Hiring in Poland for Oracle Health.

The recruitment process involves five interviews:

1. Recruiter Call: This initial call includes one coding question and a few behavioral questions. The coding question is to find the longest palindrome in a string.

2. Coding Interviews (2):

   • Second Coding Interview: A LeetCode-style problem. Given an array and a target number (total), find all combinations of numbers in the array whose sum equals the target number.
   • Third Coding Interview: "Beautiful Subarrays." Given an array of integers and a specified number of odd elements, create as many distinct subarrays as possible. For example, with the input [1, 2, 3, 4, 5] and noOfOdds: 2, the output subarrays [1, 2, 3], [1, 2, 3, 4], and [2, 3, 4, 5] each contain two odd numbers.

3. Technical Interview: A whiteboard interview where you will be asked to draw your current project architecture and explain component interactions. This is followed by a system design question: "How would you design a system capable of fetching data from multiple vendors?" Topics like singleton patterns and code reuse may be discussed.

4. Manager Interview: This interview focuses on behavioral questions.

Interestingly, for this role, there were no specific questions asked on Java, Spring, or databases. The company is currently planning to hire ten people.

It is recommended to practice recursion approaches, as they are looking for that in candidates.

This entire 5-interview process is for a salary of 21k PLN gross per month for a Senior Java Developer in Poland in 2025.

What conflicts you faced and how did you deal with them?