Wikimedia Foundation is hiring a
Senior Database Administrator

Summary

Join the Wikimedia Foundation as a Senior Database Administrator and contribute to making the sum of all human knowledge available to everyone. As a key member of our small, focused team of skilled engineers, you will be responsible for ensuring the health of our database systems, including their availability and performance.

Requirements

• Advanced level of experience with MariaDB or MySQL database administration and replication topologies at scale
• Proficiency in SQL
• Experience with debugging query performance and schema design
• Experience with MySQL high availability and replication management tooling
• Knowledge of Linux and IO/data storage concepts, internals and troubleshooting
• Experience with managing remotely both bare-metal servers and virtualized environments
• 5+ years experience in a hands-on DBA role as part of a team
• Experience with high traffic and highly available website architectures and operations
• Strong English language skills
• 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

Responsibilities

• Implementation, maintenance and troubleshooting of relational database systems in production and staging environments
• Handling database version upgrades, testing and working with upstream on bug identification and resolution
• Configuring replication, designing schema optimizations and running schema changes
• Monitoring, debugging and improving query performance
• Improving observability (alerting, metrics, monitoring) of database infrastructure
• Multi-datacenter replication topology design, capacity and infrastructure planning
• Taking part in incident response, diagnosis and follow-up on system outages or alerts across Wikimedia’s production infrastructure and participating in an on call rotation
• Sharing our values and work in accordance with them

Benefits

• Health insurance
• Retirement benefits
• Paid time off
• Remote work, flexible hours