Capgemini
Global leader in partnering with companies to transform and manage their business by harnessing the power of technology.
4 Rounds
~21 Days
Medium
The Interview Loop
Recruiter Screen (30 min)
Standard fit check, behavioral questions, and resume overview.
Technical Loop (3-4 Rounds)
Deep dive into domain knowledge, coding, and system design.
Interview Question Bank
Backend Engineer
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System Design
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medium
In a distributed microservices environment deployed on AWS, how would you design a centralized logging and tracing system to debug cross-service requests?
#Observability
#AWS
#Microservices
Backend Engineer
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System Design
•
medium
Design a scalable notification system that can send emails, SMS, and push notifications to millions of users. How do you ensure messages are not sent multiple times?
#Message Queues
#Idempotency
#Scalability
Backend Engineer
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System Design
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medium
Design a URL shortening service like Bitly. Focus on the database schema, the hashing algorithm, and how you would handle high read throughput.
#Scalability
#Hashing
#Databases
Backend Engineer
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System Design
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hard
Design a highly available checkout API for an e-commerce client preparing for a Black Friday sale. How do you prevent overselling inventory?
#Concurrency
#Caching
#Distributed Locking
Data Engineer
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System Design
•
medium
How would you implement Change Data Capture (CDC) in a modern cloud data stack?
#CDC
#Data Architecture
#Streaming
Data Engineer
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System Design
•
medium
Design a data model for a retail client migrating their legacy on-premise data warehouse to Snowflake.
#Data Modeling
#Snowflake
#Cloud Migration
Data Engineer
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System Design
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hard
Design a real-time streaming pipeline for IoT sensor data using Azure services.
#Azure
#Streaming
#IoT
#Architecture
Data Scientist
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System Design
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hard
Design an end-to-end architecture for deploying a churn prediction model on Azure for a telecommunications client.
#Azure
#MLOps
#Model Deployment
Data Scientist
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System Design
•
medium
How would you design a system to automatically classify and route incoming customer support emails using NLP?
#NLP
#Text Classification
#System Architecture
Data Scientist
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System Design
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hard
Design a fraud detection system for real-time credit card transactions. Focus on the latency requirements and feature store architecture.
#Real-time Processing
#Fraud Detection
#Feature Store
#Streaming
Data Scientist
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System Design
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hard
Design a recommendation engine for an e-commerce client. What data would you need, and what algorithms would you use?
#Recommendation Systems
#Collaborative Filtering
#System Architecture
DevOps Engineer
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System Design
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medium
You need to automate the patching of 500 Linux VMs across multiple environments. How would you architect this solution?
#Automation
#Ansible
#Patch Management
DevOps Engineer
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System Design
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hard
Design a highly available, fault-tolerant 3-tier web application architecture on AWS for a retail client expecting high Black Friday traffic.
#AWS
#High Availability
#Auto Scaling
#Load Balancing
DevOps Engineer
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System Design
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hard
Design a CI/CD pipeline for a monolithic application that is being gradually strangled into microservices. How do you handle the transition?
#CI/CD
#Microservices
#Migration
Frontend Engineer
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System Design
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medium
Design an autocomplete/typeahead search component. Discuss API debouncing, caching previous searches, and ensuring accessibility.
#Component Design
#Performance
#Accessibility
Frontend Engineer
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System Design
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medium
Design an e-commerce Product Listing Page (PLP). Discuss how you would handle complex filtering, sorting, and infinite scrolling on the frontend.
#Architecture
#Pagination
#State Management
Frontend Engineer
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System Design
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hard
Design the frontend architecture for a real-time collaborative text editor (similar to Google Docs). Focus on state synchronization and conflict resolution.
#Real-time Systems
#WebSockets
#Operational Transformation
Frontend Engineer
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System Design
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hard
Design a scalable frontend architecture for a financial trading dashboard that receives high-frequency real-time stock updates.
#High Performance
#WebSockets
#Data Visualization
Frontend Engineer
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System Design
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hard
A large enterprise client wants to migrate their monolithic frontend to Micro-frontends. How would you architect this using Webpack Module Federation?
#Micro-frontends
#Webpack
#Architecture
Full Stack Engineer
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System Design
•
medium
How would you implement authentication and authorization across multiple microservices?
#Security
#Microservices
#JWT
Full Stack Engineer
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System Design
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hard
Design a real-time chat application like Microsoft Teams. How do you ensure messages are delivered in real-time?
#WebSockets
#Real-time
#Scalability
Full Stack Engineer
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System Design
•
medium
How do you handle rate limiting in a public-facing API to prevent abuse?
#API Gateway
#Security
#Algorithms
Full Stack Engineer
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System Design
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hard
Explain the Saga design pattern. How do you handle distributed transactions across multiple microservices?
#Distributed Systems
#Microservices
#Transactions
Full Stack Engineer
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System Design
•
medium
Design a URL Shortener service like Bitly. Focus on the database schema and the URL generation algorithm.
#Scalability
#Hashing
#Database Design
Full Stack Engineer
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System Design
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hard
Design a microservices architecture for an e-commerce platform. How would you handle service discovery and API routing?
#Microservices
#Architecture
#API Gateway
Machine Learning Engineer
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System Design
•
hard
Design a real-time credit card fraud detection system for a banking client.
#Fraud Detection
#Streaming
#Real-time Processing
Machine Learning Engineer
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System Design
•
medium
Design a document extraction system to automatically parse and extract key fields from scanned invoices using OCR and NLP.
#Computer Vision
#NLP
#OCR
Machine Learning Engineer
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System Design
•
medium
How would you design an end-to-end MLOps pipeline on AWS or Azure for a model that needs weekly retraining?
#MLOps
#Cloud
#CI/CD
Machine Learning Engineer
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System Design
•
medium
Design a system to predict customer churn for a telecommunications company. What features would you use and how would you serve the predictions?
#Tabular Data
#Classification
#Feature Engineering
Machine Learning Engineer
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System Design
•
hard
Design a personalized recommendation system for a large retail client's e-commerce platform.
#Recommendation Systems
#Collaborative Filtering
#Scalability
Machine Learning Engineer
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System Design
•
hard
A client wants to deploy a Large Language Model (LLM) for an internal knowledge base but is highly concerned about data privacy. How do you design this?
#LLMs
#RAG
#Data Privacy
#Security
Machine Learning Engineer
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Technical
•
easy
Explain the architectural differences between Batch inference and Real-time inference. When would you use which?
#Inference
#Architecture
#Deployment
Product Manager
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System Design
•
medium
Design a recommendation engine for an e-commerce client. What data points would you collect, and how would you measure its success?
#Machine Learning
#E-commerce
#Data Pipelines
#Personalization
Product Manager
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System Design
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hard
Design a high-level system architecture for a ride-sharing app's surge pricing feature.
#Architecture
#Scalability
#Algorithms
#Real-time Data
Product Manager
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System Design
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hard
How would you design an API rate-limiting feature for a B2B data platform to prevent abuse while ensuring enterprise clients get their contracted quotas?
#APIs
#Security
#Scalability
#Throttling
Product Manager
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System Design
•
hard
Design an automated invoice processing system for a client using OCR and Machine Learning. Walk me through the user journey and system components.
#AI/ML
#Automation
#Process Design
#OCR
Software Engineer
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System Design
•
medium
Design a URL shortening service like Bitly.
#Scalability
#Hashing
#Database Design
Software Engineer
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System Design
•
hard
Design a rate limiter for a public-facing API.
#API Gateway
#Algorithms
#Scalability
Software Engineer
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System Design
•
medium
Design a logging and monitoring strategy for a distributed enterprise application.
#Observability
#ELK Stack
#Microservices
Software Engineer
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System Design
•
hard
How would you design a scalable microservices architecture for an e-commerce checkout system?
#Microservices
#Event-Driven Architecture
#Scalability
Difficulty Radar
Based on recent AI-sourced data.
Meet Your Interviewers
The "Standard" Interviewer
Senior EngineerFocuses on core competencies, system constraints, and clear communication.
SimulateUnwritten Rules
Think Out Loud
Always explain your thought process before writing code or drawing architecture.