Job Description

The candidate required to work at Tokyo or Osaka, Japan.

Client Overview

Our client is a globally recognized management consulting and technology consulting firm specializing in advanced analytics, decision science, AI-driven business transformation, and enterprise consulting solutions. Established in the United States, the organization operates across more than 40 international offices with a workforce exceeding 15,000 professionals worldwide, supporting clients in over 170 countries.

The company helps organizations transform complex datasets into strategic business insights by integrating data science, statistical modeling, AI technologies, and management consulting expertise. Its consulting capabilities span industries including healthcare, financial services, consumer goods, hospitality, and technology, while supporting enterprise-scale transformation initiatives, operational optimization, and commercial growth strategies.

Job Role

The Decision Analysis Assistant is a highly analytical and client-facing consulting position responsible for solving complex business challenges through advanced statistical analysis, predictive modeling, and quantitative consulting methodologies. The role combines hands-on analytical execution with stakeholder communication, project coordination, and business consulting activities across multinational client environments.

Working within a fast-paced consulting ecosystem, the successful candidate will transform large-scale datasets into actionable business recommendations using advanced analytics tools and decision science frameworks. This position is designed for professionals seeking long-term growth within a global analytics-driven consulting organization while building expertise in data strategy, client advisory, and business transformation.

Key Responsibilities

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  Develop statistical models, analytical frameworks, and quantitative solutions to support complex business decision-making.
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  Build customized analytics solutions using R, Tableau, SAS, Visual Basic, Excel, and related analytical platforms.
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  Analyze large datasets and deliver actionable insights, executive reports, and strategic business recommendations.
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  Coordinate project timelines, stakeholder communication, reporting updates, and consulting deliverables.
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  Collaborate with cross-functional consulting teams to implement analytics-driven business solutions.
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  Support predictive analytics initiatives, business intelligence projects, and decision science modeling activities.
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  Translate complex quantitative findings into clear business language for executive stakeholders and clients.
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  Participate in client-facing discussions, workshops, and strategic consulting engagements.
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  Contribute to the enhancement of consulting methodologies, reporting frameworks, and analytical best practices.
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  Support enterprise transformation projects through data-driven operational and commercial insights.

Requirements

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  Bachelor's or Master's Degree in Data Science, Statistics, Econometrics, Applied Mathematics, Engineering, Operations Research, Management Science, or related quantitative disciplines.
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  Minimum 4 years of relevant experience in analytics consulting, decision analysis, statistical modeling, business intelligence, or quantitative strategy roles.
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  Proven experience managing client-facing analytical projects and delivering strategic recommendations through quantitative insights.
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  Strong proficiency in R, Tableau, SAS, Visual Basic, and advanced Excel modeling.
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  Solid understanding of statistical analysis, predictive modeling, decision science, and business analytics frameworks.
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  Ability to transform complex datasets into actionable business recommendations and executive-level insights.
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  Experience handling project coordination, stakeholder reporting, and cross-functional collaboration.
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  Strong analytical thinking, communication, and problem-solving capabilities.
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  Detail-oriented mindset with strong organizational and multitasking abilities.
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  Professional fluency in both Japanese and English is mandatory for bilingual client communication and reporting activities.

Job code: #689 #690