Hello this Baraa I am 28 years am graduated from computer science university class of 2012 i have working as a database developer and designer for 3 years then worked as a production database administrator at Vodafone for 3 years i have worked with Sql server , mysql , postgres and MongoDB also I worked with mysql over AWSas i am working in a multinational company fast delivery , availability and minimal down time is always in my target and about code optimization it is my core working as a DBA so it will be easy to figure out what causes the problem also we need to discuss further
Thank you