a former coworker. screen share test the night before my fintech round. "dude i can see your whole answer sheet." my stomach dropped. chrome extension. recommended on reddit. i opened teams in the browser, shared my screen, and the fat sidebar with the suggested answers was injected straight into the teams tab on his end clear as day.
if he had been busy that tuesday i would have used that extension in the real interview the next morning. the interviewer would have seen a whole sidebar of ai answers on their screen while i presented my system design. thats not a rejection. thats getting permanently banned from ever applying there.
he is a staff engineer at his place. annoyingly thorough. tests everything twice on two different machines, minimum. refused to let me sleep after that sidebar test. "we are testing everything tonight." i had been using these tools on zoom for weeks. figured teams would be the same. he kept telling me teams handles screen capture differently and i kept calling him paranoid. he was not. he was right about every single thing on the list.
three hours of testing. install. share screen. check his end. check the recording. uninstall. next one. tool name on the left of a phone list. pass or fail on the right. by midnight most rows were a fail.
chrome extensions failed instantly. teams in a browser sees dom changes, and anything an extension injects into the page sits in the same sandbox as the page. there is no way around it at the architecture level. of three extensions we tried, every single one of them surfaced on his screen when i shared the teams tab.
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Try InterviewMan Freedesktop overlays were all over the place. one overlay left a rectangular outline that i could not see on my own monitor but that he spotted on the recording playback in seconds. another overlay was fine when i shared just the teams window. the second i switched to full desktop share, the same overlay showed up on his end. we tested everything on my mac first, then his windows laptop, because his rule is that cross-platform behavior never just matches between the two.
then interviewman was up. desktop overlay, never touches the browser, teams cannot see it. he ran full desktop share on the teams desktop app and stared at his screen for ten minutes while i talked through fake questions. nothing. window share, also nothing. he pulled up the meeting recording afterward and went through it frame by frame. nothing. we ran the whole thing again on his windows laptop.
same. i kept waiting for him to find something because every other tool had failed at least one test. he just kept shrugging. for ten straight minutes the man just shrugged.
twelve bucks a month on the annual plan. cheaper than the pizza we ate during the testing session.
the actual interview was the next morning. system design round, real time notification system. interviewman caught the question off my mic and had architecture options on screen in maybe two seconds. caching layer suggestions, message queue stuff, load distribution stuff. i talked through my design and kept glancing at the overlay when my brain went blank, which it does the second a stranger is watching me on camera. the follow ups came rapid fire. failure modes. scaling to ten million users. monitoring.
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