Sanjeev Kumar Jaiswal is a computer graduate with 8 years of industry experience. He uses Perl, Python, and GNU/Linux for his day-to-day activities. He is currently working on projects involving penetration testing, source code review, and security design and implementations. He is mostly involved in the web and cloud security projects.

He is currently learning NodeJS and React Native as well. Sanjeev loves teaching engineering students and IT professionals. He has been teaching for the last 8 years in his leisure time.

He founded Alien Coders, based on the learning through sharing principle, for computer science students and IT professionals in 2010, which became a huge hit in India among engineering students. You can follow him on Twitter at @aliencoders.

He has written Instant PageSpeed Optimization and co-authored Learning Django Web Development with Packt Publishing. He has reviewed more than seven books for Packt Publishing and looks forward to authoring and reviewing more books for Packt and other publishers.