Senior Ios Engineer Interview Questions

2,086 senior ios engineer interview questions shared by candidates

1. Intro about yourself 2. Generic 3. Protocols 4. Difference between struct & classes when to use struct and class 5. Protocol oriented programming 6. Storyboard or creating UIView programatically in large project 7. Why multiple inheritance not allowed in swift 8. variadic parameter - 3 dots 9. GCD 10. Can we use protocols in Struct 11. Optional protocols 12. CI/CD pipeline 13. Swift vs obj c 14. Autorelease pool 15. Size Classes 16. Strong and retain 17. Explain Protocol Vs Class 18. convenience initializer 19. advantages of inheritance 20. Property 21. concurrency
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Senior IOS Developer

Interviewed at Tata Consultancy Services

3.5
Feb 25, 2023

1. Intro about yourself 2. Generic 3. Protocols 4. Difference between struct & classes when to use struct and class 5. Protocol oriented programming 6. Storyboard or creating UIView programatically in large project 7. Why multiple inheritance not allowed in swift 8. variadic parameter - 3 dots 9. GCD 10. Can we use protocols in Struct 11. Optional protocols 12. CI/CD pipeline 13. Swift vs obj c 14. Autorelease pool 15. Size Classes 16. Strong and retain 17. Explain Protocol Vs Class 18. convenience initializer 19. advantages of inheritance 20. Property 21. concurrency

- Recruiter Screening: - General questions about experience & why Duolingo. - Sr. Engineer Tech Screening - Shared playground project and asked to implement problem-related to encrypt & decrypt => string matching.
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Sr. IOS Engineer

Interviewed at Duolingo

4.2
Feb 13, 2023

- Recruiter Screening: - General questions about experience & why Duolingo. - Sr. Engineer Tech Screening - Shared playground project and asked to implement problem-related to encrypt & decrypt => string matching.

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