Capgemini FSSBU Backend Engineer Interview Questions

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

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SQL & Data ManipulationStart here. 5 questions + 1 drill · ~58 min

Second Highest Trader SalaryEasy

Practice

Find the second highest distinct salary from a single table using basic PostgreSQL ordering and limiting.

SubqueriesRankingSorting

Capgemini FSSBU

SQL Query OptimizationMedium

Practice

Optimize a slow PostgreSQL query that aggregates completed transactions while preserving customers with no matching activity.

Performance Tuningdatabase optimizationindexes

Capgemini FSSBU

SQL Join DifferencesEasy

Assesses your understanding of SQL join semantics and result set behavior.

Joinssqldatabase concepts

Capgemini FSSBU

SQL Window Functions Moving AverageMedium

Practice

Practice drill

Calculate a three-day moving average of active-client revenue using aggregation and SQL window functions.

Window FunctionsData AnalysissqlEEvalueserveSShyena Tech YarnsAATB Financial

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Coding8 questions · ~77 min

Java 8 vs Earlier VersionsEasy

Compare Java 8 with earlier Java versions, focusing on lambdas, functional interfaces, streams, and API improvements.

javabasicstechnical fundamentals

Capgemini FSSBU

Java Backend Coding FundamentalsMedium

Tests your ability to reason through Java backend problems and complete coding tasks.

javaProblem Solving

Capgemini FSSBU

Optional Advantages in Java 8Easy

Assesses your ability to use Optional to improve null-safety and code clarity.

java

Capgemini FSSBU

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System Design3 questions · ~29 min

Microservices Configuration ManagementMedium

Evaluates your approach to consistent configuration, deployment, and operational safety.

configuration managementdistributed systemsmicroservices

Capgemini FSSBU

Service Discovery and Circuit BreakingHard

Tests your ability to design resilient distributed backend systems.

service discoverymicroservices

Capgemini FSSBU

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