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Senior Mobile Engineer Interview Questions

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215 senior mobile engineer interview questions shared by candidates

The process was pretty complex and it was simplified a bit since then, and it was pretty impressing. They don't do any silly gotcha coding questions. They do test basic CS fundamentals pretty heavily, but they are smart about it. Mobile platform questions. Simple coding question in Java, Objective-C and C++, questions about platform API (basics to check if you really code in it), and multithreading concepts. Take home assignment - optimization problem (I believe they don't do it any more) with elements of OOD. On-site coding round (leetcode style puzzles, basic CS concepts, data structures, threading, memory management, code review). On-site design round. Designing complete mobile app, frontend and backend (architecture, no visuals). Discussing various constraints, changing requirements as you go, to check if your design is adaptable. On-site company culture fit round with manager. HR round with compensation expectations. On-site team culture fit round with direct team lead.
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Senior Software Engineer (Mobile Applications)

Interviewed at Bloomberg

4★
Dec 21, 2021

The process was pretty complex and it was simplified a bit since then, and it was pretty impressing. They don't do any silly gotcha coding questions. They do test basic CS fundamentals pretty heavily, but they are smart about it. Mobile platform questions. Simple coding question in Java, Objective-C and C++, questions about platform API (basics to check if you really code in it), and multithreading concepts. Take home assignment - optimization problem (I believe they don't do it any more) with elements of OOD. On-site coding round (leetcode style puzzles, basic CS concepts, data structures, threading, memory management, code review). On-site design round. Designing complete mobile app, frontend and backend (architecture, no visuals). Discussing various constraints, changing requirements as you go, to check if your design is adaptable. On-site company culture fit round with manager. HR round with compensation expectations. On-site team culture fit round with direct team lead.

Programming exercise was good- you had 1:15 hr in XCode to write a simple iOS application with data persistence, implement a shake motion gesture, localize it into french and spanish, and ensure the UI resized correctly. Then you had to write the test cases for your app. All told if you knew what you were doing you should have the basics done in under an hour. From there you can spend the rest of your time making the UI pretty.
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Lead/Senior Software Engineer, IOS Mobile Applications

Interviewed at Salesforce

4.1★
Jun 14, 2013

Programming exercise was good- you had 1:15 hr in XCode to write a simple iOS application with data persistence, implement a shake motion gesture, localize it into french and spanish, and ensure the UI resized correctly. Then you had to write the test cases for your app. All told if you knew what you were doing you should have the basics done in under an hour. From there you can spend the rest of your time making the UI pretty.

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