Senior Machine Learning Engineer (NLP/Multimodal) - E-commerce - Seattle

TikTok is the leading destination for short-form mobile video. Our mission is to inspire creativity and bring joy. TikTok has global offices including Los Angeles, New York, London, Paris, Berlin, Dubai, Singapore, Jakarta, Seoul and Tokyo.

Why Join UsCreation is the core of TikTok's purpose. Our platform is built to help imagination thrive. This is doubly true of the teams that make TikTok possible.

Together, we inspire creativity and bring joy - a mission we all believe in and aim towards achieving every day. To us, every challenge, no matter how difficult, is an opportunity;

to learn, to innovate, and to grow as one team. Status quo? Never. Courage? Always. At TikTok, we create together and grow together.

That's how we drive impact - for ourselves, our company, and the communities we serve. Join us. E-commerce is a new and fast growing business that aims at connecting all customers to excellent sellers and quality products on TikTok Shop, through E-commerce live-streaming, E-commerce short videos, and commodity recommendation.

We are a group of applied machine learning engineers and data scientists that focus on E-commerce recommendations. We are developing innovative algorithms and techniques to improve user engagement and satisfaction, converting creative ideas into business-impacting solutions.

We are interested and excited about applying large scale machine learning to solve various real-world problems in E-commerce.

What You Will DoResponsible for the NLP-related design and development, mainly including : 1. Building the intent classifier in a full-stack manner by designing taxonomy, creating and managing high quality labeled data, training the best performed machine learning model (like Bert, GPT), and monitoring the online performance of the model.

2. Building the prediction model by mapping the shopping journey of our users to chatbot actions, including suggesting common question-answers and transferring the user to human agent, with cutting-edge prediction models (like Boosting, deep CTR).

3. Building the generation model by understanding business requests, exploring proper instructions, developing high-quality data, and finetuning a language model of billions of parameters (.

13B, 60B).4. Working closely with our product and operation teams to quantitatively understand the impact of our chatbot and continuously bridge the business improvement action to model optimization action.

1. Bachelor's degree or above in computer science or related field2. Solid coding skills, ability to develop in a Linux environment, proficient in Python, Go, or C++3.

5+ years of experience with solid foundation in data structures / algorithms, proficient in machine learning / deep learning theory, and rich practical experience4.

Familiar with 1-2 areas in natural language processing, computer vision, multimodal, graph algorithms, search algorithms, text / data mining, and LLM5.

Excellent analytical and problem-solving skills, passionate about challenging problems6. Good team spirit and strong communication skills