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Job ID : 1600477 Date Updated : July 1st, 2026
日系大手ECの事業改善をリードするデータアナリスト(派遣/SQL・BI活用)

【日系EC大手】データアナリスト(派遣)|SQL・BIを活用し事業改善をリード

Location Tokyo - 23 Wards
Job Type Contract
Salary Negotiable, based on experience

Work Style

Remote Work and WFH Casual Clothing Minimal Overtime

Job Description

日系大手ECグループのデータソリューション部門にて、EC・広告事業で活用されるカタログデータの価値を最大化するデータアナリストのポジションです。単なるデータ集計にとどまらず、ビジネス課題の特定から仮説構築、データ分析、そして事業サイドへの改善提案までを一貫してリードし、データドリブンな意思決定を推進する役割を担っていただきます。



主な職務内容

  • 事業部門のKPIやプロセスを深く理解しカタログデータ活用におけるボトルネックの特定とロードマップの策定を行う
  • 曖昧なビジネス上の問いに対しステークホルダーへのヒアリングを通じて分析可能な要件へと構造化および定義する
  • SQLや統計的手法を用いて大規模データからビジネスの意思決定に直結するインサイトの抽出を行う
  • 分析結果に基づき運用改善やプロダクト機能改善などの具体的な施策をビジネスサイドへ提案し効果検証を行う
  • プロダクトマネージャーやエンジニアと密に連携し分析結果をプロダクト開発や運用プロセスに反映させる橋渡しを担う

Join one of Japan's largest e-commerce and internet technology companies as a Data Analyst within its Data Solutions Division. In this high-impact role, you will maximize the value of catalog data used across major platforms.

Rather than simply producing reports, you will lead the full analytics lifecycle-from identifying business challenges and formulating hypotheses to performing advanced data analysis and delivering actionable recommendations that drive business improvement.

This is an excellent opportunity for experienced Data Analysts, Business Analysts, BI Analysts, or Analytics Consultants looking to work with large-scale datasets while influencing strategic business decisions.



Key Responsibilities

  • Analyze business KPIs and operational processes to identify opportunities for improving the utilization of enterprise catalog data.
  • Translate ambiguous business questions into structured analytical requirements through stakeholder interviews and business analysis.
  • Perform advanced data analysis using SQL, statistical methodologies, and large-scale datasets to generate actionable business insights.
  • Present data-driven recommendations to improve operational processes, products, and business performance, while measuring the effectiveness of implemented initiatives.
  • Partner closely with Product Managers, Engineers, and operational teams to translate analytical findings into product enhancements and process improvements.
  • Build dashboards and performance reports to support business decision-making.
  • Drive continuous improvement by identifying new opportunities for data utilization across the organization.

General Requirements

Minimum Experience Level Over 3 years
Career Level Mid Career
Minimum English Level Daily Conversation
Minimum Japanese Level Fluent
Minimum Education Level Bachelor's Degree
Visa Status Permission to work in Japan required

Required Skills

必須条件 経験・資格:

  • 事業会社等における5年以上のデータ分析実務経験があること。
  • 高度なSQLスキル(複雑なクエリ作成、パフォーマンスチューニング等)を有すること。
  • TableauやLookerなどのBIツールを用いたダッシュボード構築およびインサイト抽出の実務経験があること。
  • データを用いた課題特定から事業への提案および実行までを自律的にリードした経験があること。
ソフトスキル:
  • 曖昧なビジネス要件をステークホルダーへのヒアリングを通じて構造化・定義できる高い要件定義能力。
  • 各関連部署(PM、エンジニア、運用担当など)と円滑に連携し合意形成ができる高いコミュニケーション能力。
  • 業務を円滑に進めるための日本語ネイティブレベルの語学力。
  • 英語日常会話レベル(TOEIC 600点程度)以上の語学力。
語学力:
  • 日本語:流暢 
  • 英語:日常会話レベル(TOEIC600点目安)
歓迎条件
  • 統計学の深い知見およびA/Bテストの設計や評価経験
  • PythonまたはRを用いたデータ加工、分析、機械学習の実務経験
  • BigQueryやSnowflakeなどの大規模データウェアハウスの活用経験
  • データマネジメントおよびデータガバナンスに関する知見
  • 不明確な状況下でも主体的に行動し道筋を立てられる曖昧さや複雑さへの耐性
この求人がおすすめの理由
  • 日本最大級のメガプラットフォームが持つ膨大なデータに触れることができます。
  • 自ら課題を定義して事業改善を提案・実行できるため、アナリストとして大きな裁量とやりがいを持てる環境です。
  • データソリューションの専門部署に身を置くことで、専門スキルをさらに磨き高めることができます。
Required Skills and QualificationsExperience
  • 5+ years of professional experience in Data Analytics, Business Intelligence, or Business Analysis within a corporate environment.
  • Advanced SQL skills, including complex query development, optimization, and performance tuning.
  • Hands-on experience building dashboards and generating business insights using Tableau, Looker, or similar BI platforms.
  • Proven experience leading projects from business problem identification through data analysis, recommendation, and implementation.
  • Experience working with large-scale business or product datasets.
  • Strong understanding of KPI analysis and data-driven decision-making.
Soft Skills
  • Excellent analytical thinking and business requirement gathering skills.
  • Strong communication and stakeholder management capabilities across Product Managers, Engineers, and business teams.
  • Ability to transform ambiguous business challenges into structured analytical solutions.
  • Self-driven mindset with the ability to work independently in complex environments.
  • Strong problem-solving skills and a passion for continuous improvement.
  • Excellent documentation and presentation skills.
Language Requirements
  • Japanese: Native Level
  • English: Conversational Level (TOEIC 600+ equivalent)
Preferred Skills & Qualifications
  • Strong knowledge of statistics and experience designing or evaluating A/B testing.
  • Practical experience using Python or R for data processing, analytics, or machine learning.
  • Experience working with enterprise data warehouses such as BigQuery or Snowflake.
  • Knowledge of Data Management and Data Governance best practices.
  • Ability to thrive in ambiguous, fast-changing business environments.
Why You'll Love Working Here
  • Analyze data from some of Japan's largest digital platforms
  • Enjoy significant ownership by identifying business challenges and driving data-driven improvements.
  • Develop advanced expertise within a dedicated Data Solutions organization.
  • Collaborate with Product Managers, Engineers, and business leaders in a highly innovative environment.
  • Flexible working arrangements including remote work, casual dress, and minimal overtime.
  • Excellent opportunity to expand your career in Data Analytics, Business Intelligence, SQL, and Product Analytics.
  • Long-term contract with exposure to enterprise-scale digital transformation initiatives.

Job Location

  • Tokyo - 23 Wards

Work Conditions

Job Type Contract
Salary Negotiable, based on experience
Industry Bank, Trust Bank

Job Category