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.
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Duplicate reports of the same problem are merged and counted.
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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.