Data engineer needed to manage 2 extensive databases and develop complex algorithms for them

INTEREST IN MOVIES AND SHOWS definitely helps. We are a new website service that hopes to eventually build two significant databases, one for content and one for users. We need to establish, develop and manage such databases to keep everything organized AND to use such data for use in complex algorithms. We already have a significant database of content to which we are continually augmenting through APIs and AI Agents using API keys. We need to convert this database to numeric values that can be used in calculations for a couple of complex algorithms. We need someone that can continually develop and manage these databases and create complex effective working algorithms based on these two databases while also working with AI to continually develop useful data for our content. MUST BE FLUENT IN ENGLISH. In your cover letter, tell me about the most complex and effective algorithms you have created. Can also mention converting a database to numerical values.