Senior Database Administrator

  • China (Remote)

Spread the love

Job Responsibilities:

  • It is responsible for building a database disaster recovery or active-active environment in the dual-availability zones of two regions and three centers, and ensuring that the reliability of the database system reaches 99.9%.
  • Responsible for ensuring the availability and security of data can take effective preventive measures, and can build homogeneous and heterogeneous backup and recovery (1 minute level or even second level).
  • Responsible for deploying and maintaining database and core middleware cluster environments. Responsible for maintaining the database and core middleware fault handling.
  • Responsible for maintaining the database, core middleware SQL statement optimization, and various performance optimizations.
  • Establish O&M specifications for databases and core middleware, and build CD tools and processes.
  • User data security audit specifications and standards are formulated to meet financial level compliance requirements.
  • Can give reasonable database design guidance and evaluation in the software design stage.
  • Responsible for promoting the improvement of database and core middleware monitoring and alarming, as well as monitoring alarm response processing closed loop.
  • Establish a suitable inspection system, which can achieve short-term manual inspection, long-term automatic inspection, and build automatic trend problem awareness inspection capabilities.
  • Building database-level SLA/SLO/SLI can quantify the output of DB team work and guidance for management work, and improve the stability of business systems.
  • Prepare DB-related documents and regularly share technical achievements with all employees.

Job requirements:

  • Full-time bachelor degree or above, major in computer, communication and other IT related majors.
  • More than five years of practical experience, with independent experiment and research spirit. Have experience in the growth of small, medium and large data volumes, and have more than 3 years of experience in maintaining the production environment of medium and large Internet/financial enterprises.
  • Native spoken in English and Mandarin
  • Proficient in Xenon MySQL, Redis, OceanBase, ClickHouse, PgSQL, MongoDB, Elasticsearch cluster, master-slave, distributed architecture operating principle, architecture design, data structure design.
  • Familiar with MySQL and Redis master-slave replication, read/write separation, database shading and table design, and familiar with the differences and characteristics of various branches of MySQL such as MariaDB.
  • Familiar with various database selection and comparison methods, benchmark stress testing, Troubleshooting, Performance Tuning.
  • Familiar with the principles of CentOS/Debian mainstream Linux operating system, familiar with Linux shell, master the performance tuning analysis and troubleshooting of the database running on this environment.
  • Familiar with the mainstream storage type interface and RAID level, so that the performance of different types of databases is rationalized.
  • Have used at least one programming language Python/Golang/Java/C, and have the best network programming.
  • Cooperate with the relevant work of business projects, and refuse to build cars behind closed doors for technology.
  • Be able to understand the cutting-edge technologies of SQL and NoSQL and apply them to business systems.


  • Priority is given to routine maintenance of TBPB levels with high concurrency and massive data.
  • Experience in large-scale Internet industry is preferred.
  • Prioritize understanding MySQL source code.

Job Highlights:

  • Design, development and optimization of various financial business systems.
  • Design highly scalable systems and use technology to realize the complexity and diversity of business requirements.
  • Experience the improvement of middleware by large fintech companies to improve technical vision.

Interested in joining our team and explore your talents in different parts of the world? Worry not, a work visa will be provided by Doo Group too, if applicable.

Please send in your resume, and personal as well as professional certificates, along with your job application to our HR mailbox: [email protected]

We will contact you soon if the requirements are met.