Senior Front End Engineer Interview Questions

2,005 senior front end engineer interview questions shared by candidates

(Same as another reviewer described) The technical challenge was a variation of leetcode merge interval. The FIRST part is easy. After that they gave a more complex variation of the problem, with arrays nested 3 levels deep.
May 7, 2025

(Same as another reviewer described) The technical challenge was a variation of leetcode merge interval. The FIRST part is easy. After that they gave a more complex variation of the problem, with arrays nested 3 levels deep.

In a large-scale Angular application, how would you design a reusable and performant state management solution for a dynamic, multi-step form wizard that supports lazy-loaded modules, real-time validation, and persistence across route changes? Discuss the architecture, including the role of RxJS, Angular services, and any state management libraries (e.g., NgRx), while addressing potential performance bottlenecks.
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Senior Front End Developer

Interviewed at Scrumconnect

4.5
May 6, 2025

In a large-scale Angular application, how would you design a reusable and performant state management solution for a dynamic, multi-step form wizard that supports lazy-loaded modules, real-time validation, and persistence across route changes? Discuss the architecture, including the role of RxJS, Angular services, and any state management libraries (e.g., NgRx), while addressing potential performance bottlenecks.

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