Nick Glynn is currently employed as a technical trainer and consultant delivering courses and expertise on Android, Python, and Linux at home in the UK and across the globe. He has a broad range of experience, from board bring-up, Linux driver development, and systems development to full stack deployments, web app development, and security hardening for both the Linux and Android platforms.

Steven Heinrich is a full stack web developer who specializes in geospatial applications. He has a Bachelor's degree in Geographic Information Systems (GIS) and a Master's degree in GIS Management, both from Salisbury University. Steve likes to stay updated on new technologies and build a diverse portfolio.

Working on a wide array of projects allows him to work with a tech stack that best fits the unique needs of each project. This versatility and his desire to learn new technologies keeps Steve energized and motivated.

Besides enjoying spending time with his family, sports, and being a tech geek, he relaxes by sipping on one of the many homebrewed beers on tap in his garage.

Sanjeev Jaiswal is a computer graduate with 5 years of industrial experience. He basically uses Perl and GNU/Linux for his day-to-day work. He also teaches Drupal and WordPress CMS to bloggers. He has worked closely with top companies such as CSC, IBM, and Motorola Mobility. He has also developed an interest in web application penetration testing since 2013.

Sanjeev loves to impart his technical knowledge to engineering students and IT professionals and has been teaching since 2008. He founded Alien Coders (http://www.aliencoders.com/) based on the learning through sharing principle for computer science students and IT professionals in 2010 and has become a huge hit in India among engineering students.

He usually uploads technical videos on YouTube under the Alien Coders tag. He has a huge fan base on his site because of his simple yet effective way of teaching and his philanthropic nature towards students. You can follow him at http://www.facebook.com/aliencoders on Facebook and http://twitter.com/aliencoders on Twitter.

He has authored Instant PageSpeed Optimization, Packt Publishing, and is looking forward to author or review more books by Packt Publishing and other publishers.

Maurice HT Ling (personal website: http://maurice.vodien.com) has completed his PhD in Bioinformatics and BSc (Hons) in Molecular and Cell Biology from The University of Melbourne. He is currently a research fellow at Nanyang Technological University, Singapore, and an honorary fellow at The University of Melbourne, Australia. Maurice is the chief editor of the journal, Computational and Mathematical Biology, iConcept Press Ltd.; the co-editor of the e-journal, The Python Papers; and the co-founder of the Python User Group (Singapore).

Recently, Maurice co-founded the first synthetic biology start-up in Singapore, AdvanceSyn Pte. Ltd., as Director and Chief Technology Officer. His research interests lie in life—biological life, artificial life, and artificial intelligence—using computer science and statistics as tools to understand life and its numerous aspects. In his free time, Maurice likes to read, enjoy a cup of coffee, write his personal journal, or philosophize on the various aspects of life.