Domande di colloquio per Java Senior Developer presso Oracle

hiring in Poland for oracle health. Recruiter call, 1st coding interview with 1 coding question. question: find longest palindrome in string, few behavioral questions. after passing this round next you will have 4 more interviews of which 2 coding rounds, 1 technical, 1 general. No single technical questions asked on java, spring or db. 2nd coding interview : leetcode problem, given an array and a number (total), find all combinations of numbers in the array whose sum is equal to the above total number. 3rd coding interview: Beautiful subarrays, Given an array of integers and a number of odd elements, create as many distinct subarrays as possible. example: [1,2,3,4,5] noOfOdds :2 output [1,2,3], [1,2,3,4], [2,3,4,5]. here each output array combination has 2 odd numbers. 4th technical interview: white board interview Draw your current project architecture and explain the components interaction. next system design : how do you design a system which should be able to fetch data from multiple vendors. singleton, code reuse etc. 5th interview with manager some behavioral questions. All this 5 interviews for a salary of 21k pln gross per month salary for a senior java developer in poland 2025. strange thing is no java, spring or db questions for me and currenlty planning on hiring 10 people. practice recursion approach, they want to see that

First round was screening round - a medium level hackerrank question with the interviewer After clearing screening, they schedule 4 rounds to test DSA, problem solving skills, system design and project discussion