Zensciences interview questions

The initial round was a telephonic conversation with HR, followed by a second round that involved an unpaid and time-consuming assignment comprising four different tasks. In the third round, I met with the technical team, where they provided feedback on my assignment. Although I cleared all the rounds successfully, I was informed afterward that they didn’t have any work to offer. Unfortunately, the entire process ended up being a waste of time for both sides.

They told to submit assignment and said that they would get back after reviewing it. But many days went and didn't get any call back from them. When sent mail, they just said you are not slected. Waste of time, they don't hire people based on your works.