Engineer 1 Interview Questions

3,932 engineer 1 interview questions shared by candidates

"How would you manage state in a dynamic form where fields can be added or removed on the fly?" "Can you explain the difference between useMemo and useCallback, and when you would use them in a React app?" "How does the JavaScript event loop work, and how would you explain async/await in terms of promises and execution order?"
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SDE-1 (Frontend)

Interviewed at scalereal

4.5
Aug 1, 2025

"How would you manage state in a dynamic form where fields can be added or removed on the fly?" "Can you explain the difference between useMemo and useCallback, and when you would use them in a React app?" "How does the JavaScript event loop work, and how would you explain async/await in terms of promises and execution order?"

Binary Tree Maximum Path Sum : A path in a binary tree is a sequence of nodes where each pair of adjacent nodes in the sequence has an edge connecting them. A node can only appear in the sequence at most once. Note that the path does not need to pass through the root. The path sum of a path is the sum of the node's values in the path. Given the root of a binary tree, return the maximum path sum of any non-empty path.
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SDE 1

Interviewed at Sprinklr

3.5
Jun 25, 2022

Binary Tree Maximum Path Sum : A path in a binary tree is a sequence of nodes where each pair of adjacent nodes in the sequence has an edge connecting them. A node can only appear in the sequence at most once. Note that the path does not need to pass through the root. The path sum of a path is the sum of the node's values in the path. Given the root of a binary tree, return the maximum path sum of any non-empty path.

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