Sr Data Scientist

PayPal • San Jose, CA

1d • Hybrid

About The Position

PayPal has been revolutionizing commerce globally for more than 25 years. Creating innovative experiences that make moving money, selling, and shopping simple, personalized, and secure, PayPal empowers consumers and businesses in approximately 200 markets to join and thrive in the global economy. We operate a global, two-sided network at scale that connects hundreds of millions of merchants and consumers. We help merchants and consumers connect, transact, and complete payments, whether they are online or in person. PayPal is more than a connection to third-party payment networks. We provide proprietary payment solutions accepted by merchants that enable the completion of payments on our platform on behalf of our customers. We offer our customers the flexibility to use their accounts to purchase and receive payments for goods and services, as well as the ability to transfer and withdraw funds. We enable consumers to exchange funds more safely with merchants using a variety of funding sources, which may include a bank account, a PayPal or Venmo account balance, PayPal and Venmo branded credit products, a credit card, a debit card, certain cryptocurrencies, or other stored value products such as gift cards, and eligible credit card rewards. Our PayPal, Venmo, and Xoom products also make it safer and simpler for friends and family to transfer funds to each other. We offer merchants an end-to-end payments solution that provides authorization and settlement capabilities, as well as instant access to funds and payouts. We also help merchants connect with their customers, process exchanges and returns, and manage risk. We enable consumers to engage in cross-border shopping and merchants to extend their global reach while reducing the complexity and friction involved in enabling cross-border trade. Our beliefs are the foundation for how we conduct business every day. We live each day guided by our core values of Inclusion, Innovation, Collaboration, and Wellness. Together, our values ensure that we work together as one global team with our customers at the center of everything we do – and they push us to ensure we take care of ourselves, each other, and our communities. Job Summary: Job Description: PayPal, Inc. seeks Sr Data Scientist San Jose, CA

Requirements

• Master’s degree, or foreign equivalent, in Computer Science, Engineering, Statistics, or a closely related field plus five years of experience in the job offered or a related occupation.
• Experience using Python and SQL for data analysis, querying databases, and machine learning (3 years).
• Experience with statistical analysis, probability, hypothesis testing, parametric & non-parametric tests, A/B testing frameworks, and product analytics (3 years).
• Experience with Bayesian Statistics and Mixed Effect Modeling to measure Product launches (3 years).
• Experience with machine learning and predictive modeling, including scikit-learn, TensorFlow, or PyTorch for building and deploying models (3 years).
• Experience with data visualization, Tableau, Looker, Plotly, Dash and Matplotlib/Seaborn for presenting insights (3 years).
• Experience working with PySpark and Hadoop for handling large-scale datasets (3 years).
• Experience with AWS, GCP, or Azure for cloud computing, storage, and model deployment (3 years).
• Experience with ETL pipelines and data warehouses to work efficiently with structured and unstructured data (3 years).
• Experience translating data insights into actionable business strategies and communicating findings to stakeholders (3 years).
• Experience with Causal Inference methods to measure product impact (1 year).

Responsibilities

• Identify and segment developer personas based on behavioral data from website activity, API usage, and documentation interactions.
• Develop clustering models to understand developer needs and friction points across different integration paths.
• Map the end-to-end developer journey to uncover key friction points.
• Build data-driven frameworks to measure developer engagement and success across different touchpoints (e.g., docs, sandbox, API logs).
• Collaborate with UX and DevEx teams to drive improvements based on insights.
• Build a Centralized Experimentation Hub to measure multi-variate experiments for DevEx initiatives.
• Develop automated pipelines to run statistical tests for evaluating DevEx changes.
• Apply causal inference techniques to measure the impact of changes in developer docs and the developer portal.
• Define and build an Integration Score framework to evaluate merchant API integrations and identify low-performing merchants.
• Develop predictive models to identify merchants using Legacy APls and recommend migration strategies to the latest PayPal APls.
• Work closely with Product and Engineering teams to improve API adoption and integration health.

Benefits

• At PayPal, we’re committed to building an equitable and inclusive global economy.
• That’s why we offer comprehensive, choice-based programs, to support all aspects of personal wellbeing—physical, emotional, and financial—delivering meaningful value where it matters most.
• We strive to create a flexible, balanced work culture with a holistic approach to benefits, including generous paid time off, healthcare coverage for you and your family, and resources to create financial security and support your mental health.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level