MobileIron Interview Questions
& Process

So I had this iOS Engineer role interview. It started with a written test, then four in-person technical rounds, and then one remote technical interview. Each round was about 1-2 hours. The first two were with Android devs, weirdly, for an iOS job. The third was with an iOS dev who was really nitpicky. The fourth interviewer was non-technical, just explaining 'sustainable engineering,' which seems to be app maintenance. The next day, HR called, gave some positive feedback on most areas but said I was weak in others. She wanted to schedule another remote technical round. This sixth interviewer, according to HR, wasn't an iOS dev but was supposed to check technical skills like data structures, though he was pretty rude and didn't really have iOS knowledge. Since it was remote and during work hours, I had to take it at my office, which made me nervous. He immediately asked me to write and execute code. I hesitated because of my office setup. He got annoyed, but then asked again, and I did it. Afterwards, he told me I was technically poor. The whole thing felt like a joke.

I was contacted by a consultant about the position. First, there was an online test with 4 algorithm problems. About two weeks later, I was invited for an in-person interview, which was supposed to have 4 rounds. However, after the second round, the interviewer decided to end it early and let me leave. The first round went well, focusing on multi-threading concepts and implementation, and the interviewer seemed well-prepared. The second round interviewer, however, was not prepared. They reviewed my profile during the interview and asked random Java questions. For example, they asked me to implement ReentrantReadWriteLock, even though I mentioned I hadn't used it, and insisted I try without providing the specific functionality needed. They then covered various Java features, some I'd used years ago and some I hadn't, like Classloader, Serialization, Clonable, and SecurityManager. Even after I answered, they would try to confuse me and sometimes laughed mockingly, which was unprofessional and had a bad attitude. Despite expecting a great interview experience, the second round left a very bad impression, and the interviewer came across as a show-off.

The whole thing took about a month from the first call to getting the offer. I first chatted with a recruiter, then the hiring manager called me. After that, I had two in-person interviews. The manager called again for a follow-up, and then they sent the offer two days later. It was pretty chill and they asked basic stuff about handling tough customers and times I did a good job. They seemed really worried about people not being able to handle the stress of this gig. Everyone I talked to was cool and friendly, seemed like a good group. The only bummer was the recruiter after I got the offer; she got pushy when I didn't sign immediately and was kinda rude asking about the 401k, PTO, and pay.

The whole process was quite fast. An HR person talked about the different teams in the company and which ones I might interview with. They even asked a few basic tech questions. Then there was a technical phone call that mainly checked my Java skills, asking about threads and some straightforward algorithm problems. They set up an onsite interview for the following week, which included five technical sessions. All these sessions focused on data structures and algorithms, and the interviewers were really nice. The people there are technically skilled and also friendly.