I have been mostly a Common Lisp developer since 1982 (probably 30% professional work, the rest of my paid for time split between Java, C++, Python, Prolog, and Ruby).

About three years ago I was very enthusiastic about Julia becoming my primary language because so much of my work was in deep learning. I created a small repo of examples using Julia for non-numeric stuff like string processing, SPARQL query client, etc. Julia was pretty good all around.

What kept me from adopting Julia was realizing that Python had so many more libraries and frameworks. Right now, I split my time between Common Lisp and Python.