSMA).

Job Duties

  • Connectivity Technology Roadmap Formulation: Research and analyze the latest standard trends in Wi-Fi, Bluetooth, UWB, 5G, etc., and formulate a technology roadmap aligned with Rakuten's service strategy.

  • Protocol Implementation and Optimization: Responsible for protocol stack implementation, performance tuning, and power consumption optimization for various connectivity technologies.

  • Interoperability Verification: Lead compatibility testing between devices and chipsets from different vendors, and manage certification acquisition from standardization organizations (e.g., Wi-Fi Alliance, Bluetooth SIG).

  • Rakuten SIM Profile Creation and Verification: Responsible for creating and verifying the Rakuten SIM Profile.

Related Parties

Relevant Team in Network Division, Device Development, Cloud Platform, QA, Standardization Promotion etc.

Minimum Qualifications

・Practical experience (3+ years) with multiple wireless communication standards such as Wi-Fi a/b/g/n/ac/ax/be), Bluetooth (Classic/LE), NFC, UWB, etc.
・Deep understanding of network protocols including TCP/IP, UDP, HTTP/HTTPS, MQTT,SIM prfofile etc.
・Experience in protocol stack development or firmware development using C/C++, Python, etc.
・Experience in network development and debugging in Linux environments

・Language: English- Business level

Preferred Qualifications

・Development and implementation experience with latest communication standards such as 5G NR, LTE, Wi-Fi 6E/7, etc.
・Experience collaborating with chipset vendors (Qualcomm, MediaTek, Broadcom, etc.)
・Experience participating in standardization activities of Wi-Fi Alliance, Bluetooth SIG, 3GPP, etc.
・Basic knowledge of RF design and antenna design
・Development experience with IoT devices, smart home, connected cars, etc.
・Advanced skills in packet analysis using Wireshark, tcpdump, etc.
・Development experience with embedded Linux, RTOS (FreeRTOS, Zephyr, etc.)
・Knowledge about eSIM profile

Languages:

English (Overall - 3 - Advanced)

  • Tokyo Rakuten Mobile, Inc. Full time¥2,000,000 - ¥2,800,000 per year

    This is a summary of the job description. · Examine device technology roadmaps and define/specify device requirements. · Formulate a technology roadmap aligned with Rakuten's service strategy. · Responsible for protocol stack implementation, performance tuning, and power consumpt ...


  • Tokyo Rakuten Mobile, Inc. Full time¥2,000,000 - ¥2,800,000 per year

    This role will oversee the development of various devices provided to customers, including smartphones, mobile routers, and IoT products. The Device Technology Lead will work closely with device vendors and chipset vendors to define/specify device requirements. · ...


  • Tokyo Rakuten Mobile, Inc. Full time¥1,000,000 - ¥1,200,000 per year

    The Device Test Engineer will execute Device Verification System Development and Device Validation under tight collaboration with device vendors, · chipset vendors, internal NW teams and external NW vendors. · ...


  • Tokyo Rakuten Mobile, Inc. Full time¥2,000,000 - ¥2,800,000 per year


  • Tokyo Rakuten ¥4,000,000 - ¥8,000,000 per year

    The Group Sales Division leads brand, creative, marketing, and membership as a cross-group organization with a mission to expand Rakuten Group's membership value and ecosystem of over 70 services. · We believe that the mobile domain is a platform that plays a fundamental role in ...


  • Tokyo Rakuten

    The Rakuten Group's Procurement Operations Department is responsible for overall procurement operations across Rakuten Group. · ...


  • Tokyo TELEXISTENCE Full time¥7,000,000 - ¥10,000,000

    We are seeking a highly skilled Software Engineer with experience in C#/.NET and embedded systems edge computing IoT devices Linux ARM64 preferred. · ...


  • Tokyo Woven by Toyota ¥4,000,000 - ¥6,500,000 per year

    We are seeking highly motivated · energetic exceptional engineers to join our team.In this role you will apply your expertise in software development · and cloud-based platforms along with your knowledge of backend development · and system design skills. · Create edge software f ...

  • Product Manager

    3週間前


    Tokyo Barrington James ¥1,000,000 - ¥1,500,000 per year

    We are seeking a Product Manager to lead the full product lifecycle for energy-based aesthetic devices. · Lead the full product lifecycle for energy-based aesthetic devices, from concept evaluation and regulatory planning to launch and post-launch optimization. · Develop product ...


  • Tokyo Sky Systems, Inc. (SkySys) ¥420,000 - ¥720,000 per year

    The L2 Field Service Engineer will provide on-site technical support troubleshooting maintenance for IT systems end-user devices.This role is ideal for candidates starting their technology career or those with 2-5 years of experience in IT support field services. · ...


  • Tokyo Woven by Toyota ¥4,000,000 - ¥5,200,000 per year

    We are looking for a skilled and self-motivated embedded software engineer to join us in building the next generation of smart infrastructure at the core of the Smart Logistics products and services using cutting-edge technologies. · Design, develop, maintain, and deploy high qua ...


  • Tokyo Rakuten ¥900,000 - ¥1,200,000 per year

    The Technology Management Division (TMD) provides Corporate IT, and Cyber Security & Privacy Governance to Rakuten Group companies and essential business management for technology organizations, thereby enabling innovation and strengthening the technology foundation. · Manage and ...


  • Tokyo Google Full time¥2,450,000 - ¥3,650,000 per year

    +Job summary+: Google's software engineers develop the next-generation technologies that change how billions of users connect explore and interact with information and one another.+Responsibilities:+ Make networking faster by using better integration between high-level protocols ...


  • Tokyo Rakuten ¥1,500,000 - ¥2,500,000 per year

    +The main tasks involve conducting interviews and defining requirements for mobile device utilization services. · +Interview corporate customers to understand current challenges and needs regarding mobile device utilization · +Experience in proposing IT solutions for corporations ...


  • Tokyo Rakuten Full time¥3,500,000 - ¥6,500,000 per year

    +Job Summary · The main tasks involve conducting interviews and defining requirements for mobile device utilization services for corporate clients. · +Interview corporate customers to understand current challenges and needs regarding mobile device utilization. · Detailed understa ...


  • Tokyo A&O IT Group ¥400,000 - ¥800,000 per year

    Join our global team of over 1,000 engineer support heroes, and work with some of the world's leading brands, from high-street giants to energy multinationals and financial institutions. · Not only will you be working alongside a highly experienced and dedicated project team, but ...


  • Tokyo NEO Search Partners Inc. ¥4,500,000 - ¥9,000,000 per year

    This team brings together experts in cloud, AI, data, security, and multi-cloud engineering to build internal platforms that power audit, tax, and advisory businesses and enable digital transformation. · Lead end-user IT services with a strong focus on Mac environments (deployme ...


  • Tokyo Back Market

    We are looking for a Senior iOS Engineer to join our Japan Growth team. · We have exciting ambitions and features to bring to our users in our mobile app for the upcoming years.The role will involve collaborating with local teams (operations, marketing, product, design) and imple ...


  • Tokyo Amazon ¥500,000 - ¥1,500,000 per year

    We are looking for a senior leader, based in Tokyo, to manage all aspects of our Amazon Devices business in Japan. As the Amazon Devices JP Leader, you will be responsible for all sales/marketing activities, including building awareness for our device brands.The ideal candidate w ...


  • Tokyo Google ¥8,000,000 - ¥12,000,000 per year

    Job summary:The team maintains all Android networking code that includes routing, firewalls and virtual private networks (VPNs), data usage(connectivity application programming interfaces (APIs), Domain Name System (DNS), etc. · ...

  • System Engineer

    2ヶ月前


    Tokyo Beyondsoft ¥900,000 - ¥1,200,000 per year

    We are looking for an experienced Intune Engineer to join our team in Tokyo in a hybrid position. The role will focus on managing, configuring, and securing devices across Windows, iOS, and Android platforms through Microsoft Intune. The ideal candidate will have hands-on experie ...