System design

Visa System Design Questions

Every system design problem candidates reported at Visa between September 2025 and September 2026, most-asked first. Each one links to a full solution. Tick them off as you go.

Practice a Visa system design round with me

I'm Alex. I'll pick one of these Visa questions and interview you on it: scope, design, and deep dives.

4problems
4candidate reports
0asked more than once
9topics
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Topics

Design E-Commerce Tables and Indexes for Recent-Spend Queries
1 report · last seen Aug 2026DatabasesE-commerce
Beginner▶ Mock
Payment system: states, payment methods, durable execution, retries
1 report · last seen Jun 2026PaymentsFintechDistributed Systems
Advanced+1▶ Mock
Design a notification system
1 report · last seen May 2026Real-timeMessagingDistributed Systems
Advanced+5▶ Mock
Re-architect your current project for planet scale
1 report · last seen May 2026Distributed SystemsDatabasesCaching
Beginner▶ Mock

Duplicate reports of the same problem are merged and counted.

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Frequently Asked Questions

What system design questions does Visa ask?

Candidates reported 4 distinct system design problems at Visa between September 2025 and September 2026, including Design E-Commerce Tables and Indexes for Recent-Spend Queries, Payment system: states, payment methods, durable execution, retries, Design a notification system.

How to prepare for Visa system design interview?

Start with the Visa problems reported most often, work through each full solution, then practice explaining a design end to end under time pressure in a mock interview.

What is the difference between HLD and LLD at Visa?

HLD (High-Level Design) focuses on system architecture, scalability, and component interactions. LLD (Low-Level Design) dives into class diagrams, API contracts, and database schemas. Visa tests both.