Desarrollador De Software Java Senior Interview Questions

Senior Java Developer/Lead

Interviewed at Mercado Libre

4.1★

Jan 31, 2023

Diseño de arquitectura escalable de emails

Senior Software Engineer - Java

Interviewed at Thermo Fisher Scientific

3.5★

Nov 10, 2025

OOP, System design, design pattern

What are transaction isolation levels and what problems do they solve?

What is the contract between equals() and hashCode() in Java?

How can you fetch a lazily initialized collection within a query? (Follow-up: JOIN FETCH)

How does Spring manage transactions behind the scenes? How would you manage it manually? (Follow-up: Using EntityManager with a try-catch block for commit/rollback)

Senior Java Developer

Interviewed at CDK Global

3.4★

Jun 20, 2018

design and coding questions

Sr Java/Spring Developer

Interviewed at Maxxton

3.7★

May 2, 2023

Questions on Java, SpringBoot, Microservices, REST, etc.

Senior Java Developer

Interviewed at OpenBet

3.1★

Apr 1, 2024

Solid principles, rest principles, hash code, types of list, concurrency, sql, previous and current roles

Senior Java Developer

Interviewed at HSBC

3.8★

Oct 30, 2025

OOps concepts with real coding sepacialy inheritance,abstraction related, Diff b/w camparable and comparator, Hashmap and concurrentHashmap difference, collectiones diagram, String code, Spring Security