Staff Applied Scientist , Inventory & Marketplace Quality 

We are looking for a Lead Staff Data Scientist to join the Marketplace Quality Engineering (MQE) team. MQE is a cross-functional team responsible for the integrity, performance, and trustworthiness of The Trade Desk’s inventory marketplace. We build systems that detect and prevent fraud, measure and improve inventory quality, and optimize marketplace dynamics to deliver better outcomes for advertisers, publishers, and consumers. 

 

In this role, you will provide technical and strategic leadership within MQE by defining data science roadmap and execution plans, owning end-to-end development of advanced modeling, analytical, and measurement systems, and partnering closely with engineering, product, and business leaders to translate complex requirements into trusted, scalable solutions. 

 

WHAT YOU’LL DO 

Technical Ownership 

• Own the data science vision and roadmap for MQE initiatives, aligning technical direction with strategic goals and industry trends. 

• Design, build, and productionize statistical and machine learning models to detect fraud, invalid traffic, and low-quality inventory in adversarial, large-scale environments. 

• Define and maintain metrics, experimentation procedures, and monitoring systems to ensure long-term performance. 

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