PwC
PricewaterhouseCoopers, a multinational professional services network.
4 Rounds
~21 Days
Medium
The Interview Loop
Recruiter Screen (30 min)
Standard fit check, behavioral questions, and resume overview.
Technical Loop (3-4 Rounds)
Deep dive into domain knowledge, coding, and system design.
Interview Question Bank
Machine Learning Engineer
•
Coding
•
medium
Given an array of intervals where intervals[i] = [starti, endi], merge all overlapping intervals, and return an array of the non-overlapping intervals that cover all the intervals in the input. This is often used to consolidate overlapping client transaction windows.
#Arrays
#Sorting
#Intervals
Machine Learning Engineer
•
Coding
•
medium
Write a Python function from scratch to compute the TF-IDF scores for a corpus of text documents without using scikit-learn.
#Python
#NLP
#Math
Machine Learning Engineer
•
Coding
•
medium
Given a large list of server log error codes, write a function to find the top K most frequent error codes. Optimize for time complexity.
#Heaps
#Hash Maps
#Counting
Machine Learning Engineer
•
Coding
•
hard
Implement the core update step of the K-Means clustering algorithm in Python using NumPy.
#Python
#NumPy
#Machine Learning
Difficulty Radar
Based on recent AI-sourced data.
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Senior EngineerFocuses on core competencies, system constraints, and clear communication.
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