Arturo Borrero González has been working in the IT environment for almost 5 years now, always with Linux systems.
He is interested in networking and high availability clusters.
For the last 3 years, Arturo's job has been in Centro Informático Científico de Andalucía (CICA), the regional National Research and Education Network (NREN) of Andalusia (Spain). There, he does system administration for the Network Information Security department.
He loves Debian and free/open-source software.
Currently he is collaborating with the Netfilter project. Also, he's trying to get his degree in IT engineering at the University of Seville.
Daniele Raffo has been a happy Linux user since the mid-1990s, and now an LPIC certified Linux Professional. Holder of a Ph.D. in Computer Science and former CERN civil servant, he also has experience in the fields of networking, security, and Java programming. He is the lead author of the official Handbook for Enigmail, the OpenPGP plugin for Mozilla applications.
Ron Savage is a semi-retired programmer who has been writing software in Perl for a number of decades.
He has a degree in mathematics (astrophysics), but has always worked as a programmer.
He has found that, even using Perl, he still has to write a lot of Bash, SQL, JavaScript, HTML, and CSS to design and build databases for servers such as Postgres.
Nevertheless, while writing Perl he's had great fulfillment, and endless opportunities for expressing creativity, and has enjoyed almost every single day's work. Yes, even the hard days.
He's always worked as a self-employed contractor, and has encountered a fascinating range of work. Some instances are:
At BHP (an Australian mining corporation), they bought some American 'Star Wars' technology which fired radar straight down from a plane into the sea, searching for Russian submarines. BHP adapted it to search for seams of minerals (on land), aimed down from a wooden glider towed by a (metallic) plane, and that required processing vast amounts of data, and new ways to visualize such data.
At Telstra (the dominant Australia-wide communications company) he wrote a lot of code to help maintain about 15,000 network routers scattered across the country, and which carry almost all Australian phone and Internet sessions.
Another contract was a pair of search engines written for Monash University, based in Melbourne. One is used by staff and students, and the other is dedicated to the telephonists. The latter uses the same database as the former, but also communicates with a number of PABXes.
Currently, he's working with Peter Stuifzand (in the Netherlands) on a short book called The Marpa Guide. Marpa is a recent, and astonishing, generic lexer and parser written by Jeffrey Kegler.
He also writes fiction and autobiographical works.