ChargePoint Senior Data Scientist interview questions

they gave 1st take home assignement related to charpoint problem, 2nd roud discussion on take home assignment, 3rd round deep dive ML, data engineering questions. 4th round discussion with a AI leader in Europe. 5th Round in person discussion with VC in data science of India. After clearing all rounds, HR called and said contgratulations and discussion about pay scale, I did small negotiation, she said will come back after internal discussion. Then ghosted me for 1 months giving different kind of excuses and finally got rejection email. Such a pathetic interview experience.