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TransUnion Software Engineer Interview Questions

The questions to prepare for a TransUnion Software Engineer interview. Questions from real interview reports rank first. Updated daily.

50questions
~9htotal time
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1
CodingStart here. 24 questions · ~273 min
Functions, Structures, and Data StructuresEasy
Practice
Recently asked

Determine whether a TransUnion TruVision label is a palindrome using a reusable function and constant extra space.

functionsData StructuresTransUnion
Binary Search and Spiral TraversalMedium
Practice
Recently asked

Use binary search to locate a value and boundary pointers to traverse a matrix in spiral order.

binary searchTransUnion
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2
SQL & Data Manipulation9 questions + 2 drills · ~122 min
SQL Query OptimizationMedium
Practice
Recently asked

Optimize a slow PostgreSQL query that aggregates completed transactions while preserving customers with no matching activity.

Performance Tuningdatabase optimizationindexesTransUnion
Explain SQL Join TypesEasy
Recently asked

Explain INNER, LEFT, RIGHT, FULL OUTER, CROSS, and SELF JOINs with examples and when to use each.

JoinsData WranglingGroup ByTransUnion
Inner Join vs Left JoinEasy
Practice
Practice drill

Use a LEFT JOIN to return every user, including users without an assignment, and distinguish unmatched rows from matched rows.

null handlingJoinssqlTransUnionThirdware SolutionAntra
Running Totals and Moving AveragesMedium
Practice
Recently asked
Practice drill

Calculate monthly credit utilization, running totals, and three-month moving averages for TransUnion customers.

Window FunctionssqlRunning TotalsTransUnionEquifaxCNA
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3
Pipelines3 questions · ~34 min
ETL Components ComparisonMedium
Recently asked

Evaluates your understanding of data pipeline building blocks and tradeoffs.

data processingETLTransUnion
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4
System Design3 questions · ~34 min
Inheritance, Polymorphism, and OOP PillarsHard
Recently asked

Evaluates your ability to apply OOP principles in a realistic design and code structure.

designoopTransUnion
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5
Behavioral & Leadership7 questions · ~80 min
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6
More topics4 questions · ~46 min
Secure Password StorageMedium
Recently asked

Evaluates your security knowledge for protecting user credentials.

TransUnion
Cloud and Python FundamentalsMedium
Recently asked

Assesses foundational cloud and Python understanding for software engineering work.

pythonCloudTransUnion
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The finish line: interview-readyComplete all 50 questions plus 2 hands-on drills to finish this plan.