Content Understanding LLM Algorithm Engineer Intern (Global E-Commerce) - 2027 Start (PhD)

TikTok; Singapore; On-site; SGD 22,000 - 39,000; Full time

Job summary

TikTok invites PhD students to join our internship program in Singapore, focusing on developing and governance of ecommerce AI systems. You'll work on large language models, multimodal ML, and governance optimization within a collaborative team.

This hands-on program blends research with product impact, offering exposure to cutting-edge AI infrastructure, cross-functional collaboration, and opportunities to publish and contribute to real-world platforms.

Qualifications

• Solid programming skills and a strong foundation in data structures and algorithms.
• Strong foundation in machine learning, with in-depth understanding of deep learning, reinforcement learning, NLP, or multimodal learning.
• Demonstrate good communication and collaboration skills to work with the team on new technologies and innovation.

Responsibilities

• Large language Model Algorithm Development: Build domain-specific LLM/MLLMs for ecommerce, integrating domain knowledge to apply models to business scenarios.
• E-commerce Governance Optimization: Improve merchant/product/video/live-stream/IPR governance through algorithm optimization and develop intelligent review systems.
• Model Enhancement: Data construction, foundational model improvements, instruction fine-tuning, and PEFT for ecommerce domain.
• Problem Solving for Governance Applications: Tackle long text modeling, few-shot learning, content moderation, violation detection, and policy recommendations using large models.
• Model Development and Optimization: Research and optimize ecommerce NLP and multimodal models to improve multilingual, multi-task, and multi-modal performance.

Skills

Programming skills

Data structures & algorithms

Machine learning basics

Communication & collaboration

Education

Pursuing PhD in Software Development/ Computer Science/ Computer Engineering

Job description

About the Team

Through algorithm optimization and collaboration with business teams, the team conducts comprehensive quality and ecosystem governance for e-commerce products. This involves combating risks, violations, and low-quality issues, as well as constructing and optimizing the e-commerce ecosystem. The team aims to maximize platform governance effectiveness while improving operational efficiency and reducing costs. Additionally, the team is dedicated to advancing cutting‑edge AI technologies to drive business transformation and development through technical innovation, covering diverse fields including but not limited to NLP, CV, multimodal models, large models, graph algorithms, and sequence algorithms.

We are looking for talented individuals to join us for an internship. PhD internships at Our Company provide students with the opportunity to actively contribute to our products and research, as well as to the organization's future plans and emerging technologies.

Our dynamic internship experience blends hand‑on learning, enriching community‑building and professional development events, and collaboration with industry experts.

Responsibilities

• Large language Model Algorithm Development: Build domain‑specific large language models (LLM/MLLM) for ecommerce, integrating domain knowledge to rapidly apply models to business scenarios.


• E‑commerce Governance Optimization: Understand e-commerce governance scenarios deeply to improve merchant/product/video/live‑stream/IPR governance through algorithm optimization. Develop state‑of‑the‑art intelligent review systems capable of “knowing why to reject” decisions.


• Model Enhancement: Handle tasks like data construction, foundational model enhancement, instruction fine‑tuning, chain‑of‑thought (CoT) , and parameter‑efficient fine‑tuning (PEFT) to achieve optimal model performance in the e‑commerce domain.


• Problem Solving for Governance Applications: Address challenges such as long text/sequence modeling, few‑shot learning, content moderation, violation detection, and policy recommendation using large models and multimodal approaches.


• Model Development and Optimization: Research and optimize e‑commerce‑specific NLP and multimodal large models to improve multilingual, multi‑task, and multi‑modal algorithm performance across various e‑commerce scenarios.

Minimum Qualifications

• Currently Pursuing a PhD in Software Development, Computer Science, Computer Engineering, or a related technical discipline.


• Possess solid programming skills, a strong foundation in data structures and algorithms, and proficiency in using various algorithmic and engineering frameworks.


• Strong foundation in machine learning, with in‑depth understanding and research experience in deep learning, reinforcement learning, NLP, or multimodal learning.


• Demonstrate good communication and collaboration skills, with the ability to work closely with the team to explore new technologies and drive technical innovation.

Preferred Qualifications

• Prior publications in international conferences or journals (including but not limited to ACL, EMNLP, NeurIPS, ICML, ICLR, CVPR) are preferred.


• Strong practical abilities, with achievements in competitions like Kaggle, GLUE, Super GLUE, CLUE, etc.

Job Information

About TikTok

TikTok is the leading destination for short‑form mobile video. At TikTok, our mission is to inspire creativity and bring joy. TikTok's global headquarters are in Los Angeles and Singapore, and we also have offices in New York City, London, Dublin, Paris, Berlin, Dubai, Jakarta, Seoul, and Tokyo.

Why Join Us

Inspiring creativity is at the core of TikTok's mission. Our innovative product is built to help people authentically express themselves, discover and connect – and our global, diverse teams make that possible. Together, we create value for our communities, inspire creativity and bring joy - a mission we work towards every day.

We strive to do great things with great people. We lead with curiosity, humility, and a desire to make impact in a rapidly growing tech company. Every challenge is an opportunity to learn and innovate as one team. We're resilient and embrace challenges as they come. By constantly iterating and fostering an \"Always Day 1\" mindset, we achieve meaningful breakthroughs for ourselves, our company, and our users. When we create and grow together, the possibilities are limitless. Join us.

Diversity & Inclusion

TikTok is committed to creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people from across the globe and so does our workplace. At TikTok, our mission is to inspire creativity and bring joy. To achieve that goal, we are committed to celebrating our diverse voices and to creating an environment that reflects the many communities we reach. We are passionate about this and hope you are too.