Daniel has been writing MySQL tools and automation since 2004. In the early years, he created HackMySQL.com where he published some of the first open-source MySQL tools. He also blogged and wrote technical white papers for several years. From 2008 to 2016 he worked at Percona on the most widely-used open-source MySQL toolkit: Percona Toolkit. He also developed other products like the first versions of Percona Monitoring and Management (PMM). At the 2010 MySQL Conference & Expo, he was named the Community Contributor of the Year. Today, he works at Square as a DBA and Platform Engineer developing tooling and automation to manage thousands of MySQL instances.