Piotr Filipowicz is a Liferay architect and senior developer at eo Networks S.A., Poland. He is an expert in content management systems (CMS). Piotr currently holds the position of team leader in a group involved in developing Liferay-based software. His accomplishments in enhancing and creating various Liferay components are evident from his various successful implementations. His experience and knowledge are supported by certificates such as Liferay Portal Administrator, Sun Certified Web Component Developer for the Java Platform, and Sun Certified Programmer for the Java 2 platform. Piotr is also one of the founders of the www.liferay-guru.com blog, which contains a lot of information on Liferay and the CMS world. Since 2002, he has created various kinds of IT systems, ranging from desktop applications to CMS applications, supporting large banking and financial systems. His main area of interest is web applications. Piotr uses Java and J2EE technologies on a daily basis, but he is open to learning other technologies and solutions. He holds a master's degree in software systems from Bialystok University of Technology, Poland.