Top Rated

◆ 9 + years as a senior expert in MySQL/MariaDB/Percona/PostgreSQL/Oracle database 

◆ Good at MySQL 5.5/5.6/5.7/8.0/8.1 backup recovery, SQL tuning, monitoring operation and maintenance, high availability architecture design, etc., proficient in Innodb, High Availability, Replication, MySQL NDB Cluster,Innodb Cluster, Scalability Solutions, and MySQL Enterprise Suite and other related technical fields. 

◆ Good at PostgreSQL 9/10/11/12/13/14/15 installation, configuration, backup and recovery, security, query optimization, high-availability, disaster recovery, extensions (PostGIS, PL/Python, pgAdmin), scaling solutions (sharding, partitioning, connection pooling), and PostgreSQL Enterprise Edition and related tools (pgBackRest, pgpool-II). 

◆ Good at Oracle 11g/12C/19C/21C backup recovery, SQL tuning, monitoring operation, and maintenance, high availability architecture design, and is proficient in RAC, DG/ADG, OGG, PDB/CBD, RMAN, EXP, and XTTS and other related technical fields.

◆ Get Cisco \ Oracle \ MySQL \ AWS \ ITIL \ PMP \ TOGAF certification 

◆ Worked for the world's top three ICT and IoT solution providers, providing database-related technical support and course training for major operators and banking and financial enterprises. 

◆ Accumulatively managed 5000+ databases and 300TB+ data. 

I hope to use my years of work experience and professional knowledge to help you solve the problems encountered in MySQL/PostgreSQL/Oracle database, and at the same time provide relevant course training.