LTIMindtree
Global technology consulting and digital solutions company.
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
•
System Design
•
medium
Design a scalable URL Shortener service like TinyURL. How would you handle high read throughput and ensure unique short URLs?
#Scalability
#Hashing
#Caching
#Database Design
Backend Engineer
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System Design
•
medium
Design a URL shortening service like Bitly. Focus on the database schema, API endpoints, and read/write scalability.
#Scalability
#API Design
#Database Schema
Backend Engineer
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System Design
•
hard
Design a distributed rate limiter for a public-facing API to prevent abuse.
#Distributed Systems
#Algorithms
#Redis
Backend Engineer
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System Design
•
medium
How would you design a notification system that sends emails, SMS, and push notifications to millions of users?
#Asynchronous Processing
#Message Queues
#Microservices
Backend Engineer
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System Design
•
medium
Design a logging and monitoring architecture for a microservices-based e-commerce platform.
#Observability
#Logging
#Distributed Tracing
Backend Engineer
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System Design
•
medium
Explain how you would use Apache Kafka to decouple microservices in an order processing system. What are topics, partitions, and consumer groups?
#Kafka
#Event-Driven Architecture
#Messaging
Backend Engineer
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System Design
•
hard
How would you design a distributed Rate Limiter for a public-facing API to prevent abuse?
#API Gateway
#Algorithms
#Redis
Backend Engineer
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System Design
•
medium
Design a centralized Notification System capable of sending Emails, SMS, and Push notifications for a large enterprise client.
#Microservices
#Asynchronous Processing
#Third-party Integration
Backend Engineer
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System Design
•
hard
Design the backend for an E-commerce checkout system that needs to handle massive concurrent traffic during a Black Friday sale.
#High Availability
#Message Queues
#Concurrency
#Database Sharding
Backend Engineer
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Technical
•
medium
In what specific scenarios would you choose a NoSQL database like MongoDB over a relational database like PostgreSQL?
#Databases
#NoSQL
#Architecture
Cloud Engineer
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System Design
•
hard
Design a highly available and fault-tolerant 3-tier web application architecture on Azure. Which services would you use and why?
#Azure
#High Availability
#Architecture
Cloud Engineer
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System Design
•
hard
A client wants to migrate a monolithic application to microservices on Kubernetes. Walk me through your deployment strategy to ensure zero downtime.
#Kubernetes
#Microservices
#Deployment Strategies
#Migration
Cloud Engineer
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System Design
•
medium
Design a serverless data ingestion pipeline on AWS that receives JSON payloads from IoT devices, validates them, and stores them in a data warehouse.
#AWS
#Serverless
#IoT
#Data Pipeline
Cloud Engineer
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System Design
•
hard
Design a Disaster Recovery (DR) plan for a critical financial application hosted on Azure. What RTO and RPO considerations would you make?
#Azure
#Disaster Recovery
#Architecture
Cloud Engineer
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System Design
•
hard
Design an automated patching strategy for a fleet of 1000+ EC2 instances across multiple AWS accounts and regions without causing downtime.
#AWS
#Automation
#Security
#Systems Administration
Data Engineer
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System Design
•
medium
How would you design a batch ingestion pipeline to load 500 GB of daily incremental data from an on-premise Oracle DB to Azure Data Lake?
#Azure
#Data Ingestion
#Incremental Load
#Self-Hosted Integration Runtime
Data Engineer
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System Design
•
hard
Design a real-time fraud detection data pipeline for a banking client using the Azure or AWS stack.
#Streaming
#Kafka
#Event Hubs
#Databricks
#Architecture
Data Engineer
•
System Design
•
medium
A client wants to migrate their legacy on-premise Hadoop cluster to AWS. Walk me through your migration strategy and the AWS services you would use.
#Cloud Migration
#AWS
#Hadoop
#EMR
#S3
Data Engineer
•
System Design
•
hard
Design a data model and pipeline for a retail client to track inventory levels across 1000+ stores in near real-time.
#Data Modeling
#Real-time Processing
#Retail Domain
DevOps Engineer
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System Design
•
hard
Design a highly available, fault-tolerant, and scalable web application architecture on AWS for a major BFSI client. Include networking, compute, database, and caching layers.
#AWS
#Architecture
#High Availability
DevOps Engineer
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System Design
•
hard
Design a CI/CD pipeline architecture for a legacy monolithic application that LTIMindtree is migrating to microservices. How do you handle the transition phase?
#CI/CD
#Microservices
#Migration
DevOps Engineer
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System Design
•
hard
Design a Disaster Recovery (DR) strategy for a critical stateful application hosted on Azure. The client requires an RPO of 15 minutes and an RTO of 2 hours.
#Azure
#Disaster Recovery
#Architecture
Frontend Engineer
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System Design
•
hard
Design an autocomplete search bar component for a large e-commerce client. How do you handle race conditions, caching, and performance?
#Component Design
#Caching
#Race Conditions
#Debouncing
Frontend Engineer
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System Design
•
hard
How would you architect a Micro-frontend application for a large banking client? What are the pros and cons?
#Micro-frontends
#Architecture
#Module Federation
Frontend Engineer
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System Design
•
medium
Design a scalable image carousel component. What accessibility (a11y) and performance considerations would you include?
#Component Design
#Accessibility
#Performance
Full Stack Engineer
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System Design
•
hard
Design a centralized logging and monitoring system for a distributed microservices architecture.
#Microservices
#Logging
#Monitoring
#ELK Stack
Full Stack Engineer
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System Design
•
medium
Design a scalable URL shortener service like TinyURL. How would you handle high read/write volumes and collisions?
#Scalability
#Hashing
#Database Design
Full Stack Engineer
•
System Design
•
hard
Design a Notification System that can send Emails, SMS, and Push Notifications to millions of users.
#Message Queues
#Asynchronous Processing
#Scalability
Full Stack Engineer
•
System Design
•
medium
Design a REST API for a Library Management System. What endpoints would you create for borrowing and returning books?
#REST API
#API Design
#HTTP Methods
Full Stack Engineer
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System Design
•
medium
Design an E-commerce shopping cart system. What database would you use to store the cart items and why?
#Database Design
#Session Management
#E-commerce
Machine Learning Engineer
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System Design
•
medium
Design a document extraction pipeline to process scanned invoices, extract key-value pairs, and export them to a relational database.
#Computer Vision
#OCR
#NLP
Machine Learning Engineer
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System Design
•
hard
Design a recommendation system for a large e-commerce client. How would you handle the cold start problem for new users and new items?
#Recommendation Systems
#Cold Start
#Collaborative Filtering
Machine Learning Engineer
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System Design
•
hard
Design a real-time credit card fraud detection system. The system must process thousands of transactions per second with sub-50ms latency.
#Real-time Processing
#Fraud Detection
#Streaming
Machine Learning Engineer
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System Design
•
medium
Design an automated ticket classification system for an IT helpdesk. How do you handle multi-label classification and continuous learning?
#NLP
#Classification
#Continuous Learning
Machine Learning Engineer
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System Design
•
hard
Design a scalable architecture to serve an open-source LLM (like Llama-3) to internal enterprise users securely.
#LLMs
#Cloud Architecture
#Security
Machine Learning Engineer
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System Design
•
hard
Design a demand forecasting system for a retail chain with 1,000 stores and 50,000 SKUs. How do you model this at scale?
#Time Series
#Forecasting
#Distributed Computing
Machine Learning Engineer
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Technical
•
medium
Describe the difference between Batch Inference and Real-Time Inference. What architecture changes are required to move from batch to real-time?
#Inference
#Architecture
#MLOps
Product Manager
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System Design
•
medium
Design an automated workflow system for processing insurance claims.
#Workflow Automation
#Insurance
#System Architecture
Product Manager
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System Design
•
hard
Design a data pipeline product that ingests millions of IoT sensor events daily for a smart factory.
#Data Engineering
#IoT
#Scalability
Product Manager
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System Design
•
hard
Design a high-level system architecture for a scalable push notification service for a logistics client tracking real-time deliveries.
#Microservices
#Real-time Systems
#Logistics
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.