I got contacted with a recruiter first and after a couple of weeks, got an onsite interview. The whole process was very smooth but the downside was although the recruiter was aware that I will need visa sponsorship in future, she sent me for onsite interview (everything paid by myself) so I assumed the sponsorship is not an issue any more. When I got my rejection email, she explained that sponsorship was not approved for this position. It was really disappointing!

Very technical-oriented interview, with only a few behavioral questions. Expect a lot of questions related to the job description. Not too difficult but be prepared for rapid fire chemistry questions.