PepsiCo HR Manager interview questions

The interview process was lengthy, consisted of 3 phone interviews and then 3 interviews in person, followed by another phone interview. They also made me take 3 online assessments which took over 3 hours. After 5 interviews they never contacted me to tell me they had gone in another direction. I reached out to them and they said they went with another candidate. I had asked for feedback to help me move forward for future interviews and they never even responded. This was extremely disrespectful after the amount of time I had invested in the interview process.