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Sii Group Italy Software Engineer Interview Questions

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

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~6htotal time
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1
CodingStart here. 8 questions · ~65 min
Abstract Classes vs InterfacesEasy
Recently asked

Compare Java abstract classes and interfaces, including inheritance rules, shared behavior, and when each is the better design choice.

javaabstractionoopSii Group Italy
REST CRUD With Stored ProceduresHard

Tests your ability to implement a CRUD REST API and integrate it with database stored procedures.

apiSii Group Italy
SOLID Principle ExplanationMedium

Assesses your understanding of maintainable design principles in software engineering.

solid principlesSii Group Italy
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2
Behavioral & Leadership34 questions · ~275 min
Pushing Back on Client ArchitectureMedium
Recently asked

Tests conflict resolution and influence without authority when a stakeholder insists on a suboptimal technical approach.

Influence Without AuthorityConflict ResolutionStakeholder ManagementSii Group Italy
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3
More topics4 questions · ~32 min
Optimize Flight Tracking SchemaHard
Recently asked

Tests advanced database modeling, indexing, and performance tuning for high-throughput systems.

Performance Tuningstar schemaData ModelingSii Group Italy
Design CRUD API From ScratchMedium
Recently asked

Tests your ability to translate relational data into a clean CRUD API design with sensible defaults.

Technical Fluencysolution designrequirementsSii Group Italy
4-Tempo Engine and Exhaust LineMedium

Evaluates your understanding of core technical concepts outside pure software.

Sii Group Italy
Architectural Decisions With Legacy CodeHard

Evaluates system design thinking and practical integration strategies for legacy systems.

Sii Group Italy

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
SQL Queries for RankingMedium
Practice
Practice drill

Rank active HSBC employees by division and return every employee tied for the highest or second-highest salary.

javasqlHsbc
Flag Suspicious Driver Signup ClustersHard
Practice
Practice drill

Use CTEs, joins, aggregations, and CASE logic to flag Lyft driver accounts with suspicious early activity patterns.

fraud detectionData AnalysisRisk ManagementLyft
Contact Center Agent Performance MetricsHard
Practice
Practice drill

Compute daily agent call KPIs and SLA using joins, aggregations, and window ranking in a contact center model.

ETLAggregationsData ModelingADP
The finish line: interview-readyComplete all 46 questions plus 3 hands-on drills to finish this plan.