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Explain the projects you have worked on, focusing on challenges and solutions you implemented.

Behavioralhard1.5 min readPremium
Frequency
Low
Asked at 1 company
Category
144
questions in Behavioral
Difficulty Split
100E|18M|26H
in this category
Total Bank
1,863
across 7 categories
Asked at these companies
Capgemini
Key Concepts Tested
optimizationpartitionspark
Expert AnswerPremium
297 wordsInterview-ready
**Project 1 — Customer 360 Platform** **Situation:** 12 disparate sources (CRM, billing, support, marketing) fed inconsistent, duplicated data. The business needed a single customer view for analytics and personalization, but batch full-refresh took 18+ hours and couldn’t meet a 4-hour freshness SLA. **Task:** Deliver a canonical customer view with <6h freshness, deduplicated and lineage-tracked. **Action:** Designed a canonical schema with MDM-style golden records....
The complete answer continues with detailed implementation patterns, architectural trade-offs, and production-grade considerations. It covers performance optimization strategies, common pitfalls to avoid, and real-world examples from companies like Capgemini. The answer also includes follow-up discussion points that interviewers commonly explore.

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