Senior Database Administrator - Remote

Overview

The Wikimedia Foundation is seeking a Senior DBA. Our objective is to make the sum of all human knowledge available to everyone, and we persist most of this knowledge in MariaDB. Our project sites are some of the most highly visited on the internet, with more page views per engineer than any other site.

As a Senior DBA at the Wikimedia Foundation, you will be part of a small, focused team of skilled and experienced engineers. In this role, you will be responsible for ensuring the health of our database systems - including their availability and performance.

In Short

• 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

Requirements

• Advanced level of experience with MariaDB or MySQL database administration as the primary production database as well as replication topologies at scale
• Knowledge of Linux and IO/data storage concepts, internals and troubleshooting
• Proficiency in SQL
• Experience with debugging query performance and schema design
• Experience with MySQL high availability and replication management tooling
• Experience with remotely managing bare-metal servers
• 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
• B.Sc. or M.Sc. in Computer Science or equivalent work experience

Benefits

• Competitive and equitable salary
• Remote-first organization with staff members in 40+ countries
• Opportunity to make a huge impact for a good cause
• Inclusive and equitable workplace