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Perpay Software Engineer Interview Questions

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

25questions
~3htotal time
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1
System DesignStart here. 10 questions · ~80 min
Design a URL Shortening ServiceHard

Design a URL shortening service that routes, ranks, and monitors links at scale.

Feature StoreModel ServingPerpay
Architect for Peak Traffic SpikesHard

Evaluates your ability to design for scalability and reliability under sudden load increases.

system architecturescalabilityPerpay
Design Scalable Controllers in PythonMedium

Assesses backend design and scalability considerations for Python web controllers.

api designscalabilityPerpay
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2
Behavioral & Leadership11 questions · ~88 min
Resolving Engineer-to-Engineer ConflictMedium

Tests conflict resolution, communication, and ownership when two engineers on the team are in tension.

Conflict ResolutionCommunicationLeadershipPerpay
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3
More topics4 questions · ~32 min
What Happens Behind the ScenesMedium

Evaluates your understanding of the web request lifecycle and core backend components.

httpPerpay
Choose a Coding Style in HTML/CSSMedium

Evaluates your engineering judgment around maintainability, readability, and consistency in frontend code.

Perpay
REST Essentials and Status CodesMedium

Tests your knowledge of REST fundamentals and correct HTTP status code usage.

Perpay
Designing Payment Endpoints and StatusMedium

Assesses API design and HTTP semantics for payment-related operations.

restscalabilitypythonPerpay

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Detect Duplicates in DatabaseMedium
Practice
Practice drill

Use a normalization CTE and self-join to find FanDuel player records sharing an email or phone number.

databaseFanduel
SQL Query for Expected ResultsMedium
Practice
Practice drill

Use LEFT JOINs, a CTE, and aggregation to summarize 2025 claims and completed payments for active Guidewire PolicyCenter policies.

databasesqlGGuidewire Software
SQL Query for 3rd LargestMedium
Practice
Practice drill

Find Airtel subscribers with the third-highest January data usage using joins, aggregation, a CTE, and DENSE_RANK.

databasesqlairtel
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