Job Description: About Organization Our department drives customer and technology transformation through digitalization, AI, and data-driven Customer Value Management (CVM) platforms. We enable personalized customer experiences and accelerate acquisition, retention, win-back, ecosystem cross/up-selling, and operational excellence across retail, web, marketing, and customer support channels. Job Duties As a core member of the Business Strategy team, you will own the end-to-end lifecycle of new business initiatives, acting as a strategic leader from ideation to execution. New Business Ideation & Opportunity Discovery: Proactively scan global telco, tech, and adjacent market landscapes to identify high-potential opportunities aligned with Rakuten Mobile’s strategic priorities. Develop structured hypotheses and opportunity briefs, synthesizing market signals, competitive intelligence, and ecosystem synergies into actionable concepts. Lead ideation workshops with internal stakeholders and senior leadership to move concepts into a prioritized initiative pipeline. Market & Competitive Intelligence: Conduct rigorous market sizing (TAM/SAM/SOM), segmentation, and competitive landscaping (Porter’s Five Forces, PESTLE). Benchmark Rakuten Mobile’s positioning against global telcos (e.g., KDDI, SoftBank, SK Telecom, T-Mobile) and tech platform companies (e.g., Alphabet, Amazon). Track innovation in IoT, cloud, AI, and 5G monetization strategies to unlock new revenue streams. Business Case Development & Financial Modelling: Develop board-ready business cases, including commercial model design, financial projections (EBITDA, NPV, IRR), risk assessment, and go/no-go frameworks. Stress-test commercial models under multiple scenarios to ensure alignment with market needs and revenue targets. Partnership Identification, Structuring & Negotiation Support: Identify and cultivate relationships with prospective partners across target verticals. Structure innovative commercial contracts, partnership governance models, and product/service strategies. Manage the deal funnel from initial outreach through due diligence to final launch. End-to-End Project Delivery & Execution: Own the full initiative lifecycle, acting as project lead across internal functions and external partners. Define KPIs and feedback loops post-launch to refine and optimize business performance. Apply structured project management disciplines (milestone planning, RACI frameworks) to drive initiatives from strategy to revenue-generating reality. Strategic Presentations & Executive Communication: Develop insight-led strategy documents and high-impact presentations for senior leadership. Facilitate executive workshops to drive alignment on strategic direction and commercial decision-making. Cross-Functional Collaboration & Internal Influence: Serve as the primary strategy interface for key stakeholders, building coalitions to support cross-departmental resource commitments. Mentor junior analysts, fostering a culture of analytical rigor and structured problem-solving. Minimum Qualifications 5–8 years of progressive professional experience, with a strong preference for candidates combining strategy consulting with industry experience. Strategy consulting experience at a top-tier firm or equivalent in-house strategy/corporate development experience at a leading telco or tech company. Demonstrated track record of leading new business, growth strategy, or partnership development initiatives from ideation through execution. Hands-on experience building financial models and business cases for new ventures or partnerships. Proven ability to manage multiple concurrent workstreams in a fast-paced, ambiguous environment. Experience using AI as a tool to fulfill business objectives. Preferred Qualifications Experience within the telecommunications, technology, media, or adjacent digital industry. Exposure to one or more of the following verticals: IoT, AI/ML products, OTT/content, AdTech, connected devices, or data monetization. Experience in the Japanese market or broader APAC region. Background in venture building, corporate innovation, or business incubation. Fluency in Japanese. Languages: English (Overall - 3 - Advanced), Japanese (Overall - 2 - Intermediate) Looking for members to join our mobile phone business “They cannot succeed if they step into the field at this late date” Some people say Rakuten is reckless in trying to enter the mobile communications business. However, innovation is realized if we succeed when something seems impossible. At Rakuten, we think the world changes when we achieve such changes. Because our history has always been a series of innovations since our establishment. Launching a communication carrier is an opportunity that we have once in our lives. Crack open the current communication industry. Blow new wind into life. Why not create innovation with us? Why not do something big? Job Opening: Regular Employee Company Name Rakuten Mobile, Inc. Qualifications [Required] TOEIC score of 600 or equivalent English proficiency/skills. Rakuten Group Englishnization Rakuten Mobile, Inc. aims for all employees to achieve a TOEIC score of 800 or higher, in line with Rakuten Group, Inc.'s Englishnization policy. As a first step, a TOEIC score of 600 (or equivalent English proficiency) is required for mid-career hires. Job Responsibilities [Upon initial hiring] Varies depending on the position. The scope of work changes may include assignments to other duties determined by the company based on directives, etc. (If a transfer is ordered in accordance with the secondment regulations, the duties will be those of the seconded company.) Contract Period No fixed term Probationary Period Yes (3 months) The probationary period may be extended at the company's discretion. Employment conditions will not change during the probationary period. Work Location [Upon initial hiring] Headquarters (Rakuten Crimson House, 1-14-1 Tamagawa, Setagaya-ku, Tokyo), and other business sites. The scope of work location changes may include reassignments or transfers to locations nationwide and overseas. If remote work is partially permitted, the work location will be the remote work location approved by the company. The work location at the time of hiring will be communicated in the job description for each position and the offer letter. As a measure against passive smoking, smoking is prohibited on the premises of Rakuten Crimson House (however, this may vary depending on the business site). Working Hours Standard working hours: 9:00 AM - 5:30 PM On days when Rakuten Group morning meetings are held, the prescribed working hours will be 8:00 AM - 4:30 PM. Prescribed working hours are 7.5 hours, with a 1-hour break. A flextime system is partially applied. Core time: 11:00 AM - 3:00 PM (8:00 AM - 12:00 PM on morning meeting days) Some positions may differ from the above; details will be specified in the offer letter (e.g., application of discretionary labor system). Overtime work or work on holidays may be instructed. Holidays/Leave/Absence Complete two-day weekend system (Saturday and Sunday) and national holidays Summer vacation, New Year's holiday, annual paid leave, menstrual leave, special leave (condolence, volunteer, etc.) Maternity leave, childcare leave, family care leave Some positions may differ from the above; details will be specified in the offer letter. Salary Monthly salary: JPY300,000 ~ (Breakdown: Base salary JPY 227,848 + fixed overtime pay for 40 hours JPY 72,152) The above is the minimum salary offered for mid-career hires. Overtime work exceeding 40 hours per month will be paid separately as overtime allowance. Some positions may differ from the above; details will be specified in the offer letter (e.g., application of discretionary labor system). Commuting allowance will be provided (conditions and maximum amount apply). Salary Increase Yes Reviewed in January and July based on company performance and individual evaluation. Bonus Yes Paid in June and December based on company performance and individual evaluation. Stock Option Plan Yes Retirement Allowance Yes Insurance Employees' Pension Insurance, Health Insurance, Workers' Accident Compensation Insurance, Employment Insurance, etc. Benefits Cafeteria (breakfast, lunch, dinner generally free) Employee Stock Ownership Plan English learning support, etc. Job Opening: Fixed-term Employee Company Name Rakuten Mobile, Inc. Qualifications Varies depending on the recruiting position. Job Responsibilities [Upon initial hiring] Varies depending on the recruiting position. The scope of work changes may include assignments to other duties determined by the company based on directives, etc. (If a transfer is ordered in accordance with the secondment regulations, the duties will be those of the seconded company.) Contract Period Fixed term Maximum contract renewal period: Yes (The total contract period is 5 years, starting from the initial employment contract date.) Probationary Period None Work Location [Upon initial hiring] Headquarters (Rakuten Crimson House, 1-14-1 Tamagawa, Setagaya-ku, Tokyo), and other business sites. The scope of work location changes may include reassignments or transfers to locations nationwide and overseas. If remote work is partially permitted, the work location will be the remote work location approved by the company. The work location at the time of hiring will be communicated in the job description for each position and the offer letter. As a measure against passive smoking, smoking is prohibited on the premises of Rakuten Crimson House (however, this may vary depending on the business site). Working Hours Standard working hours: 9:00 AM - 5:30 PM On days when Rakuten Group morning meetings are held, the prescribed working hours will be 8:00 AM - 4:30 PM. Prescribed working hours are 7.5 hours, with a 1-hour break. A flextime system is partially applied. Core time: 11:00 AM - 3:00 PM (8:00 AM - 12:00 PM on morning meeting days) Some positions may differ from the above; details will be specified in the offer letter (e.g., application of discretionary labor system). Overtime work or work on holidays may be instructed. Holidays/Leave/Absence Complete two-day weekend system (Saturday and Sunday) and national holidays Summer vacation, New Year's holiday, annual paid leave, menstrual leave, special leave (condolence, volunteer, etc.) Maternity leave, childcare leave, family care leave Some positions may differ from the above; details will be specified in the offer letter. Salary Determined individually based on experience, etc. Commuting allowance will be provided (conditions and maximum amount apply). Salary Increase Yes Upon contract renewal, a salary revision may be proposed based on the most recent evaluation. Bonus May be paid taking into account company performance, general economic conditions, and work performance/abilities. Stock Option Plan None Retirement Allowance None Insurance Employees' Pension Insurance, Health Insurance, Workers' Accident Compensation Insurance, Employment Insurance, etc. Benefits Cafeteria (breakfast, lunch, dinner generally free) Employee Stock Ownership Plan English learning support, etc.

Strategist (RMI Strategy & Data Dep).

more at Rakuten.

モバイルネットワーク本部：技術企画担当 (RMI ネットワーク統括本部)

エンタープライズ&インテグレーション課　GC構築グループ：ネットワークエンジニア (RMI 伝送ネットワーク技術部)

Senior Engineer - 5G Cloud (RMI Core Network Operations Dep)

similar roles.

Customer Support Specialist

Director, Business Intelligence Team

Senior AI Solutions Engineer

AI Unity Tools Engineer

Sr. Manager Data Science

AI Engineer-SAP S/4 HANA & Joule