Someone in an IT department who is a condescending wanker that spends weeks studying the most simple of problems, produces a pretty colour picture, and tries to preach as to how something should be done. Usually they are entirely wrong.
Solution Architect: I’m the Solution Architect.
Everyone else: You’re a dickhead.
The person or employed by your organisation to wade through your bullshit and translate it into layman's terms
<Layman 1> This solution actually makes sense!
<Layman 2> That's unusual. I wonder how that happened
<Solution Architect> My job is done! *exits building*
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.