Understand.AI is a a great company to work and learn ADAS/AD domain. The company is focusing on annotations that are required for perception stack development and verification of ADAS/AD functions. Annotation is done using both automation and manual workforce, therefore it is also possible to work on AI/ML domain.
Cons
Relatively small company in the industry, therefore engagement size is usually limited. If you are looking for a company with more emphasis on research and long-term solutions, it might not be right choice.