Sayan Biswas
Lead Data Scientist
Bengaluru, Karnataka, India
Summary
👤
Senior🎓
Top SchoolSayan Biswas is a Lead/Staff Data Scientist with 11 years of experience building large-scale ML systems and production forecasting pipelines, most recently delivering ad targeting, forecasting and agentic AI tools at Walmart Global Tech and leading data science at Sahaj Software. He has driven measurable impact—improving forecast accuracy and campaign burn-rate, cutting Spark job runtimes and AWS costs dramatically, and boosting provider-data accuracy by double-digit percentage points using ensemble and boosting methods. Comfortable from research-grade transformers to PySpark at scale, he blends hands-on model engineering (TFT, LLMs, XGBoost, BERT) with pragmatic system design and AutoRCA for operational reliability. He also co-founded UrbanTreelogy, applying LLMs to consumer-facing plant-care automation, showing his knack for turning ML into product experiences. Trained at IISc with multiple Udacity ML nanodegrees, he pairs academic rigor with applied production wins across retail, healthcare and ad tech.
11 years of coding experience
7 years of employment as a software developer
M.E., Computer Science & Automation, M.E., Computer Science & Automation at Indian Institute of Science (IISc)Machine Learning Advanced Nanodegree, Computer Science, Machine Learning Advanced Nanodegree, Computer Science at UdacityB. Tech, Computer Science, B. Tech, Computer Science at Institute Of Engineering and Management
English, Hindi, Bengali
Stackoverflow
4,508reputation
778kreached
109answers
52questions
apache-kafka
top-1%
tensorflow
top-5%
machine-learning
top-5%
keras
top-5%
deep-learning
top-5%
python
top-5%
Github Skills (56)
temporal10
pytorch-lightning10
apache-kafka10
uncertainty10
pytorch9
temporal-data9
python9
machine-learning9
prophet9
natural-language-processing9
tensorflow9
deep-learning9
time-series-forecasting9
forecasting9
keras9
Programming languages (1)
Github contributions (5)
spireofdreams/ml-dl-deep-dive
May 2019 - Oct 2019
Contributions:56 commits, 75 pushes, 1 branch in 5 months
spireofdreams/coursera_specializations
Aug 2020 - Nov 2020
Contributions:11 pushes, 1 branch in 3 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.