Nitin Kumar works as a Software Architect , predominately focus on Agile, TDD, Service Oriented Architecture, Grails and JEE. Besides working in software development, He writes technical articles and watch and study new technologies. He has been in IT for over 13 years and advocating on Craftsmanship, Domain driven development, TDD, Refactoring , Pair-Programming and lean development. He has expertise in high performance Java system and contributed to various open source projects.