Two weeks ago, I was contacted from a "Senior HR" Rep from Postmates with a form email saying they think I'd be a good fit, please take this data test as a first step, etc." You start off with a mock Data project - the goal being a test of your data analysis, visualization, data manipulation, and data optimizing skills. The project was actually very fun and not too time-intensive. (~4 hours) I handed the project in and never heard back from them. I sent a total of 3 emails over the course of two weeks to this HR rep who never responded, so I started to get a little suspicious and concerned. So I came here to Glassdoor and unfortunately saw a bunch of people shared my same EXACT experience. Just after researching here, I started to assume I wouldn't hear back or be given a rejection without explanation and sure enough - this week the rejection email finally came. They reach out, they get you to do the project, they ignore all communication, they make their decisions and if you are rejected, you will not receive a word of context or explanation. I personally am a tech and data professional with 10 years experience, former Project Manager in Big Tech companies, and former Head of Business Intelligence for a Tech Start Up. Unfortunately, this low level of professionalism is par for the course in the tech industry. My advice? Ignore any "potential opportunities" from this type of company and never forget that you don't have to accept this treatment from ANY company. If it happens once? That's unfortunate. If it happens a few times? That's suspicious. If it happens so often that your exact experience is echoed by dozens of other reviewers? It's their company culture. Skip them.