We hired him — and plenty of other great engineers after who didn’t pull his stunt.

You never really know what someone will do after they’re onboarded, even if they ace the interviews. When people say he’s a good engineer, they mean he crushed pair programming and skill tests. When he actually showed up, he did good work. Problem was he was juggling so many jobs he was always making excuses as to why he wasn't available. And he wasn’t upfront as to why.

We do reference checks. But when someone kills your interviews, you have to move fast or risk losing them to another offer. Time kills deals - and the best candidates usually get multiple offers. Waiting for every reference isn’t always an option. Most people are ethical, so you trade some risk for speed. In Soham’s case, one reference checked out, the other never replied. A few unaffiliated references said they remembered him from previous stops on the resume but hadn't worked with him directly.

If someone starts making excuses right away or seems off, it’s your job to cut them loose fast. Most companies did just that.