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
Backend Engineer
•
Technical
•
hard
Describe the differences between optimistic and pessimistic locking in database concurrency control.
#Concurrency
#Databases
#Performance
Backend Engineer
•
Technical
•
medium
What is the N+1 query problem in ORMs like Hibernate or Entity Framework, and how do you resolve it?
#ORM
#Performance
#SQL
Backend Engineer
•
Technical
•
medium
What are the ACID properties in a database, and how do they apply to distributed transactions?
#SQL
#Transactions
#Distributed Systems
Cloud Engineer
•
Technical
•
easy
What are the key differences between a relational database and a NoSQL database in terms of scaling and consistency?
#SQL
#NoSQL
#CAP Theorem
Data Engineer
•
Technical
•
medium
What is the difference between a clustered and non-clustered index? How does indexing affect ETL performance?
#Indexing
#Performance Tuning
#Database Internals
Full Stack Engineer
•
Technical
•
easy
What are the ACID properties in a database? Why are they important for financial applications?
#ACID
#Transactions
#Data Integrity
Software Engineer
•
Technical
•
medium
What is an ORM (Object-Relational Mapper)? What is the 'N+1 query problem' and how do you solve it?
#ORM
#Performance
#SQL
Software Engineer
•
Technical
•
medium
What is the difference between clustered and non-clustered indexes in a relational database?
#SQL
#Performance Tuning
#Indexing
Difficulty Radar
Based on recent AI-sourced data.
Meet Your Interviewers
The "Standard" Interviewer
Senior EngineerFocuses on core competencies, system constraints, and clear communication.
SimulateUnwritten Rules
Think Out Loud
Always explain your thought process before writing code or drawing architecture.