Purple squirrel
Recruiting slang for a candidate who matches every requirement in a job description perfectly.
What it tells you about a developer
A search that truly demands a purple squirrel runs long and ends in a candidate-driven negotiation. More often, showing the pool size wins permission to drop the weakest requirements, and the search opens up.
The term captures how rare a perfect multi-requirement match is, especially when a job description spans two disciplines. A purple-squirrel hunt can burn weeks of sourcing before anyone questions the spec. The professional move is to size the real pool early and bring that number to the hiring manager.