Transunion

Role: Software Development Engineer / SDE Project Trainee

College: Not Specified

Interview Date: 2025-07-23 (Likely refers to a recent past experience)

Interview Type: On-Campus

Result: Not Specified

Difficulty: Easy, Medium

Rounds: 2 rounds

Topics Asked: CS Fundamentals (C++, Java OOPS concepts, OS, CN), Programming (Arrays, Strings, Left rotation, Subarray with given sum, Merge Sort in Python), SQL (Primary Key, Unique Key, Referential Integrity, Stored Procedures, Rollback statements, Highest salary query, Joins), Cloud, Behavioral.

Experience:

This SDE Project Trainee interview experience at TransUnion involved an application through a college/university, with the process taking approximately 2-3 weeks.

Online Assessment Round
This round included sections on English Comprehension, Logical Ability, Quantitative Ability, and CS Fundamentals (C++, Java OOPS concepts, OS, CN). There were also two programming questions with a duration of 1 hour, typically of easy to medium difficulty. Examples of topics for coding questions included Arrays and Strings, such as "Program for array left rotation by d positions" and "Subarray with given Sum." Out of 700 students, 45 were selected for the next round.

Technical Interview + HR Round
This combined round featured questions on DSA (Data Structures and Algorithms), programming, and projects mentioned in the resume. After a brief self-introduction and project explanations, questions were asked related to the projects. Technical questions included:

• Which programming languages are you comfortable with (C/C++/Java/Python)?
• Explain different searching and sorting techniques with their time complexity.
• Write a Python program for merge sort.
• SQL questions: Primary key, unique key, differences between them, referential integrity constraint, stored procedures, which statements can be rolled back, SQL query for the highest salary of an employee without using the WHERE clause, different types of joins and their explanations.
• How comfortable are you with SQL and Cloud?

Out of 45 students, 18 were selected for the HR round (which was combined with this technical round). HR questions included:

• Tell me about yourself.
• What are your key achievements?
• Talk about your extracurriculars and responsibilities.
• How would you rate yourself as a team member?
• Speak about your strengths and weaknesses.
• Do you have any questions to ask?