Don’t use edge cases or niche anything. Expect a senior to provide original solutions to problems. If you want to be very specific determine the level of hand

Don’t use edge cases or niche anything. Expect a senior to provide original solutions to problems. If you want to be very specific determine the level of hand holding the developer requires. * Can they do the job without a giant framework and a billion build tools? * Can they interpret and refactor other peoples code? * Can they write documentation? * Can they objectively consider evidence based approaches to code decisions? * Can they distinguish product quality from developer convenience? Consider that a good mid level developer is at the top of the bell curve. They know all the latest trends and fashions. They have probably mastered things important to beginners. A good senior has learned to leave all that nonsense behind to produce simpler code more productively.