Salesforce Senior Software Developer interview questions

Implement X algorithm for this data structure oriented telephone screen, followed by 4-5 hour onsite which was web architecture design, dynamic programming, data structure/algorithm related. Solved most of the problems with a hint here and there. Interviewers were friendly, but interview follow up left something to be desired. Recruiter said they would follow up with feedback/decision from the team a couple days after the interview, but never responded even after I sent a couple follow up emails asking for feedback.