Hello, how are you?
As a senior web and mobile app developer, I have good skills in building database structure.
ERD/RSD/NF is basocs of designing database structure.
I have full knowledge concerned with Relational Database and hierachy database.
Also in a practice, I have mastered many database servers such as cloud sql/cloud data store(GCP), dynomodb/RDS(AWS).
For query languages, I know SQL/NOSQL.
Via chat, I hope you clarify more details what you want.
Regards.
Fro <Rightbigboss>