Hey :), I had an interview as a Junior Java Interview at a german neo bank. The stuff I am listing is in the order the interviewer asked me the questions. First, he told me stuff about the company and what they do. He asked one specific question about my last job and why I wanted to switch. He asked for the salary range I am looking for. He asked if I knew Spring, I told him I know the basics from a book, so he told me okay, we skip the Spring questions then. Java: -What is private, public, protected -What is an atomicint/ atomiclong -What is try with resources -What is an abstract class and what is it used for -What is dependency injection -What is an factory and when would you use it I gave classic abstract factory example with ui components -What is an interface -What is an immutable class and how would you define such a class I said: A class which variables can not be change after initialization thats why you need to pass them in the constructor. He also would have liked to hear: Variables should be defined private final & there should be no setters for the variables In java there are two memory spaces: Stack & heap, explain whats the difference MySql: -What is left join -What is inner join -What is having keyword (did not know, it is basically a WHERE after GROUP BY) -What is explain -What is an index and what is it used for -What is Union, what conditions does the data have to have to be able to make a union -What are db transactions Interview went well. Next I had to go there and code a simple REST API as the last interview step. The Rest API was something along the lines of: Code backend for user login Load data from csv into a spring db Return a list of that stored db data Do some computation to sort the db data and return it in order Write tests I had 5 hours total. Biggest Tip: If you go there for doing task on sight, make sure to have your ChatGpt/Copilot PW so you can use it there. Also, focus on completing all features and then think about doing good architecture or testing. The guy seemed so bored even though I had really good architecture and unittest. That was clearly not the focus. Focus was not about clean practices, but to finish the features functionally in the given time. I really hope you get the job my friend. Edit: formatting More on reddit.com

These make me feel like I'm not a real developer. I've never been pressed to do anything like this. More on reddit.com

For a Java Backend Developer role with 3+ years of experience, you can expect a mix of technical and practical questions. Interviewers will likely ask about your experience with Spring Boot, microservices architecture, and SQL databases. They may probe your understanding of RESTful API design, dependency injection, and JPA. Be prepared to discuss your experience with version control systems like Git, and CI/CD pipelines. You might also face questions about handling concurrency, optimizing database queries, and implementing security measures in Java applications. Real-time scenarios could include designing a scalable microservice, troubleshooting performance issues in a Spring Boot application, or explaining how you'd implement caching in a distributed system. Expect to be asked about your problem-solving approach and how you've handled challenges in previous projects. I've found that practicing coding problems on platforms like LeetCode or HackerRank can help sharpen your skills for technical interviews. If you're feeling the heat, check out interviews.chat It might help you practice those tricky questions and boost your confidence. Full disclosure, I'm on the team that built it, and we really tried to make something useful for job seekers. Good luck with your interviews! More on reddit.com

I get a candidates to do a small out of hours project (small web service). The main constraint is that you cannot use Spring/Boot. This sorts out the chaff ;) More on reddit.com