Oracle Sr Developer interview questions

2 technical rounds and one senior director interview. Second round was coding test. you will be given test cases you need to write the functionality and make them pass.There were puzzle questions also in manger round.

3-4 rounds of moderate level technical interviews. It requires good show of problem solving, coding, puzzles, database, Java/C++ concepts. You should be able to code the problem in an efficient way with edge case handling. You should be able to explain why chose a particular algorithm. You should also be able to find out time and space complexity of program and be able to suggest further optimizations to the program.