Hi. I'm an expert in compiler and programming language design, currently working as a CTO at Lokad on our in-house programming language, Envision.
A few things I've said or written :
Midgard, an Intermediate Representation optimized for rewriting (2017-11-21)
Context-free and parsing expression grammars (2017-11-10)
Creating and using your own programming language (YouTube, 2017-07-09)