<p>Data Science Director (Advertising Technology) | Tokyo | 12-20M JPY<br /><br />We're looking for a hands-on Data Science Leader to help drive innovation in the digital advertising space. If you love applying machine learning to real-world problems and want to help build top-tier ad-tech products, this is the role for you.<br /><br />What You'll Do<br />・Enhance prediction models and features for advertising platforms<br />・Develop pricing optimization logic to maximize ad inventory value<br />・Build recommendation systems for dynamic creative and product suggestions<br />・Define and share the vision for future data science initiatives<br />・Mentor junior data scientists on the team<br />・Communicate strategy and technical work clearly across the business<br /><br />Tech &amp; Tools<br />・Languages: Python<br />・Databases: Clickhouse, MySQL, BigQuery<br />・Cloud: GCP<br />・Tools: GitLab, Slack, Redmine, Confluence, plus AI coding assistants<br />・Hardware: Mac<br /><br />Team &amp; Environment<br />・1 Manager, 2 Team Leads, ~9 Data Scientists<br />・Collaborative engineering culture with autonomy and broad scope<br />・Flexible work style: primarily in-office with 2 days/week remote option<br /><br />What You'll Gain<br />・Work on large-scale ad-tech platforms with billions of monthly impressions<br />・Tackle pricing optimization and recommendation challenges similar to top global DSPs<br />・Opportunity to shape cutting-edge ad-tech algorithms with real business impact<br />・Engineering environment with strong AI/ML support and tooling<br /><br />Who We're Looking For<br />・3+ years in data science or machine learning for marketing, advertising, or related fields<br />・Strong Python skills and experience in applied ML<br />・Enjoys diving deep into ad-tech challenges and pushing technical boundaries<br />・Able to communicate technical vision to both engineering and business teams<br />・Proactive, curious, and excited about continuous improvement<br />・Fluent Japanese required; English is a plus<br /><br />Nice-to-Have<br />・PhD or Master's in a related field<br />・Experience with generative AI or advanced ML<br />・Strategic thinking and problem-solving skills<br />・Proven track record applying new technologies to business needs<br />・Understanding of technical challenges in the advertising industry</p><p><em>By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.</em></p><hr /><p>お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。</p><img src="https://counter.adcourier.com/Um9jY28uU29uZy4yMjQ4My4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">