Pregunta de entrevista de PayPay

Step 3: 4 round of loop interview: 1. programming challenge - work experience - java access modified, GC, synchronized, final, finally - some kotlin language basic - design pattern (Factory pattern) - Spring container - medium level puzzle code challenge 2. system design interview - work experience - system design of some fintech related features/transaction. 3. algorithm & data structure - explaining about array, set, linked list, hashmap, hash collision - medium level puzzle code challenge 4. database - Devops, CI/CD - RDBMS related usecase, issues, and performance optimization. 5. Talking with HR