Worst interview I ever been. Started from coding exercise . Which was understandable and adequate. But then, catastrophe. Some guys presented himself as 'architect' was starting absolutely senseless questions. Example: You have service (writes word 'Service' on board). You have (describes CRUD in http requests). How to achieve efficiency O(1) for all operation at the same time 'cleaning' memory after removal? Asking - what kind of service? what kind of model? range of identifiers - does not help. And another questions like that - without ANY requirements or explanation, clarifications. 'Some service'. 'Some e-shop'. WOW. Another one: person writes 3 methods on board. Quesion: How to run them sequentially? (most ridiculous: calling sequentially? delegates? fluent api? expressions? threading? WHAT??) I thought we would talk about architecture, threading, frameworks. But instead we ended up with questions about c# syntax ( '==' operator and how in .net 1 properties were presented). Weird. WOW. Based on this ridiculous conversation interview was ended without even having chance to speak to other guys. Killed 3 hours of my life. AVOID.