Recent google interview experience for Google Cloud AI engineer role
- Posted
- 22 Oct 2026
Summary
I interviewed for a Google Cloud AI Engineer role; the onsite DSA round featured a custom array problem and I was not selected due to bugs in my code.
How it went
My recent interview experience for Cloud AI engineer role
Role Related Knowledge
Here the she asked all the AI related terms definition, she was mostly interested in prompt injection, system instructions how they impact to AI.
Onsite DSA interview question
It was an array question: given an array [3,1,2,4,5] you need to calculate the maximum sum of a subarray, but the subarray sum is defined as the first element plus the last element of the subarray minus the sum of the middle elements.
Example: [3,1,2,4] → 4 + 3 – (1 + 2) = 4
The best valid subarray was [4,5] with answer 9.
This was the only question asked; I solved it using a current‑sum and max‑sum approach for the array and suggested an optimized approach using prefix‑sum logic. I was not selected due to some bugs in my code. Hope it helps for anybody preparing.
Questions asked (1)
- 01
Maximum Modified Subarray Sum
Data Structures & Algorithms
Given an integer array, find the subarray that maximizes the value defined as:
value = first element of subarray + last element of subarray – sum of all middle elements.
For example, for the array[3,1,2,4,5], the subarray[4,5]yields the maximum value of9(4 + 5 – 0).Implement an algorithm to return the maximum possible value.