Diamant Michael - Scala high performance programming leverage Scala and the functional paradigm to build performant software

Vincent Theron is a professional software engineer with 9 years of experience. He discovered Scala 6 years ago and uses it to build highly scalable and reliable applications. He designs software to solve business problems in various industries, including online gambling, financial trading, and, most recently, advertising. He earned a master's degree in computer science and engineering from Universit Paris-Est Marne-la-Valle. Vincent lives in the Boston area with his wife, his son, and two furry cats.

To everybody at Packt Publishing, thanks for working so hard to make this book a reality. To Chaitanya Nair, thanks for reaching out to me with this project. To Nikhil Borkar, thanks for providing us with guidance along the way. To Michael Diamant, my coauthor, coworker, and friend, thanks for the knowledge you have brought to this book and for being an inspiration every day. To my parents, thanks for your love and support and for buying me my first computer. And finally, to my wife, Julie, thanks for your constant encouragement and for giving me such a wonderful son.

Michael Diamant is a professional software engineer and functional programming enthusiast. He began his career in 2009 focused on Java and the object-oriented programming paradigm. After learning about Scala in 2011, he has focused on using Scala and the functional programming paradigm to build software systems in the financial trading and advertising domains. Michael is a graduate of Worcester Polytechnic Institute and lives in the Boston area.

The knowledge I am able to share in this book is the result of a lifetime of support and teaching from others. I want to recognize my coauthor, Vincent, for pushing me to take on this effort and for all the hours spent together developing the thoughts contained in our book. All of my current and former colleagues have helped me sharpen my engineering skills, and without their generosity of sharing their learning, I would not have been able to write this book. In addition to Vincent, I want to call out several colleagues that I feel particularly indebted to: Dave Stevens, Gary Malouf, Eugene Kolnick, and Johnny Everson. Thank you to my parents and my brother for supporting me and shaping me into the individual I am today. I am deeply appreciative of the support my girlfriend, Anna, gave me throughout the writing process. And last but not least, thank you to Packt Publishing for helping us write our first book.

Nermin erifovi has been a Scala enthusiast since 2009, practicing it professionally since 2011. For most of his career, he has focused on building backend platforms using JVM technologies. Most recently, as VP Engineering at Pingup, he has been leading the development efforts of a local services booking system.

Nermin is an instructor at Harvard Extension School, where he co-teaches the Concurrent Programming in Scala course and has also given talks at various conferences.

An active Scala community member, Nermin organized the Boston Area Scala Enthusiasts user group and was part of the Northeast Scala Symposium founding team. He is a co-author of the Scala Puzzlers book and co-creator of the Scala Puzzlers website.

Nermin holds an M.Eng in computer science from Cornell University, and his areas of interest include distributed systems, along with concurrent, reactive, and functional programming.

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Preface

Scala is an audacious programming language that blends object-oriented and functional programming concepts on the JVM. Scala has grown from relative obscurity to a top choice for developing robust and maintainable JVM applications. However, writing highly performant applications remains a challenge without a deep understanding of the language and the advanced features that it provides.

Since 2011, we have used Scala to solve complex business challenges with demanding performance requirements. In