My interview process started well, but ended up seeming to be a bit of a bait and switch with tech screenings required for languages not listed in the job description. I had great initial conversations with the hiring manager and recruiter, followed by a successful simple tech screening. After those first three rounds, they scheduled me in for a 5-hour day with two tech screenings and three interviews. I noticed that one of the tech screenings was for a language not listed in the job description or my resume and brought it up. It was promptly changed to a tech relevant to the job. Unfortunately the second interview turned out to also be in a tech not mentioned on the job description. That screening poorly--not a surprise because I've never worked with the tech and wasn't prepared at all. In the end I was rejected because they feared I wouldn't be ready to hit the ground running. Failing job interviews happens, but it's frustrating to miss out on what seemed like a promising opportunity over a tech screening with no relevance to the role. The initial people I dealt with seemed like really stand up people, but I was left with a bad taste in my mouth. To the recruiting team: Please consider being honest with your recruits. If you require a tech, just say so and save everyone a lot of time. To potential interviewees: Make sure you know Python, even if it's not in the job description. It seems to be part of their standard screening process.