Events & Symposium - Symposium - 2018 - Speakers



Speaker Gil Barmwater - <vicepresident (at) rexxla (dot) org>
Credentials Gil Barmwater is an independent computer consultant who has been using Rexx since it first became available within IBM more than 25 years ago. In addition to programming Rexx in the mainframe environment, he has been developing Rexx solutions on OS/2 and multiple versions of Windows for the past ten years.
He is the Vice President of the Rexx Language Association and is a member of the Symposium Planning Committee.

Speaker Rony Flatscher - <rony.flatscher (at)>
Credentials Rony works as a professor for Business informatics ("Wirtschaftsinformatik") at the Vienna University of Economics and Business Administration (Wirtschaftsuniversität Wien) and uses Open Object Rexx for teaching Business Administration and MIS students the object-oriented paradigm, as well as remote-controlling (automating) Windows and Windows end-user applications (e.g. MS Office, Open Office) as well as Java and Java applications.

Speaker Virgil Hein - <vhein (at)>
Credentials Virgil has been with IBM for 38+ years working in software development. In his current position as an IBM Business Manager he is responsible for all facets of a set of mature technology products. This includes responsibility for strategy, business management, development, marketing, sales, service, and support. Main products include Office Vision products, BookManager, REXX, and OS/2. In this position the main goals are focused on maintaining/increasing customer satisfaction, supporting customer efforts to migrate to follow-on solutions, and finding creative means of increasing mature/growth product revenue. As the product owner for the IBM REXX Compiler, Virgil is closely involved with a variety of REXX activities both inside and outside of IBM.

Speaker René Vincent Jansen - <rvjansen (at)>
Credentials René has used Rexx since it appeared in TSO Extensions in the second half of the eighties when he was a systems programmer at the Central Bank of The Netherlands. He is an independent consultant since the turn of the century, specializing in models and meta models in order to rationalize data governance and model driven development. He likes to program in any language as long as it's Rexx.
He currently is the President of the Rexx Language Association and is a member of the Symposium Planning Committee.

Speaker Jason Martin - <agrellum (at)>
Credentials Jason Martin first touched a mainframe at Virginia Tech while participating in the Upward Bound program in the early 80's. He went on to learn basic on the TRS-80 Color Computer and Atari 800XL. When he started writing his own software for Intermec hand-helds at his job in a warehouse, He was promoted to the IT department where he coded and did desktop plus hardware support for 15 plus years. He immediately saw the value of OS/2 over the other choice in 1995. He moved to Linux about 1996 and never looked back. He has seen lots of software and hardware since. Rexx has been the only language that was ever done right from the start.

Speaker Alexander Seik - <h1051861 (at)>
Credentials Alexander is a student of Prof. Flatscher and currently works as a full-stack developer. He is proficient in Java and wants to add well established and useful tools from the Java world to the ooRexx community.