Yenugula Venkata Ravi Kumar (YVR) is an Oracle ACE Director and Oracle Certified Master (OCM) with 22+ years of experience in the banking, financial services, and insurance (BFSI) verticals. He has worked as a Vice President (DBA), Senior Database Architect, Senior Specialist Production DBA, and Oracle Engineered Systems Architect. He is an OCP (Oracle 8i to 12c) and Oracle Certified in Oracle GoldenGate, RAC, Performance Tuning, and Oracle Engineered Systems (Exadata, ZDLRA, and ODA). He has written 100+ articles and published in Oracle Technology Network (OTN), OraWorld Magazine, UKOUG, OTech Magazine, and Redgate. 
Oracle Speaker at Oracle Open World 2017/2018, IOUG 18, NYOUG, OTN-Yatra, AIOUG, Sangam, and SOUG. He was designed, architected, and implemented the core banking system (CBS) database for the central banks of two countries, India and Mahe, Seychelles. 

Mariami Kupatadze is an Oracle Certified Master since 2016. She is the first OCM in her country, Georgia. Mari is a member of the ACE program. She is a Senior Solutions Architect at FlashGrid Inc and a Director at Flashgrid Georgia LLC. She has more than ten years of experience in Database Administration and has been working totally for twelve companies during her carrier. She is highly specialized in Exadata, Oracle 10g, 11g, 12c, 18c, and 19c Databases, RAC, Data Guard, Golden Gate, and GG MA, Database Optimization and Tuning, EM, Cloud Control, Backup and Recovery, Database Migrations, Oracle Cloud IaaS, Oracle Database Security, Oracle Audit Vault and Database Firewall, Linux Administration. 
She has published several articles in OraWorld e-magazine and Oracle Technology Network. Mari has been a speaker in APAC Oracle Users Groups Community (APACOUC) and Luxembourg Oracle Users Group (LUXOUG). She has written the Oracle Sharding chapter in Oracle High Availability, Disaster Recovery and Cloud Services book. She is a blogger since 2010, published ~300 posts about her experience with Oracle and Linux. Her blog,, has been entered in Top 60 Oracle blogs.

Konstantin Kerekovski is an Oracle professional with more than seven years of experience in the financial services industry. He is a member of the Independent Oracle User Group, Suncoast Oracle User Group, and New York Oracle User Group. He has worked as a senior and lead database administrator with production support duties in the financial services industry. 

Tridib Das is a Senior Database Administrator with more than 9 years’ experience on Oracle and MySQL. Highly specialized in Exadata, ODA, Oracle 10g, 11g, 12c, 18c & 19c Databases, RAC, Data Guard, GoldenGate, Database Optimization and Performance Tuning, EM, Cloud Control, Backup and Recovery, Database Migrations, Oracle Database Security and Database Firewall. Oracle Speaker in Oracle Open World. Extensive expertise in scripting for automation and configuring tools. Strong knowledge of data center migration with zero downtime solutions. Specialized in high availability solutions for MySQL and conversion 
from MySQL to Oracle and vice-versa.