I am Ahmed Mustafa, having nine Microsoft Virtual Academy certifications, working currently as Principal Database Administrator at CMMI 5 www.netsoltech.com for five years along with successful freelancing support to different clients. I have deep knowledge of all phases of database development including but not limited to requirement analysis, schema design ,ETL, index tuning, replication, mirroring, fail-over clustering, complex query writing, process design optimization, query optimization , server design and deployment on server in a optimized way. I have worked on SQL Server (version 2000 to 2014) , Oracle (9i,10g, 11g) , Postgres 9.3 , SSIS, SSRS and SAN storage. Further I have vast Redesign and DB Optimization experience regarding both server machines and code. I have been awarded twice at Netsol on optimizing critical batches of different databases( Performance Excellence Award and Team of Month Award) I have completed two projects at Upwork, one involving migration of mirrored servers and other comprising design of Postgres DB for one million concurrent users. Thanks!