Markus Jelsma is CTO and co-owner at Openindex B.V., a Dutch company specializing in open source search and crawl solutions. As a committer and PMC member of Apache Nutch, he's an expert in search engine technology and web crawl solutions.

Jesse Estill Lawson is a computer scientist and social science researcher who works in higher education. He has consulted with dozens of colleges across the country to help them design, develop, and deploy computer information systems on everything from Windows and Apache to Nginx and node servers, and he centers his research on the coexistence of data science and sociology. In addition to his technological background, Jesse holds an MA in English and is currently working on his PhD in education. You can learn more about him on his website at http://lawsonry.com.

Daniel Parraz is a Linux systems administrator with 15 years of experience in high-volume e-retailer sites, large system storage, and security enterprises. He is currently working with a managed services provider, where he is responsible for all aspects of Unix-like systems in the organization. Daniel was also a technical editor for Learning Nagios 4, Packt Publishing, and has co-written training material for the IBM DS8000 storage server.