1.More than 10 years experience in Oracle database administration, including Oracle 11g, 12c, 19c, expertise in installation, backup, recovery, high availability (ADG, RAC&OGG) and performance tuning. Rich knowledge of Oracle's architecture, including memory structure, physical storage, SQL Tuning and so on. Be familiar with EMCC 13c. Now focus on the Oracle database 23ai exploration and best practice.
2.Hands-on experience with Oracle Exadata machine maintenance, including X8, X8M and X9M. Be familiar with Oracle Linux, ILOM, storage software, IB/RoCE switch, management switch and so on. Skilled in maintain and monitor Exadata by using EMCC.
3.MySQL 5.7, 8.0. Mastering the knowledge of the architecture of MySQL, including memory structure, physical storage, SQL Tuning and so on.
4.Hands-on experience with Linux system administration, be able to analyze and solve problems at both of the database and operating system level.
5.Familiar with other databases including Redis, MongoDB, ElasticSearch, Neo4j, Hadoop, PostgreSQL and so on. Understand the advantages and disadvantages of various databases.

Oracle Certification:
2023.10 Oracle Database 19c Administrator Certified Master
2023.5 Oracle Exadata Database Machine X9M Certified Implementation Specialist
2022.2 Oracle Certified Professional, MySQL 8.0 Database Administrator
2017.9 Oracle Database 12c Administrator Certified Master
2016.9 Oracle Database 11g Administrator Certified Master