Design a large-scale Inventory Management Platform
Last updated: October 18, 2025
Quick Overview
Design a event-driven inventory management system that handles millions of requests. Discuss trade-offs in consistency, availability, and performance.
Mastercard
October 18, 202534
9
4,354 solved
Design a event-driven inventory management system that handles millions of requests. Discuss trade-offs in consistency, availability, and performance.
This is a common system design question asked during Technical Screen at Mastercard. The interviewer expects you to demonstrate your ability to design large-scale distributed systems, make well-reasoned trade-offs, and communicate your thought process clearly. Mastercard values engineers who can think about scalability from day one.
What the Interviewer Expects
- Clearly define functional and non-functional requirements
- Propose a reasonable high-level architecture with core components
- Choose appropriate data storage solutions with basic justification
- Discuss basic scaling strategies (horizontal scaling, caching)
- Identify potential bottlenecks and suggest simple solutions
Key Topics to Cover
How to Approach This
- Start by clarifying functional and non-functional requirements with the interviewer.
- Estimate the scale: QPS, storage, bandwidth. This drives your design decisions.
- Draw a high-level architecture first, then deep dive into 1-2 critical components.
- Discuss trade-offs explicitly (e.g., consistency vs availability, SQL vs NoSQL).
- Address failure scenarios, monitoring, and how the system handles 10x traffic spikes.
Possible Follow-up Questions
- How would you optimize costs as the system scales?
- What would the deployment pipeline look like for this system?
- How would you handle schema migrations with zero downtime?
- What happens if one of your database nodes goes down?
Practice a Similar Problem on Codemia
Solve a related problem with our interactive workspace, get AI feedback, and view detailed solutions.
Solve on CodemiaSample Answer
Requirements
Functional Requirements
- Inventory Tracking: The system must track inventory levels in real-time across multiple locations and warehouses.
- Event-Driven Updates: Changes in inventory (...
Capacity Estimation
To estimate the capacity needed for the inventory management system:
- Daily Requests: Assume 10 million requests per day, which translates to approximately 115 requests per second (10,000,000 / 8...
Submit Your Answer
