Senior Multimodal ML Engineer – Global Content & AI

TikTok Inc.; San Jose (CA); On-site; USD 218,000 - 480,000; Full time

Job summary

TikTok Inc. is seeking an innovative AI/ML Engineer to advance core algorithms for Local Services, leveraging LLMs, NLP, and multimodal learning. You will build semantic representations, knowledge graphs, and end-to-end intelligent transaction optimization for a global audience.

You will tackle multilingual and dynamic data challenges, translate cutting-edge research into production-grade solutions, and work with cross-functional teams to drive growth and improved user experiences.

Qualifications

• Bachelor's degree in CS/AI or related technical field.
• Strong foundations in ML/DL, Transformers, LLMs, and representation learning.
• Experience in NLP, CV, multimodal understanding, AI agents, or knowledge graphs.
• Hands-on Python, PyTorch, distributed training, and large-scale data processing.
• Ability to translate research into scalable production with business impact.
• Strong cross-functional collaboration and communication.

Responsibilities

• Drive core algorithm research for TikTok Local Services using LLMs/MLLMs, NLP, CV.
• Develop semantic representations and knowledge graphs across products.
• Enhance supply- and demand-side experiences to grow transaction conversions.
• Address multilingual and multimodal challenges in dynamic environments.
• Translate research advances into production-grade solutions and reusable foundations.

Skills

ML fundamentals

Transformer architectures

LLMs

NLP

Multimodal understanding

Python

PyTorch

Large-scale data processing

Production deployment

Cross-functional collaboration

Education

Bachelor's degree or above in Computer Science, AI, or related field

Tools

Python

PyTorch

Distributed training

Big data processing

Job description

TikTok Inc. is seeking an innovative AI/ML Engineer to advance core algorithms for Local Services, leveraging LLMs, NLP, and multimodal learning. You will build semantic representations, knowledge graphs, and end-to-end intelligent transaction optimization for a global audience.

You will tackle multilingual and dynamic data challenges, translate cutting-edge research into production-grade solutions, and work with cross-functional teams to drive growth and improved user experiences.