1. Responsible for database maintenance such as MySQL, Redis, Elasticsearch, TiDB, etc., to ensure that the system operates 24/7;

2. Responsible for database performance monitoring and tuning;

3. Responsible for managing daily changes, backups, restorations, expansions, data migrations, etc. of the database;

4. Investigate database failures, analyze and resolve issues, and propose preventive measures.

1. Have 3 years or more of experience in database-related system maintenance; experience with high Internet concurrency and in the e-commerce industry is preferred;

2. Proficient in MySQL, Redis architecture, and operating principles;

3. Familiar with database data security, performance optimization, sales optimization, data migration, disaster recovery strategies, and horizontal scaling;

4. Experience using mainstream products such as Redis, TiDB, Kafka, Elasticsearch, etc. in Internet companies;

5. Familiar with data transmission tools, such as Otter, Cana, etc.;

6. Proficient in one or more programming languages such as Shell, Go, or Python.