Overall, very poor hiring process whereby the candidate is strung along. Endless number of interviews with seemingly random levels of employees, and in the end, they changed the job title (lower than the job posting) and responsibilities (no direct reports, lower rank) after SEVEN interviews.
Hard pass on this company if you're experienced and don't want to waste your time. Consider them only if you're young and have time to waste, maybe they have some interesting technology, or if you're in a dual-income situation and have a partner who can cover your bills while they waste your time with endless in-person interviews.