My definition of junior is "an engineer who can't complete start-to-finish general tasks alone". To unwrap it, it both requires certain knowledge and working e

My definition of junior is "an engineer who can't complete start-to-finish general tasks alone". To unwrap it, it both requires certain knowledge and working experience which certainly couldn't be quantified in years (e.g. my current employee had a 21 y.o. lead developer on a certain system who had a 5 years of directly relevant experience hence the role).