I was on the hook with recruiting and the hiring manager for 3 months before the role was ready for interview. The standard interview included culture fit, systems design, iOS knowledge test, and a live coding exercise. This occurred over the course of four hours, ending at nearly 9 p.m. on the East Coast with just one brief break after the first of the four sessions.
The live coding challenge was to build a simple JSON parsing app that would display and sort content. I was explicitly told to go ahead with "anything you'd use day to day" at this part by recruiting and the interviewer. Being a tenured engineer for a legacy codebase, I hadn't bootstrapped a new project in a minute and went to Google for a refresh on standing up some models with Codable. The interviewer became agitated and warned that using Google wasn't "appropriate" for the interview. I was stunned after being told to use whatever I do in my everyday. Still, I stumbled and managed to get most of the project working but not finished in the timeframe.
I sent a thank-you note with feedback on the interview that they'd asked for since they were rethinking how it's run anyway. I also took a few minutes to correct the mistakes I made in the exercise and sent over the finished project. The rest of the team apparently loved me, but the coding exercise left such a bad taste in the mouth of the one interviewer that she wouldn't budge, so no offer. To this day, it stands out as my most negative interview experience of my career. Such a long process just to be nixed over conflicting instructions.
Fetch, parse, and display JSON data.
Systems design questions around how one would build existing app features.
The following metrics were computed from 1 interview experience for the Calm Senior iOS Engineer role in United States.
Calm's interview process for their Senior iOS Engineer roles in the United States is extremely selective, failing the vast majority of engineers.
Candidates reported having very negative feelings for Calm's Senior iOS Engineer interview process in United States.