Top 16
Prep plan
Updated weekly · Last refresh Oct 17

Simpl Backend Engineer Interview Questions

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

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1
CodingStart here. 7 questions · ~58 min
Subset Sum ProblemHard

Evaluates dynamic programming or optimized approaches for subset sum constraints.

Dynamic ProgrammingSimpl
Largest Number From IntegersMedium

Assesses greedy sorting and comparator correctness for forming the maximum concatenation.

Array ManipulationSimpl
OOP in a Real-World ScenarioMedium

Assesses OOP principles applied to practical backend or product requirements.

oopSimpl
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2
System Design6 questions · ~50 min
Uber-Style System DesignHard

Tests end-to-end system design skills for a real-time, location-based marketplace.

system architecturescalabilitySimpl
IMDB-Style Backend DesignHard

Tests backend architecture skills for a large-scale content and search platform.

database designSimpl
Uber-Style Ride Sharing DesignHard

Evaluates system design skills for real-time matching, tracking, and scalable backend architecture.

system designdistributed systemsscalabilitySimpl
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3
More topics3 questions · ~25 min
Relational vs NoSQL DatabasesMedium

Assesses data modeling tradeoffs and selection criteria for relational versus NoSQL systems.

nosqlrelational databasesSimpl
OS, Concurrency, and HTTP BasicsMedium

Evaluates understanding of concurrency primitives and the request flow from browser to backend over HTTP.

Operating SystemsconcurrencySimpl
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 16 questions plus 3 hands-on drills to finish this plan.