What do you call a person who makes easy things difficult?

What you you call a person that can take a simple, easily understood concept or task and turn it in to a complicated procedure?

Solution 1:

According to at least two online dictionaries, "complicator" is a real word that might help.

Even if it isn't in the Oxford dictionary (yet), we can make it so. Such is the nature of language.

Solution 2:

obfuscator

one that obfuscates

where obfuscate means

to make (something) more difficult to understand

This is often used in the context of intentionally making something more confusing rather than doing so through incompetence, but it wasn't clear from your question which side of that aspect you wanted.

Solution 3:

I'd suggest,

overthinker

One who overthinks.

overthink: to think or analyze too much. Wiktionary

beanplater

beanplate: Slang to overthink DefiniThing