Jaroslaw Krochmalski is a passionate software designer and developer who specializes in the financial business domain. He has over 12 years of experience in software development. He is a clean-code and software craftsmanship enthusiast. He is a Certified Scrum Master and a fan of Agile. His professional interests include new technologies in web application development, design patterns, enterprise architecture, and integration patterns. He has been designing and developing software professionally since 2000 and has been using Java as his primary programming language since 2002. In the past, he worked for companies such as Kredyt Bank (KBC) and Bank BPS on many large-scale projects such as international money orders, express payments and collection systems. He currently works as a consultant in Danish company 7N as an IT architect for the Nykredit bank. You can reach him via Twitter at [...] or by e-mail at [...]. I would like to say hello to my friends at 7N and Nykredit, keep up the great job!