Harishankaran K, co-founder and CTO of HackerRank, has an impressive professional background marked by his experience as a software developer and build engineer at IBM. Prior to that, he was selected as a Google Summer of Code under Firefox Organization and worked in Novell, Bangalore under Novell Opensource Internship Program (NOSIP). At HackerRank, he has overseen scaling the product from 0 users to thousands of users per day, and is responsible for product delivery and management. Harishankaran is known for creating an in-house code checker which is now the core of hackerrank.com. His specialties include programming, architecture, and scaling.