Abhiram Ravikumar is a Senior Data Scientist at Publicis Sapient, specializing in natural language processing, machine learning, and AI. He holds a Master’s in Data Science from King’s College London and brings strong academic and industry experience to this book on transformer models and PyTorch 2.0. A member of the Mozilla Tech Speakers program, he has presented at international conferences including PyCon, MozFest, and CodeMash. He also created a LinkedIn Learning course on Rust Programming with over 60,000 learners, and his talk on Clustering Topic Models for Analytics Vidhya drew 4,200+ participants. With hands-on experience developing and deploying NLP products—such as domain-specific small language models and BERTopic-based solutions—Abhiram offers practical guidance on applying transformer models using PyTorch 2.0.