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Ayush Bhateja

@ayushbhateja1

Message

I build data-driven controls and machine learning models that improve customer acquisition profitability.

India

Message

At American Express, I lead development of a transformer-based model that identifies customer intent from sequential website clickstream activity, contributing from research through model development.

I previously built an enterprise control that blocked unprofitable customers from welcome offers, driving approximately $25MM in upfront investment savings. I also evaluated a gaming control that enabled approximately $44MM in cost savings.

My work combines SQL, Python, machine learning, experimentation, and data storytelling. I also built t-SNE analyses of vesicle networks and contributed to a gold-medal iGEM project developing a CRISPR Cas12-based HPV diagnostic kit.

Experience

Work history, roles, and key accomplishments

Current

Senior Analyst

Current

American Express

Mar 2026 - Present (6 months)

Leading development of a transformer-based model to identify customer intent from sequential digital clickstream activity. Researching transformer-based sequence modeling approaches and driving iterative architecture experimentation.

Transformer Models Sequence Modeling Clickstream analysis Python Machine Learning

Analyst

American Express

Sep 2024 - Feb 2026 (1 year 5 months)

Led end-to-end development of a strategic control to block unprofitable customers from accessing welcome offers, driving ~$25MM in upfront investment savings. Evaluated business impact of a gaming control through test vs. control analysis on ~30K acquisitions, enabling ~$44MM in cost savings.

SQL Python Machine Learning ROI Analysis Segmentation A B Testing Root Cause Analysis