Mobile Software Engineer Interview Questions

351 mobile software engineer interview questions shared by candidates

The phone interview question was done via Coderpad and was titled "The Threebonacci Table" For the purposes of this problem, a Threebonacci sequence is a twist on the Fibonacci sequence where you would sum the previous three elements to get the next element. That is, if the Threebonacci function is defined as t, where n is the index of the element involved, t(n) = t(n-1) + t(n-2) + t(n-3). You can assume t(0) = 0, t(1) = 1, and t(2) = 1. With this information, please complete the tableview in the following UIViewController so that each UITableViewCell displays its Threebonacci value corresponding with its row index. An example is as follows: 0 1 1 2 4 and so on so forth.
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Mobile Software Engineer

Interviewed at Coursera

3.7
Oct 20, 2018

The phone interview question was done via Coderpad and was titled "The Threebonacci Table" For the purposes of this problem, a Threebonacci sequence is a twist on the Fibonacci sequence where you would sum the previous three elements to get the next element. That is, if the Threebonacci function is defined as t, where n is the index of the element involved, t(n) = t(n-1) + t(n-2) + t(n-3). You can assume t(0) = 0, t(1) = 1, and t(2) = 1. With this information, please complete the tableview in the following UIViewController so that each UITableViewCell displays its Threebonacci value corresponding with its row index. An example is as follows: 0 1 1 2 4 and so on so forth.

First question I was handed a laptop with Xcode running on it. The assignment was to write a super simple browser app that used substitution (or "regular expression", as the interviewer referred to it) to replace any instances of the word "Nest" with something arbitrary (e.g. I chose something like the name "Glassdoor").
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Mobile Software Engineer

Interviewed at Nest

3.5
Feb 5, 2016

First question I was handed a laptop with Xcode running on it. The assignment was to write a super simple browser app that used substitution (or "regular expression", as the interviewer referred to it) to replace any instances of the word "Nest" with something arbitrary (e.g. I chose something like the name "Glassdoor").

For the systems design question, the guy described a real world scenario where a series of events have to happen in order to fully bring up a device. - auth (to get a token we'll call "A") - fetch info from home + devices (with the A auth token) - fetch current weather information (using the home/device zip code) - reach out to a third party service with our A auth token to exchange, or get, a B token - fetch data from service using B token how would we structure the sequence of events or dependencies to come up with the fastest boot up (or bring up) sequence possible?
avatar

Mobile Software Engineer

Interviewed at Nest

3.5
Feb 5, 2016

For the systems design question, the guy described a real world scenario where a series of events have to happen in order to fully bring up a device. - auth (to get a token we'll call "A") - fetch info from home + devices (with the A auth token) - fetch current weather information (using the home/device zip code) - reach out to a third party service with our A auth token to exchange, or get, a B token - fetch data from service using B token how would we structure the sequence of events or dependencies to come up with the fastest boot up (or bring up) sequence possible?

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