Research Scientist, AI Search & Multimodal ML

TIKTOK PTE. LTD.; Singapore; On-site; SGD 150,000 - 210,000; Full time

Benefits offered by this job

Stock options

Positive team atmosphere

Career growth opportunity

Paid leave

Flat organization

100+ mil users

Industry experts

Flexible hours

Job summary

TikTok is seeking a PhD-level AI researcher to join our Singapore team, focusing on building next‑generation AI search systems using foundation models and multimodal ML. You will work on scalable retrieval, personalized ranking, and intelligent agent tech.

Ideal candidates have deep ML/LLM expertise, strong coding skills in C/C++, Python, and a track record in AI research. This role offers a fast-paced environment with collaboration across research and product teams.

Qualifications

• 1. Individuals completing or recently completed a PhD in AI, Computer Science, Computer Engineering, or a related field.
• 2. Excellent coding skills and a solid foundation in Machine Learning/Deep Learning/LLM, proficient in C/C++ or Python.

Responsibilities

• Team Introduction: Build and own our search engine; combine information retrieval with ML methods.
• Topic Content: Leverage foundation models to build next‑gen AI search systems; explore multimodal pre-training and LLM-based agents.
• Topic Challenges: Address personalized ranking, ultra-large-scale retrieval, and complex multi-turn search needs.

Skills

C/C++

Python

Machine Learning

Deep Learning

NLP

Education

PhD in AI/CS/CE

Tools

Git

Linux

PyTorch

Job description

TikTok is seeking a PhD-level AI researcher to join our Singapore team, focusing on building next‑generation AI search systems using foundation models and multimodal ML. You will work on scalable retrieval, personalized ranking, and intelligent agent tech.

Ideal candidates have deep ML/LLM expertise, strong coding skills in C/C++, Python, and a track record in AI research. This role offers a fast-paced environment with collaboration across research and product teams.