Qualifications:

PhD/MSc Computer Science (Dr.rer.nat/Diplom Informatik),

Background:

research and development in (declarative) programming languages
(language design and implementation, tool development, programming techniques)
experience with multiple programming paradigms
(including functional, non-sequential, logic, object-oriented, procedural)
experience with multiple language families
(including general-purpose/domain-specific, statically/dynamically typed, visual/textual, modelling/programming/scripting languages)

Things I've done

Among other things, I have

Software development:

Javascript/TypeScript/Haskell preferred, other languages on request