Position: Oracle Database Performance Specialist
Category: SQL
English level: intermediate
Years of experience: 11


I am an Oracle RDBMS specialist with over 15 years of experience as Developer and DBA. Experienced with OLTP and Data Warehouses (RAC&Single instance). Specializes in Database Designing, Performance Tuning and troubleshooting.

Skills
• More than 10 years of designing, monitoring and improving performance of Oracle Database (since Oracle DB 8i);
• Experienced in finding root causes of oracle database level performance problems and creating appropriate plan of solutions
• Extensive experience in SQL statement level optimization, designing of database(logical and physical level)
• Extensive experience in implementing and using important feature of Oracle RDBMS like Partitioning, Parallel Query Processing, correct and effective using /design B-Tree and Bitmap Indexes, Materialized Views, Advanced replication and etc.
• Good understanding of Oracle Database Engine`s work
• Investigates Optimizer related issues in Oracle RDBMS (Some of them were published via my articles, like incorrect identifying TOP-N frequent values, problems in histogram construction and incrementally updating in Oracle Database 12c R2, suggested the enhancements for constructing Hybrid Histogram).
• Excellent knowledge of SQL ,PL/SQL,RAC,Grid Control and Data Guard.
• Experienced in Linux and Unix based operation systems.

Certificates:
Oracle Database 11g Certified Master,
Certified 11g Performance Tuning Expert, 
Oracle Database 10g Certified Professional