Pierpaolo Cira is a Liferay Certified Professional Developer and has been working as a software developer, software architect, and system integrator since 2001.

He has been involved in many e-business, knowledge management, e-learning e-tourism, brand monitoring, and business intelligence research projects at the University of Salento in collaboration with companies such as Oracle and IBM on several research projects. He also collaborated on the design and development of the first implementation of the OMG SBVR editing tool. He reviewed Android Apps with Eclipse, O. Cinar, Apress 2012. He has been working on several enterprise web applications based on Liferay Portal and Alfresco ECM, such as web portals, intranets, and document management systems, for public administrations and big companies.

Currently, he is a consultant on Liferay Portal and Big Data technologies and solutions.

He can be found on Twitter at @pierpaci.

Zoltán Fiala leads a competence center for software development at adesso AG in Hamburg, Germany. He holds a PhD in web engineering from Dresden University of Technology and has worked as a SharePoint and Liferay architect and project manager for several IT consultancy firms in the past. Zoltán has significant experience in the design and development of web content management and portal solutions. For more information on Zoltán, refer to http://www.z-fiala.net.

Giuseppe Urso is a software engineer with 10 years of extensive working experience in the design and agile development of service-oriented applications and distributed systems based on Java SE and Java EE. He works in the IT industry as a senior systems architect and Java developer, handling responsibilities involving architecture design and the implementation of several large-scale projects based on Alfresco ECM and Liferay Portal. His major areas of expertise include Amazon Web Services (AWS), Elastic Compute Cloud (EC2) technologies, and Message-oriented Middleware. Giuseppe earned his master's degree in computer engineering at the University of Salento, Italy. He is a licensed engineer and member of the Professional Engineers Association called "Ordine degli Ingegneri della Provincia di Lecce". He is an Alfresco certified administrator and committer on the Alfresco-SDK project. As an open source enthusiast, he runs a personal blog at www.giuseppeurso.eu, where he writes articles and useful guidelines on Java, Alfresco, Liferay, and practices of GNU/Linux systems administration.