Technical
- DSA (medium-hard)
- Rate limiting
- Transaction processing
- System design
Preparation Guide 2025 - Fintech/Payments Strategy
Preparation Guide - Fintech
Section titled “Preparation Guide - Fintech”Complete guide for fintech/payments technology interviews.
Key Topics
Section titled “Key Topics”Domain
- Payment flows
- Security basics
- Fraud patterns
- Compliance
6-Week Plan
Section titled “6-Week Plan”| Week | Focus |
|---|---|
| 1-2 | DSA fundamentals |
| 3-4 | System design + Payments |
| 5-6 | Mock tests + Behavioral |
Resources
Section titled “Resources”- LeetCode company tagged
- Payment system articles
- System Design Primer
Related Resources
Section titled “Related Resources”Coding Questions
Practice problems.
Interview Experience
Real experiences.
Master payments + security!
Last updated: January 2026