Tesla Senior Engineering Manager interview questions

Had three job interviews by phone, all were held in english. After that I was asked to complete a 4 hours take home coding challenge. We agreed on a specific day and time and the challenge was sent to me by email. The challenge included programming in PLC and additional program languages like Python, Ladder, C++ or Java. In my opinion the challange was made for specialized PLC programmers and not for Manager of an engineering department.