I am Roshan Kumar, a seasoned data science professional with over a decade of experience in product analytics and leading data science teams. I hold advanced machine learning, mathematics, and computer science degrees from Kellogg School of Management and IIT Delhi. Throughout my career, I have honed my skills in data handling, modeling, and deploying large-scale systems. Some of my notable achievements include winning the Allstate Business Challenge, ranking 15th in the International Mathematical Olympiad, and receiving multiple awards at DocuSign and Microsoft. I have successfully led teams at DocuSign, Microsoft, GoDaddy, Tesco, and Oracle, driving significant advancements in product analytics, sustainability initiatives, and customer retention. My technical expertise spans a wide range of tools and platforms, and I have contributed to pioneering projects like the Microsoft Sustainability Calculator, as well as filing patents and publishing research on emissions transparency. I very much enjoy taking interviews and coaching candidates. I have conducted over 100 interviews across various companies and participated in over 50 interviews with top firms.