Ingeniero De Software Senior Java Interview Questions

Senior Java Developer

Interviewed at Picnic

3.3★

May 29, 2023

How could you make your code process faster?

Senior Java Developer

Interviewed at Mphasis

3.4★

Dec 20, 2021

Why we use microservices. Some example of microservices currently I am using.

Senior Java Developer

Interviewed at Mphasis

3.4★

Jan 4, 2023

Java

Senior Software Engineer - Java Developer

Interviewed at EPAM Systems

4★

Oct 31, 2022

Java8, OOP, Basic SQL Queries, Basic Spring Boot, Basic JUnit and Mockito questions

Senior Java Developer

Interviewed at EPAM Systems

4★

Jun 14, 2022

Difference between HashMap & ConcurrentHashMap

Senior Java Developer

Interviewed at EPAM Systems

4★

Jun 14, 2022

What is callable() in Java?

Senior Java Developer

Interviewed at lastminute.com

3.6★

Jul 20, 2022

What was the biggest fail and what did you learn from it?

Senior Java Backend Developer

Interviewed at EPAM Systems

4★

Feb 16, 2026

Java Questions like: - Difference between a StringBuilder and a StringBuffer - Difference between a ArrayList and LinkedList - hashCode() and equals() Spring Framework and SpringBoot - What is the core foundation of Spring Framework - What is the difference between SpringBoot and Spring Framework - Beans lifecycle - @Autowired annotation - @EnableAutoConfiguration Others - Scalability - CI/CD, what is the CI and what is the CD Databases - Difference between Relational and Non Relational Databases Code Challenge: - Find the longest substring of unique characters in a String

Senior Java Developer

Interviewed at EPAM Systems

4★

Dec 5, 2024

2nd Round Bit Diffcult But it starting from very Normal -> goes deep about Spring and Microservices core Concept. Here I rejected

Senior Java Developer

Interviewed at EPAM Systems

4★

Dec 30, 2024

Fault tolerance, api gateway, acid properties, service discovery, MySQL queries, diffrence in monolithic and microservices, functional programming, docker, cicd pipeline, mockito junit