Brian C Galura spent his childhood tinkering with subjects such as Java programming and Linux; his professional experience started with VoIP testing at 3Com in suburban Chicago. He then spent two years studying computer engineering at Purdue University before leaving to pursue freelance consulting in Los Angeles.

Following several years of freelancing, he developed his expertise in enterprise infrastructure and cloud computing by working for a variety of start-ups and large corporations. Later, he completed a bachelor's in IT while working at Citrix. Brian is currently working on Citrix's cloud engineering and systems architecture team in Santa Barbara, California.

Deepak G Kulkarni has around 10 years of experience in software engineering including nine years of strong experience in product development using C/C++/Java.

He has over four years of experience in JUnit, Core JAVA, Web Services, XML, Spring, Spring MVC, and Hibernate. He also has extensive software development experience using C/C++ on UNIX (HP-UX) and Sun-Solaris, shell scripting, and STL (Standard Template Library) and cross-platform development. Deepak also has over two years of experience in the Mac OS using Objective C/C++, Cocoa framework, Xcode, and MetroWorks IDE.

Deepak has a working knowledge of Perl/SNMP/TCP/IP, OS Internals, web services, XML, XSD, database (Oracle)/IPC (inter process communication)/system calls/Pro*C. He has been exposed to UML / use case diagrams / class diagrams / sequence diagrams / activity diagrams / state diagrams, IBM Rational Rose, and Design Patterns (GoF Patterns) / Design Principles. He has hands-on experience with Ant, Maven, JUnit, JProfiler, JProbe, JSON, Servlets, Python, and Ruby on Rails, as well as experience in remote service calls and client server programming.

Warren Myers has been a professional data center and cloud automation architect for over eight years, with exposure to dozens of platforms, scores of customers, and hundreds of interesting problems.

He was a reviewer on Raspberry Pi Server Essentials and wrote the freely-available e-book, Debugging and Supporting Software Systems (http://cnx.org/contents/[email protected]:1/Debugging_and_Supporting_Softw).

Siddhesh Poyarekar has been a free and open source software programmer for over seven years and has worked on a variety of projects beginning with writing his own dialer program for an ISP that did not have a UI-based dialer for Linux. He spent a number of years troubleshooting problems in various domains from the Linux desktop, shell, and the kernel to the core system runtime on Linux systems, that is, the GNU C Library for which he is now a maintainer.