Kao Chien Lung is a seasoned programmer with over 25 years of hands-on experience and 15 years as an educator, specializing in JavaScript, Ruby, and Python. He is a respected author of several books on Ruby on Rails and Git published in Taiwan, sharing his in-depth knowledge and insights with a global audience. Kei has also been a featured speaker at conferences and tech events across Asia, including Taiwan and Japan, where he connects with developers and tech enthusiasts on advanced programming techniques and industry trends.