Applied Online. A recruiter from Mozilla contacted me about a different position that they wanted me to interview for instead. On Monday, I had a phone screen with that recruiter, where they asked me to please let them know / keep them updated on my search outside the organization because they wanted to avoid getting ghosted. Seemed a little strange to me, but I guess this happens with in-demand candidates? That recruiter set up a call with the hiring manager the next day. On Tuesday, I had a pleasant conversation with the hiring manager, talking about why I would want to work there, my previous experience, etc… Pretty generic behavioral questions. The expectation was that then I'd be given a technical screener, and move on to a final round interview. The hiring manager spoke to me as though I were already on his team. On Wednesday, I received the technical screen via Coderpad.io, and completed it well under the deadline. Following completion of the assessment, I sent both the recruiter and the hiring manager a follow-up email to let them know I had completed it. In addition, I also let them both know I already knew how to solve the problem ahead of time. As it was a common DSA question I'd actually had in a previous interview, I wanted to give them the opportunity to give me a different problem that was perhaps a better test of my ability. I never got a response, and two weeks later I received a generic rejection email stating I did not perform well on the technical assessment, sent from a Mozilla 'noreply' email. Disappointingly, I learned Mozilla is not quite as dedicated to transparency and open communication as they claimed in our interviews. Every part of the process was positive until the end, where they ghosted me after asking me explicitly not to act in that way towards them. Adding on to that disappointment, they offered no actual reason as to why they decided to decline to continue the interview process (because I know I answered the question with optimal Time and Space complexity).