In a nutshell: a complete waste of time, no feedback, and not nice people.

I was approached by their internal recruiter on LinkedIn. They were looking for someone with (mainly) Java knowledge. I made it clear it wasn't my expertise, but I've used it, I can pick it up, and I am willing to learn. The recruiter said that was fine.

The first round was a remote coding interview. I was asked what language I wanted to use, and I chose the one I use on a daily basis. Information got lost, however, because I was given two tasks written in Java. The interviewer told me I could either solve them in my preferred language (but would have to change the code myself) or postpone the interview. I chose the former. The tasks weren't difficult.

They got back to me saying they wanted me to do the coding interview again in Java. I said that was fine, but I wasn't happy. The earlier round was a waste of time after all. I prepared for the interview and managed to solve the tasks again.

They invited me for an on-site interview. I had to chase them about it because they were so slow finding a date. I was told the on-site interview had four sessions, 4x 1-hour, so I took an entire day off from work.

During the first session, I was asked about Hashtables and Java concepts. It wasn't difficult, but as Java isn't my day-to-day language, I must have said some suboptimal things.

I felt the second session went much better. It was more about my expertise and what I am good at.

Here comes the catch: right after the second session, someone came into the room and said that was it for today; we'll be in touch. No details, no reasons, or whatsoever. I pretty much think they just cut it off based on the first session.

The next day, I received a macro email saying they were not moving forward with my candidacy. I didn't get any personalized comments.

I invested time in the process, so I asked for some feedback, but received no response.

How can you handle service failure in a microservice architecture?