D. Kelker - Clojure for Domain-specific Languages

Ryan D. Kelker is a Clojure enthusiast and works as a freelancehe is willing to take on any project that sounds interesting. He started exploring computers and the Internet at a very early age and he eventually ended up building both machines and software. Starting with MS DOS, batch files, and QBasic, he eventually floated towards Arch Linux and the Clojure language.

He has four certifications from both CompTIA and Cisco, and has decided not to pursue any additional certifications. These days, he spend most of his time reading about software development, cyber security, and news surrounding up-and-coming computer languages. While away from the computer, he is usually reading a book or going out to eat with the people he loves the most.

I would like to thank Packt publishing for giving me the opportunity to write something great, and Chatsubolabs.com for giving me my first Clojure job. I would also like to thank Tom Marble, Edward Raison, and Kevin Raison for teaching me countless lessons.

Hussein Baghdadi is a programming-language junkie. Switching between programming paradigms is his favorite trampoline. He worked in various domains from Telecommunications to e-commerce, passing through Big Data systems and independent software providers. His current areas of interest are machine learning, natural language processing, and game development. His favorite language is Clojure. He works as a moderator at JavaRanch.com. When he isn't coding, reading, or talking to himself, he plays the Spanish guitar.

First, I would like to thank Pack Publishing for the great opportunity they gave to me to be a small part in this unexpected journey.

I want to thank all the employers who showed faith in me and allowed me to push code into their SCMs.

Thank you Rich Hickey for creating such a beautiful language. Thank you Sun Microsystems for conjuring the JVM.

Thank you my real friends. You have always helped me and enriched my life. Your support is making the plane fly.

Special respect and gratefulness for my virtuoso guitar teacher who showed to me what a real master (and a real human) is made of.

My parents gave me unconditional love and taught me honor and dignity. My unconditional love goes to them.

Finally, thank you Syria, the Netherlands, and Deutschland.

Paulo Suzart worked in different companies in the last ten yearsfrom e-commerce to insuranceas a Java programmer and lately as an SOA specialist. Currently, he runs a digital media start-up as CTO.

He truly believes that start-ups are open fields for new technologies and functional-programming languages such as Scala and Clojure.

Jon Vlachogiannis is a Senior Executive with a track record of more than 15 years of successfully managing complex, high-risk, high-value projectsfrom conceptualization through implementation, launch, and product development.

When not giving tech presentations around the world, Jon uses C and Erlang to design and build databases for Big Data analysis, specializing in processing enormous amounts of data in real time.

He designed LDB that powers his mobile data analysis companyBugSenseand processes real-time data from more than 520 million mobile devices around the world. In his spare time, he creates programs that create programs and music in Clojure such as music-as-data, and runs algorithms on FOREX (mostly HFT).

Jon started programming at the age of eight. He has worked for and with leading companies and agencies in the public and private sectors including P&G and NATO. His contributions range from photorealism algorithms to digital signage to geocoding applications to highly-scalable distributed systems.

Jon can also be found teaching Python to the United Nations in order to identify nuclear explosions, running an algorithmic fund for start-ups, or skating around the globe.

Arthur Ulfeldt has been an enthusiastic member of the Clojure community since shortly after the language was released, and he works with Clojure full time on both web development and infrastructure projects. He is a frequent speaker at various Clojure User Groups and devotes a great part of his time to helping people learn Clojure.

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