They (currently) just want someone to help them develop their first mobile app and service and they don’t know how. It’s a good technical contract job but not a permanent gig. They don’t even care about their long term needs for this role. Short term needs are king. I advise they look for a consultant instead. Nice people but they don’t differentiate between short term contracting jobs and long term needs (where knowledge of writing a good DDD software is more important and much more difficult than things you can easily Google).