• User/query intent understanding, document/ad understanding, user targeting
• User response (click & conversion) prediction using large scale machine learning algorithms

• Ads Trust & Safety : Ads Editorial, Network protection, fraud detection, traffic quality measurement
• Marketplace mechanism design and optimization, and whole-page experience optimization
• Personalization
• Innovative new ads products
• Advertising metrics and measurement, including relevance and ad campaign effectiveness

• Data mining and analytics
• Supply-demand forecasting
• Ad campaign planning and optimization
• Experimentation infrastructure including tools for configuring and launching experiments, dashboard, live marketplace monitoring, and diagnosis.

• 7 + s oftware development experience in one of the major programming languages: C++, C#, C, or Python required.

• 4 + years hands-on experience with PyTorch or Tensorflow .
• Strong knowledge and skills in machine learning software development and architectures for machine learning (with focus on deep learning).
• Research or Industry experience with one or more of following areas n atural l anguage p rocessing, i nformation r etrieval, c omputer v ision, l arge s cale m achine l earning, r einforcement l earning.
• Bachelor degree in computer science or a related field is required.
• Excellent problem solving and data analysis skills.

• Passionate, self-motivated.
• Effective communication skills, both verbal and written.
• Strong software design and development skills/experience.

Preferred Qualifications:

• Phd /MS in a machine-learning related area with p ublications in top tier conferences
• Experience in building, deploying, and improving large scale Machine Learning models and algorithms in real-world products.