Wikimedia Foundation - Staff Database Administrator

• Advanced level of experience with MariaDB or MySQL database administration as the primary production database, including complex replication topologies at scale • Advanced proficiency in SQL and query/schema optimization • Experience with debugging query performance and schema design • Experience with high traffic and highly available website architectures and operations • Experience with MySQL high availability and replication management tooling • Knowledge of Linux and IO/data storage concepts, internals and troubleshooting (we run Linux in production exclusively) • 6+ years experience in a hands-on DBA role as part of a team • Solid English language skills • Ability to travel 1-2 times a year • Ability to work independently in a fast paced environment, as an effective part of a globally distributed team, including ticket tracking systems and asynchronous communication tools • B.Sc. or M.Sc. in Computer Science, or equivalent work experience • Proficiency at automation/programming/scripting (Python) and standard software development practices • Experience with SRE practices and tooling, including configuration management & orchestration strongly preferred. • strongly • Experience with LAMP stack technologies (PHP/HHVM, memcached/Redis) - MediaWiki experience is a definite plus • Experience with other advanced distributed storage and database systems (Swift, Ceph, Cassandra, etc.) is a plus • Strong track record of open source contributions is a major plus • The Wikimedia Foundation is the nonprofit organization that operates Wikipedia and the other Wikimedia free knowledge projects. Our vision is a world in which every single human can freely share in the sum of all knowledge. We believe that everyone has the potential to contribute something to our shared knowledge, and that everyone should be able to access that knowledge freely. We host Wikipedia and the Wikimedia projects, build software experiences for reading, contributing, and sharing Wikimedia content, support the volunteer communities and partners who make Wikimedia possible, and advocate for policies that enable Wikimedia and free knowledge to thrive. • The Wikimedia Foundation is a charitable, not-for-profit organization that relies on donations. We receive donations from millions of individuals around the world, with an average donation of about $15. We also receive donations through institutional grants and gifts. The Wikimedia Foundation is a United States 501(c)(3) tax-exempt organization with offices in San Francisco, California, USA. • News from across the Wikimedia movement • Wikimedia Blog • Wikimedia 2030