Graduate ML Engineer — AI-Powered E‑commerce Search

TikTok; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

TikTok is seeking researchers for its global e-commerce search team. The role focuses on large-scale ML, NLP, CV, and multi-modal techniques to improve search relevance and user experience for billions of monthly users.

You will contribute to end-to-end ranking, personalized recommendations, and scalable AI search solutions. The position demands a PhD in a technical field, strong coding skills, and a track record in ML with an emphasis on user-centric product experience.

Qualifications

• Individuals who are completing or have recently completed a PhD degree in Software Development, Computer Science, Computer Engineering, or a related technical discipline.
• Excellent coding skills. Solid knowledge of data structure and algorithms.
• Excellent in analysis, modeling and problem-solving, and can see the essence of problems from complex data.
• Industry work experience in machine learning. Good product sense with a focus on user experience.

Responsibilities

• Improve the basic search quality and user experience: Optimize query analysis and text relevance matching. Understand e-commerce video content and implement multi-modal matching. Improve users' perception of product authority, and deeply participate in the design and implementation of core search products. Comprehensively improve the end-to-end shopping experience from browsing to after-sales.
• Design and implement the end-to-end ranking system (recall, first stage ranking, final stage ranking and mixed row): Improve users' personalized shopping interests model. Improve the shopping conversion efficiency for merchandise, video and live stream to promote GMV growth.
• Promote the development of the ecosystem: From the perspective of the industry and businesses, solve challenging problems such as supply and demand matching, business cold start, and sustainable business growth, etc. Think, analyze and adjust the evolution of the system to achieve long-term and sustainable growth of GMV.
• Participate in the exploration and development of personalized AI search, with a focus on harness engineering, post-training optimization, and rubric-based automated evaluation, to build next-generation search experiences that better understand users, reason over intent, and make intelligent decisions.
• Work in a team setting and apply knowledge in statistics, scripting and programming languages required by the firm.
• Work with the relevant software platforms in which the models are deployed.

Skills

Coding skills

Data structures

Algorithms

Machine learning experience

Product sense

User experience

Education

PhD in Computer Science/Software Engineering

Job description

TikTok is seeking researchers for its global e-commerce search team. The role focuses on large-scale ML, NLP, CV, and multi-modal techniques to improve search relevance and user experience for billions of monthly users.

You will contribute to end-to-end ranking, personalized recommendations, and scalable AI search solutions. The position demands a PhD in a technical field, strong coding skills, and a track record in ML with an emphasis on user-centric product experience.