yifeng wangYW
Looking for a job

yifeng wang

@yifengwang

I’m a Machine Learning Scientist with experience in building and optimizing algorithms

China

What I'm looking for

I’m now looking for opportunities where I can apply my skills to solve challenging algorithmic problems and collaborate on impactful AI products, preferably in a remote-friendly environment.

Currently, I’m working at PayPal’s Global Data Science Department, where I focus on developing risk control models using advanced techniques like contrastive learning, graph neural networks, and multi-task learning to improve model interpretability and generalization.

Previously, I worked as an Advertising Algorithm Engineer intern at Kuaishou, where I optimized feed ad ranking models and enhanced conversion performance by refining feature extraction and multi-task frameworks.

I’m proficient in Python for machine learning, with additional experience in C++ for game development and Java for Android development. I’m also CET-6 certified, allowing me to comfortably read and understand English academic literature and stay up to date with the latest research.

I’m now looking for opportunities where I can apply my skills to solve challenging algorithmic problems and collaborate on impactful AI products.

Experience

Work history, roles, and key accomplishments

Education

Degrees, certifications, and relevant coursework

Nanjing University logoNU

Nanjing University

Master, Computer Science

2019 - 2022

Studied advanced topics in computer science, focusing on algorithms, data structures, and software engineering principles.

Hangzhou Dianzi University logoHU

Hangzhou Dianzi University

Bachelor, Computer Science and Technology

2015 - 2019

Completed a comprehensive program in computer science and technology, emphasizing programming, systems design, and network management.

Tech stack

Software and tools used professionally

Availability

Looking for a job

Location

China

Authorized to work in

Salary expectations

100k-150k USD

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yifeng wang - Machine Learning Scientist - PayPal | Himalayas