IBM Software Developer interview questions

Round 1: 3 hours coding challenge/ Virtual interview, questions on String manipulation, trees. 3 coding questions 1 hr each, 2-4 video response questions.. Round 2: Guru Interview - Hirevue (Skype) - discussion on previous round's questions, 3 coding questions from Leetcode, 1 puzzle question Round 3: Guide Interview (Phone interview) - Behavioral questions, general discussion about next round Round 4: 2 day Onsite event (Finish Line event in San Francisco) Day 1 - Attended a Watson developer conference, prepared 2 hrs for a case study in a team of 5 Day 2 - Case study Presentations (10-15 mins), HR/Behavioral interview (10 mins). Offer confirmation within 4 hrs via text. Got the Offer letter next day.