Varun Sayal
Senior Manager, Data Science, Amazon Payments
Seattle, Washington, United States
Summary
👤
Senior🎓
Top SchoolVarun Sayal is a data science and AI leader with over a decade of experience building and scaling analytics and ML teams across Amazon Payments, Amazon Business, and customer-service operations. He blends hands-on modeling (from gradient boosting to text-to-SQL via Retrieval-Augmented Generation) with manager-of-managers experience, owning roadmaps, cross-functional delivery, and productivity automation. Varun has driven causal inference, forecasting, fraud detection, multi-touch attribution, and LLM-enabled workflows using tools like LangChain and Claude Sonnet to solve high-impact business problems. Based in Seattle and armed with an MBA from ISB and a technical B.Tech from IIT Delhi, he’s comfortable moving between SQL, Python/R, and production ML on AWS while mentoring teams to deliver measurable ROI. Notably, he transitioned from operational capacity planning and returns logistics into advanced AI applications, giving him a rare blend of ground-level process judgment and cutting-edge model expertise.
11 years of coding experience
12 years of employment as a software developer
Indian Institute of Technology Delhi (IIT Delhi)High School Mathematics and Computer Science Physics Chemistry, High School Mathematics and Computer Science Physics Chemistry at J.L.D.A.V. Public SchoolMBA Operations and Finance, MBA Operations and Finance at Indian School of Business
Stackoverflow
151reputation
4kreached
9answers
0questions
Github Skills (14)
pylint8
intellisense8
python-extension7
kubernetes6
argparse6
selenium-webdriver6
selenium6
python6
vscode6
multithreading6
webdriver6
vscode-extension6
visual-studio5
visual-studio-code5
Programming languages (1)
Github contributions (5)
sayalvarun/foodnicity
Mar 2015 - May 2015
Contributions:16 commits, 13 pushes in 2 months
sayalvarun/sayalvarun.github.io
Apr 2015 - Sep 2016
Contributions:8 pushes in 1 year 5 months
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