Jon “maddog” Hall

Jon “maddog” Hall
  • CEO - OptDyn LLC (USA)
  • Company: Linux International

Jon “maddog” Hall is the Chief Executive Officer for OptDyn LLC, the creators of Subutai, a federated, peer-to-peer cloud platform ( During his career in commercial computing which started in 1969, Mr. Hall has been a programmer, systems designer, systems administrator, product manager, technical marketing manager, educator and consultant.

Mr. Hall has worked for such companies as Western Electric Corporation, Aetna Life and Casualty, Bell Laboratories, Digital Equipment Corporation, VA Linux Systems, SGI and Campus Party. He currently works as an independent consultant, and is involved with bringing environmentally friendly computing to emerging marketplaces, as well as working on performance and educational issues with Free and Open Source Software via Linaro.

Mr Hall has worked on many systems, both proprietary and open, having concentrated on Unix systems since 1980 and Linux systems since 1994, when he first met Linus Torvalds and correctly recognized the commercial importance of Linux and Free and Open Source Software. Mr. Hall formulated the first commercial association for the promotion of GNU/Linux (and later Open Source) as business solutions.

Mr. Hall has taught at Hartford State Technical College, Merrimack College and Daniel Webster College. He still enjoys talking with students over beer and pizza (the pizza may be optional).

Mr. Hall is the author of numerous magazine and newspaper articles, many presentations and one book, “Linux for Dummies”. He currently writes a monthly article for Linux Pro Magazine and occasionally blogs for them on their web site.

Mr. Hall has consulted with the governments of China, Malaysia and Brazil as well as the United Nations and many local and state governments on the use of Free and Open Source Software. Mr. Hall has presented at thousands of symposium in over a hundred different countries around the world.

Mr. Hall has served and serves on the boards of several companies, universities and several non-profit organizations. He is currently very active with the University of Sao Paulo’s Centro Interdisciplinar Em Tecnologias Interativas (CITI), acting as a member of their advisory board. He is currently the Chair of the Board of Directors for the Linux Professional Institute, a Canadian non-profit that certifies Open Source professionals.

Mr. Hall received his BS in Commerce and Engineering from Drexel University (1973), and his MSCS from RPI in Troy, New York (1977).

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