Initially, I met with a young technical recruiter to assess my skills fit with the role; there did seem to be a good match, so I moved on to the next step. I was delighted to be given a take-home coding challenge in the form of a calendar scheduling problem, with instructions to add good documentation about my solution, and to use the programming language of my choice. Having the luxury to take a few days to work on the problem, I discovered the solution difficulty and decided to apply OOP and TDD principles while opting for an unconstrained and extensible solution of production quality. After my code submission, I met with two "senior developers" on a Zoom call, to review my code solution. They began by asking me to walk through my solution, so I guided them through my code organization. I pointed out that I included simple UML class and object diagrams, to which they admitted having not seen before the call. Given a short amount to time for the discussion (30+ minutes), they honed in on the one method that essentially solved the problem. They made some simpleton comments about the class method doing more than it could have (single responsibility?) and that the method name wasn't clear (to them). I asked them about my choice of using a well-known built-in timestamp object, of which they were not familiar. I asked them about how I exposed instance variables, to which they replied "that was good" (which it is not). I spent a lot of time writing unit tests, which drove my solution; for which there was no review or discussion about why or how I wrote the tests. It was apparent that the seniors did not look at my solution in advance or execute the code (against their supplied data sets), to be able to have a cogent discussion about my solution. They were not vested in the code challenge that was originated by a past developer. What the interview did expose was, that there was not a cultural fit with the two senior developers (which could have been discovered in an initial interview). I soon received a very brief email stating that they "will not be moving forward with my application." I did enjoy solving the coding challenge and I learned some useful takeaways about interviews.