Ashes Das
Austin,TX
Summary
Data scientist with more than 12 years of experience of working in finance, retail industry in data intensive environment
Overview
13
13
years of professional experience
Work History
Lead Data Scientist
Citigroup
07.2023 - Current
- Leading development of complaint classification algorithm to detect high risk customer complaints for remediation
- Leading development of anomaly detection algorithm to identify sales practice risk at agent level
- Leading development of in house Spanish to English translation system for call center agent disposition using large language model
Senior ML Engineer
Samsung Austin Semiconductor
11.2022 - 06.2023
- Led development of classification algorithm to correctly identify defect patterns on semiconductor wafers.
Lead data Scientist
Target Corporation
09.2014 - 11.2022
- Led development of personalized recommender systems for Target online customers.
- Developed Session conversion prediction model using higher order Markov chain to predict whether a session will end in a conversion or not.
- Developed recurrent neural network-based demand forecasting engine for high, medium velocity items across all stores at week level to support inventory planning.
- Developed guest lapse prediction by modelling their purchase behavior to predict their next transaction which provided an early warning of guest lapsing and addressing that by sending targeted guest level promotions.
Senior Analyst
Gap Inc.
08.2011 - 08.2014
Education
Master Of Science - Mathematical Statistics
Indian Institute of Technology, Kanpur, India
Bachelor Of Science - Statistics
Presidency College, Kolkata, India
Skills
- Python
- Shell scripting
- Spark
- HIVE SQL
- Scala(beginner)
- Git
- Predictive Modeling
- Language models (Word2Vec, BERT)
- Decision Tree
- Random forest
- Recurrent neural network
- Boosting
- Markov chain
- Logistic regression
- Outlier detection
- Hypothesis testing
- Matrix factorization
- Pattern recognition
- Recommender systems
- MapReduce
- Agile
Timeline
Lead Data Scientist
Citigroup
07.2023 - Current
Senior ML Engineer
Samsung Austin Semiconductor
11.2022 - 06.2023
Lead data Scientist
Target Corporation
09.2014 - 11.2022
Senior Analyst
Gap Inc.
08.2011 - 08.2014
Master Of Science - Mathematical Statistics
Indian Institute of Technology, Kanpur, India
Bachelor Of Science - Statistics
Presidency College, Kolkata, India