Dataford
Top 13
Prep plan
Updated weekly · Last refresh Sep 18

Shift Technology Backend Engineer Interview Questions

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

13questions
~2htotal time
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1
CodingStart here. 8 questions · ~73 min
Climbing Stairs WaysMedium

Tests dynamic programming reasoning and complexity awareness.

Dynamic ProgrammingShift Technology
Compare Strings by CharactersMedium

Evaluates algorithm design for string comparison and correctness.

AlgorithmsShift Technology
Debugging JavaScript Code AloneMedium

Assesses your troubleshooting approach across the backend and JavaScript boundary.

javascriptDebuggingShift Technology
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2
Execution3 questions · ~27 min
High-Throughput Memory TuningMedium

Tests memory management and performance optimization strategies for high-throughput backend systems.

memory managementperformance optimizationShift Technology
Data Structure Trade-OffsMedium

Evaluates ability to choose appropriate data structures based on performance and constraints.

Trade-offsData StructuresShift Technology
Abstract Class vs Interface ChoiceMedium

Evaluates architectural decision-making for Java abstractions and extensibility.

architectureShift Technology
3
More topics2 questions · ~18 min
Understanding Database Indexing PurposeMedium

Explain the purpose of using indexes in databases and their impact on query performance.

Shift Technology
Optimize a Slow SQL QueryHard
Practice

Rewrite a slow PostgreSQL loan payment query to reduce scanned rows while preserving the required aggregated results.

database optimizationJoinsData WranglingShift Technology

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Hands-on SQL practiceWrite and run real queries in the editor. 2 drills · ~20 min
SQL Duplicate DetectionEasy
Practice
Practice drill

Find duplicate customer profiles by grouping on identifying fields and returning only repeated records.

Group ByHavingAggregationsAdtalem Global EducationUniversity of Southern CaliforniaBlue Cross Blue Shield of Michigan
Overlapping Policy Coverage SQLHard
Practice
Practice drill

Identify overlapping insurance coverage periods for one claimant, including chained overlaps, with PostgreSQL window functions.

Window FunctionsDate Functionsdata anomalyShift Technology
The finish line: interview-readyComplete all 13 questions plus 2 hands-on drills to finish this plan.