Holger Brunn has been a fervent open source advocate since he came in to contact with the open source market sometime in the nineties. With an academic background in philosophy and sociology, he turned his interest to generalized logic, which proves helpful in many aspects of his IT work. Turning into a professional programmer was a side effect of his hobbyist interest, combined with a part-time job with a very open-minded mentor to whom he owes a lot of gratitude.
He has programmed for ERP and similar systems in different positions since 2001. For the last eight years, he has dedicated his time to TinyERP, which became OpenERP and evolved into Odoo. Currently, he works at Therp BV in the Netherlands as a developer and is an active member of the Odoo Community Association (OCA). He's most interested in fundamental work on technical modules, but also enjoys contributing to other projects, with a focus on UI and website widgets, CRM, and knowledge management.
Alexandre Fayolle started working with Linux and free software in the mid 1990s and quickly became interested in the Python programming language. Between 1999 and 2012, he helped manage Logilab, a company he cofounded, he specialized in Python development, and had the opportunity to work on projects for large companies such as EDF, Arcelor-Mittal, and GdF Suez (now Engie) using the Cubicweb framework.
He also tackled fun projects involving machine learning, natural language processing, and multi-agent systems. In 2012, he joined Camptocamp to share his expertise on Python, PostgreSQL, and Linux with the team implementing Odoo (OpenERP at the time). He currently manages projects for Camptocamp and is strongly involved in the Odoo Community Association. In his spare time, he likes to play the vibraphone in a jazz quartet, but has recently been known for writing a book about Odoo, which he hopes you'll enjoy.
Daniel Reis has been working in the IT industry for over 15 years in developer, consultant, and management roles. Most of this work was at the Capgemini multinational consultancy firm, implementing proprietary business solutions for reference companies in a variety of sectors, such as industry, telecommunications, and banking. Daniel has a BSc in applied mathematics and a master's in business administration from the ISCTE Business School.
He's worked with Odoo solutions (formerly OpenERP) since 2010, and he is an active contributor in the Odoo community association projects. He has been a speaker at the Open Days annual conference and other open source events. He is the author of the first Odoo development book: Odoo Development Essentials, also by Packt Publishing.
He currently works at Securitas, the global security services company, where he has introduced Python, Odoo, and other open source solutions into the company's IT applications portfolio.