Preply Backend Engineer Interview Questions
The questions to prepare for a Preply Backend Engineer interview. Questions from real interview reports rank first. Updated weekly.
Tests your understanding of consistency models, distributed transactions, and practical trade-offs.
Assesses your ability to design search APIs and backend behavior for paginated queries.
Evaluates end-to-end system design for Preply search including experimentation and request shaping.
Assesses your understanding of Python type mutability and its implications for correctness.
Evaluates your ability to design and implement a scheduler aligned to Preply backend needs.
Count 0 and 1 sensor readings by Bosch building using a CTE, LEFT JOIN, and conditional aggregation.
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Tests your ability to implement safe transactional behavior in Django.
Tests distributed systems design trade-offs and operational awareness.
Assesses your knowledge of indexing strategies and their impact on query performance.
Use a CTE, joins, and distinct aggregates to calculate Meta Logistics bookstore payment metrics.
Meta LogisticsUse joins, CTEs, and conditional aggregation to calculate user click rates with session start and end timestamps.
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