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As a Staff Database Administrator at Wikimedia, you will play a key role in ensuring the health and performance of production relational DB systems. Your responsibilities will include deploying, maintaining, and troubleshooting MariaDB/MySQL in production, development, and staging environments. You will design, implement, and automate multi-site replication topologies, advise on database schemas and production schema changes, monitor, debug, and optimize query performance, and improve observability with alerts, metrics, and monitoring.
This role requires advanced SQL and query/schema optimization skills, Linux knowledge, and IO/storage concepts. You should have at least 6 years of hands-on DBA experience and the ability to travel 1-2 times per year. A B.Sc. or M.Sc. in Computer Science or equivalent is preferred, along with English language proficiency. Experience with high availability and replication tooling is a plus in this remote-first organization with a global team across 40+ countries.
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