Visa

Data Engineer Interview Experience - Poland

February 11, 2025

Negative ExperienceNo Offer

Process

After phone interview, interview with the Manager and Director with separate sessions. Both were from a country that I cannot understand the accent. I could not even understand the questions clearly already.

Questions

Traverse a linked list in any programming language.

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Interview Statistics

The following metrics were computed from 1 interview experience for the Visa Data Engineer role in Poland.

Success Rate

Pass Rate

Visa's interview process for their Data Engineer roles in Poland is extremely selective, failing the vast majority of engineers.

Experience Rating

Positive0%

Neutral0%

Negative100%

Candidates reported having very negative feelings for Visa's Data Engineer interview process in Poland.

Visa Interview Questions

3Sum

Medium

Find all unique triplets in an array that sum to zero. You'll need to consider the potential for duplicate numbers and avoid duplicate triplets in your solution.

ArraysTwo Pointers

Balanced Binary Tree

Easy

Determine if a binary tree is height-balanced. A height-balanced tree is defined as one where the difference in height between the left and right subtrees of every node is no more than 1.

TreesRecursion

Length of Longest V-Shaped Diagonal Segment

Hard

Find the length of the longest diagonal segment in a matrix that forms a V-shape. A V-shape is defined by monotonically decreasing values followed by monotonically increasing values along the diagonal.

Dynamic ProgrammingArrays