I applied online and got response from HR for phone interview after a month. It was a 30 minutes interview with HR asking me questions about my qualification and salary expectation. HR was busy typing answers and therefore not much feedback. Got another phone interview (~1 hr) with hiring manager the following week. I was told more about the company and the position. Similar questions were asked. Then I was told to have the final on site interview a week later. I was surprised that it's gonna be a whole day interview -- meeting with 6 people and giving a 45 mins to 60 mins presentation. Even during lunch with the team, a few interview questions were asked. It's pretty exhausting process and I had to answer similar questions several times. I also sent out individual thank you letters after interview. After about 20 days later, I received rejection saying they moved on with other candidates. The original job was listed on their website for about 5 months when I applied. I also found out they listed a job posting with similar requirements again two months later.