Database Design / Architect

Looking for an expert in database design who has extensive knowledge of working with different SQL and NO SQL database. It is a project that involves database design, understand nature of transactions, suggest the appropriate database. We need a detailed documentation of database design and schema as per the requirement which would have minimum data redundancy, minimum data restructuring, minimum I/O redesign , Data caching Mechanism, Data modelling, Use Case diagrams, Steps to configure database and security mechanism for the database, Performance improvement using various techniques like partition, indexing, in Memory data storage etc., accurate Normalisation of tables and design schema that is loosely coupled and highly scalable which can support millions of data transactions. Process flow to backup the database regularly and prevention of data loss by crash recovery. Requirements would be provided upon request.