Company / Team

Search E‑Commerce Team

• Responsible for the search algorithm for TikTok’s global e‑commerce business.
• Use large‑scale machine learning, state‑of‑art NLP, computer vision, and multi‑modal techniques.

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Mission & What You’ll Do

• Build top‑class e‑commerce search experience for over 1 billion monthly users.
• Improve query analysis, text relevance matching, and multi‑modal matching for video content.
• Work on end‑to‑end ranking systems (recall, first‑stage ranking, final‑stage ranking, mixed row).
• Enhance personalized shopping / interest models.
• Improve user experience from browsing through after‑sales.
• Tackle business challenges: supply/demand matching, cold start, sustainable growth of GMV.
• Write code and models, deploy, analyze, iterate.

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Qualifications

Minimum:

• PhD in Computer Science, Engineering, or another quantitative field (final‑year PhD acceptable).
• Excellent coding skills; strong knowledge of data structures & algorithms.
• Strong analytical, modeling & problem‑solving skills; ability to extract key insights from complex data.
• Industry experience in machine learning.
• Good product sense and focus on user experience.

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Preferred:

• Publications in top journals/conferences.
• Experience with ACM‑ICPC or similar competitions.
• Strong communication & ability to adapt to rapid business changes.

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Additional Info

• Must be able to start by end of 2026.
• Clearly state availability and graduation date in your CV.
• Candidates may apply to up to two positions globally; applications reviewed on a rolling basis.

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