Senior Customer Success Manager

Date PostedJune 19, 2026LocationTokyo, JapanCompanyProject Search Pte. Ltd.SalaryJPY 10000K - JPY 14000KTypeexecutive - manager (sales/marketing) it (embedded software, control systems) - project manager it (other) - customer support engineer

Job Summary

As a Customer Success Manager, you will act as a strategic partner to drive the adoption and expansion of data utilization and DX for enterprise clients. You will lead projects through direct negotiation with CxO-level executives to achieve long-term value creation. This role goes beyond standard operational support, focusing on business outcomes and strategic consulting.

Responsibilities

  • Design and execute client business success plans
  • Maximize revenue through renewals and upsells
  • Engage with CxO-level stakeholders
  • Drive data adoption and business transformation

Required Skills

  • B2B SaaS or IT domain experience
  • Enterprise account management
  • Strategic consulting and proposal presentation
  • Stakeholder management
  • Native Japanese and Business English

Job Details

As a Customer Success Manager, you will lead the success of enterprise customers and contribute to business growth through long-term value creation. Rather than offering simple operational support, you will act as a strategic partner to drive the adoption and expansion of data utilization and DX based on the client’s management challenges and business objectives. Key Responsibilities & Mission: - Design and execute success plans aimed at achieving clients’ business KPIs. - Maximize revenue through contract renewals and upsells. - Establish long-term partnerships by building relationships with CxOs and department heads. - Maximize customer value by driving company-wide data adoption and business process transformation. Core Duties: - Formulate and execute customer success strategies for assigned accounts (primarily enterprise). - Develop success plans and manage progress based on customer goals and KPIs. - Conduct regular business reviews (QBR, MBR, etc.) and demonstrate product value. - Promote product utilization (including onboarding and usage expansion support). - Identify and propose upsell and cross-sell opportunities. - Collaborate with Technical Support, Sales, Solution Engineers, and other internal teams. - Gather customer feedback and contribute to product optimization. Job Requirements: - Proven experience in customer success, account management, or consulting within the B2B SaaS or IT domain. - Demonstrated experience formulating and presenting proposals to clear up and resolve customer challenges. - Experience driving projects that involve managing multiple stakeholders. Preferred Skills & Experience: - Experience managing enterprise-class clients. - Foundational knowledge regarding data, AI, or cloud solutions. - A track record of achieving contract renewals and upsells.