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Updated weekly · Last refresh Oct 17

Synthego Software Engineer Interview Questions

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

26questions
~4htotal time
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1
CodingStart here. 5 questions · ~44 min
Palindrome Function ImplementationEasy
Practice

Determine whether a string reads the same forward and backward using a two-pointer scan.

RecursionStringsTwo PointersSynthego
Language Proficiency and Applied ImpactEasy

Explain which programming languages you know best, why, and how you used them to deliver maintainable and performant software.

Hash TablesStringsSortingSynthego
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2
Behavioral & Leadership15 questions · ~131 min
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3
More topics6 questions · ~52 min
Design an API Under ConstraintsMedium

Design an API by balancing usability, performance, versioning, and operational risk under real product constraints.

Trade-offsRisk AssessmentScope ManagementSynthego
Merging CSV Data and SubsettingMedium

Assesses your SQL and data manipulation skills for joining datasets and producing targeted outputs.

Synthego
Structure a Device ClassMedium

Tests your software design skills for modular classes and configuration-driven behavior.

Synthego
System Design for Genomic DataHard

Tests system design skills for scalable processing of genomic data used in CRISPR workflows.

InfrastructureFeature StoreData ModelingSynthego
Optimizing Database QueriesMedium

Tests SQL performance tuning skills and practical reasoning about query execution.

Joinsquery optimizationSynthego
Ensuring Software QualityMedium

Tests your engineering rigor around testing, reliability, and maintainable system design.

Success CriteriaRisk AssessmentSynthego

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Optimize SQL Query PerformanceMedium
Practice
Practice drill

Optimize a PostgreSQL billing query using selective filtering, pre-aggregation, indexes, and regional ranking.

database optimizationJoinsindexesQuantumBlackDDell Tech LaboratoriesConfluent
Top Customers by Sales RevenueEasy
Practice
Practice drill

Use GROUP BY and SUM to rank the top 10 customers by total revenue from a single sales table.

RankingGroup ByAggregationsHousecall ProEquifaxXYZ
Compare Weekly User Activity TrendsMedium
Practice
Practice drill

Aggregate user activity by week, then use LAG to compare sessions and watch time versus the prior active week.

Window FunctionsLag/LeadDate FunctionsB Lab GlobalTapadScale
The finish line: interview-readyComplete all 26 questions plus 3 hands-on drills to finish this plan.