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GENERAL FUNCTION: 

**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. 

ESSENTIAL DUTIES AND RESPONSIBILITIES: 

Experimentation Strategy & Execution 

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 

Cross-Functional Collaboration 

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 

Technical Leadership 

Lead the development and deployment of experimentation platforms and tooling in production environments 

Document and evangelize experimentation processes across technical and non-technical audiences 

Innovation & Continuous Learning 

Contribute to the roadmap for an always-on personalization engine 

Stay current with advancements in causal inference, uplift modeling, and experimental design 

 

MINIMUM KNOWLEDGE, SKILLS AND ABILITIES REQUIRED: 

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 

 

WHY JOIN US? 

Join a team where experimentation is central to decision-making. You’ll have the autonomy to shape how we generate and learn from experimental data, influence strategic direction, and build systems that scale across millions of customer interactions. 

Senior Data Scientist, Experimentation (Statistician)

LOCATION -- Cincinnati, Ohio 45202

Fifth Third Bank, National Association is proud to have an engaged and inclusive culture and to promote and ensure equal employment opportunity in all employment decisions regardless of race, color, gender, national origin, religion, age, disability, sexual orientation, gender identity, military status, veteran status or any other legally protected status.