Our client is a community-developed, commercially supported fork of the MySQL relational database management system, making a huge impact on the world. 
 

Xpand is the distributed SQL offering of the Client and is solving one of the most difficult open problems in the software database industry today: scaling transactional workloads. They’ve built our own distributed relational database from the ground up and integrated with MariaDB. Now they are looking for smart and motivated folks to join a small team of developers and take this technology to the next level. They work on:

• C codebase with a custom standard library
• Database fundamentals: B-trees, logging, and recovery, MVCC
• A rule-based, cost-based query planner with top-down optimization similar to Cascades Framework
• An MPP, distributed database with unique query planning challenges that are more complicated (and more interesting) than a single node database

  Qualifications

  You should be someone with 3+ years of experience with query planner development and:

• An understanding of table statistics and cardinality estimation
• Familiarity with the top-down query optimization framework
• Experience with cost modeling
• Experience with development of analytics features for SQL