Narasimha Karumanchi was the Senior Software Developer at Amazon Corporation, India. Most recently he worked for IBM Labs, Hyderabad and prior to that he served for Mentor Graphics and Microsoft, Hyderabad. He received his B-TECH. in Computer Science from JNT University and his M-Tech. in Computer Science from IIT Bombay. He has experience in teaching data structures and algorithms at various training centers and colleges.