InvoZone Senior Java Developer interview questions

Firstly, it was on Sunday. Raises immediate questions about the company's culture. Why is this happening on Sunday? Is this normal? Does it indicate poor planning, desperation, or a toxic work-life balance? Secondly, the interviewer was not a Java developer. A major red flag about the role/team structure. Why is a non-Java developer conducting a core technical interview for a Java role? Poor resourcing, lack of technical leadership, or misunderstanding of the role's needs.