Managing director (responsible for XML technologies and business development) at le-tex publishing services GmbH, a premedia, systems integration, and XML consultancy company of approx. 190 people. Expert in XSLT 2.0+, XProc, Schematron, Relax NG and several common XML vocabularies such as DocBook, TEI, and JATS/BITS/STS. Editor of the XProc 3.0 spec, member of the NISO STS standing committee. Contributor to the open-source conversion/checking framework transpect.
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