Sr Data Scientist

PayPal
San Jose, California2026-04-27Full time

About the job

We are looking for a Senior Data Scientist to drive insights and optimization across merchant integrations and checkout experiences. This role sits at the intersection of data science, software systems, and AI, requiring a strong understanding of APIs/SDKs, user behavior, and experimentation. You will analyze and improve end-to-end merchant and user journeys, design robust experiments, and leverage modern AI techniques to enhance insights and decision-making.

Responsibilities

Lead the development and implementation of advanced data science models.

Collaborate with stakeholders to understand requirements.

Drive best practices in data science.

Ensure data quality and integrity in all processes.

Mentor and guide junior data scientists.

Stay updated with the latest trends in data science.

Qualifications

Minimum

3+ years relevant experience and a Bachelor’s degree OR Any equivalent combination of education and experience.

Preferred

Experience in payments, e-commerce, or platform ecosystems

Familiarity with merchant onboarding or integration workflows

Experience working with large-scale behavioral data

Exposure to LLMOps or production AI systems