Specifically where instrumentation means "the use or application of instruments (as for observation, measurement, or control)". Is there a word to describe someone who performs instrumentation?
I tried looking up instrumentor
, for which I did not find anything, and instrumentator
, which according to Merriam-Webster means
one that arranges a musical score for performance by a specific group of instruments
instrumentator
in any musical sense whatsoever… no matter what Merriam Webster may say. You really need to define what you mean by "performs instrumentation" because an instrument is not only something musical, it could be computing, scientific or other measuring apparatus.