Senior Data Scientist, Experimentation (Statistician)

Fifth Third Bank • Cincinnati, OH

1d • Onsite

About The Position

This position is not available for immigration sponsorship. We are seeking a Senior Data Scientist with deep expertise in experimentation, causal inference, and statistical measurement to optimize customer interactions across marketing, servicing, and digital channels. This role is a technical individual contributor position with high visibility and strategic impact. You will lead the design and implementation of scalable experimentation frameworks, partnering cross-functionally to ensure technical solutions drive improvements in both customer outcomes and business performance.

Requirements

• Advanced degree (MS/PhD) in Statistics, Economics, Data Science, or related field strongly preferred
• 7+ years of experience in designing and analyzing experiments, ideally in a regulated industry (e.g., banking, healthcare)
• Proficiency in Python and SQL; experience with experimentation platforms (e.g., Optimizely, LaunchDarkly, custom-built)
• Strong communication skills with the ability to influence and educate stakeholders at all levels
• Experience deploying statistical models and experimentation frameworks in production environments

Responsibilities

• Design and measure robust experiments to optimize customer engagement across channels
• Develop scalable experimentation infrastructure that supports concurrent tests while preserving causal validity
• Translate complex statistical findings into actionable business insights and strategic recommendations
• Partner with product, marketing, finance, and engineering teams to align on test design and implementation
• Provide statistical guidance and mentorship to peers and stakeholders on best practices in experimentation
• Lead the development and deployment of experimentation platforms and tooling in production environments
• Document and evangelize experimentation processes across technical and non-technical audiences
• Contribute to the roadmap for an always-on personalization engine
• Stay current with advancements in causal inference, uplift modeling, and experimental design

Benefits

• Comprehensive benefits
• Differentiated compensation offerings
• Eligible to participate in an incentive compensation plan
• Extensive benefits programs designed to support the individual needs of our employees and their families, encompassing physical, financial, emotional and social well-being.

What This Job Offers

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