Vast experience with Relational Databases and theory. I have skills in database architecture and design, stored procedures programming, query analysis and optimization, performance streamlining, cluster architecture and more. My employment experience includes programming performance-optimized stored procedures for an equity trading platform, design of a very large datawarehouse, ETL of credit card payments data, handling large datasets, information schema and system tables queries, data-modeling and writing complex SQL queries. I am an author of https://sproutpl.wordpress.com/ - an object oriented programming language written with Postgres procedural SQL.