Working on strategic research team building foundational LLMs for Grammarly.Focus areas: Distributed large-scale model training (pretraining, fine-tuning, and model alignment), large-scale batch inference, and Inference Optimization for LLMs.

Tech lead in Alexa AI: Leading a team of engineers and scientist to build an information retrieval system that can answer customers’ questions to Alexa from billions of web documents.Previously, tech lead in Alexa Shopping: Led the team to build natural language processing systems that understand customers’ product questions on Amazon search and answer them via Alexa’s knowledge sources.

Led the team to design and build real-time search that powers ifttt.com/search and recommendation engine that powers content on ifttt.com and mobile apps.

Built algorithms and models for dynamically tuning the difficulty of the games like Farmville. Built data and machine learning pipelines for various ML products like matching players dynamically based on skills for games like words with friends, identifying the best time to send notifications to the player.

Web platform that makes wedding planning fun, easy and collaborative.

Led the research and technical aspects of the Digital Green Project and helped it grow from a research project to an independent company https://digitalgreen.org/.