Headline

Data Science @ CommerceIQ • IITG EEE • ex-American Express • Python, LLM, MLOps, Distributed Systems

About

I'm a Data Scientist with 3 years of experience building and productionizing ML and GenAI solutions on large-scale data, spanning financial services (American Express) and e-commerce (CommerceIQ). My experience spans both data science and ML engineering — from research and experimentation to building production-grade ML systems and maintaining them at scale. I'm proficient in Python, PyTorch, PySpark, and GenAI frameworks, with hands-on experience in predictive modeling, large-scale ML systems, and GPU-based training.

Location

Bengaluru

AI stack

aistudio

claude

cursor

claudecode

Qdrant

Work experience

Data Scientist - 1 at CommerceIQ, Jun 2025 - Present · 1 yr 3 mos, Bengaluru, Karnataka, India, Fine-tuning LLMs to improve e-commerce content for Fortune 500 brands.

Data Scientist at American Express, Jul 2023 - Jun 2025 · 2 yrs, Bengaluru, Karnataka, India, – Enhanced data processing pipelines by implementing optimized feature engineering techniques on transaction-level data. Led the technical transition from Apache Pig to Apache Spark and MapReduce – Built pipelines to process multi-billion data points, implementing optimizations that resulted in 9-fold reduction in processing time and 96% reduction in memory usage. – Created an ML model to predict revolve potential of prospect customer base (∼ 258M) which improved the Gini metric by 1100 basis points over the previous production model and had an incremental impact of $3Mn. – Developed end-to-end modelling pipelines involving Data Cleaning and EDA, Feature Engineering, Model Training and Testing, Model Interpretability, and Model Tracking.

Research Intern at Chubu University, May 2021 - Jul 2021 · 3 mos, Kasugai, Aichi, Japan, Performed research in Continual Machine Learning under the guidance of Prof. Koichiro Yamauchi. Worked on codebase and experimentation using Python and PyTorch.

Associate General Secretary at Cepstrum, IIT Guwahati, May 2021 - May 2021 · 1 mo, Guwahati, Co-lead a team of 30 individuals to carry out daily functions of the EEE department's student body.

Content and Creative Teams at Cepstrum, IIT Guwahati, May 2020 - May 2020 · 1 mo, Guwahati, Designed and authored multiple content pieces including annual EEE department's magazine, visual posters, college-help articles, etc.

Education

Bachelor of Technology - BTech, Electrical and Electronics Engineering, Indian Institute of Technology, Guwahati

High School, CBSE, JGI, Aurangabad

Public links

github: https://github.com/tanmay1024

leetcode: https://leetcode.com/tanmaythakur006