Sr. Data Scientist, GenAI & Labeling Platforms

About Pinterest:

Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we’re on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product.

What you’ll do:

We are looking for an experienced and highly capable Data Scientist to help us drive step function improvements in our data labeling capabilities at Pinterest. In this role, you will:

• Execute high-impact scientific work across GenAI-powered labeling and evaluation systems
• Identify opportunities where LLMs and related methods can improve quality, speed, coverage, and cost efficiency
• Develop prototypes that demonstrate value in areas such as prompt optimization, task decomposition, quality estimation, routing, and human-in-the-loop workflows
• Design experiments and measurement frameworks to evaluate model performance, workflow outcomes, and operational tradeoffs
• Partner with engineering, product, and data science teams to productionize successful approaches
• Apply standards for trustworthiness, including bias measurement, calibration, quality control, and responsible oversight
• Contribute to reusable methods and frameworks that can scale across teams and use cases
• Support more junior scientists and contribute to the technical health of the team

What we’re looking for:

• 6+ years of combined post-graduate academic and industry experience (or PhD + 3 years) applying scientific methods to real-world problems on large-scale data
• Strong hands-on experience as an individual contributor solving technically complex, high-impact data science or ML problems
• Experience applying LLMs or other generative AI techniques to practical workflows, systems, or products
• Ability to turn ambiguous problems into rigorous