Have you ever heard an engineer say, 'I don't know why it doesn't work, it works on my machine'? Have you had to wait for SysOps to run a data change across multiple environments, and realize they forgot to run it somewhere? Managing your data modifications can be a major headache, especially for larger teams. Automating these changes has improved productivity and deployment consistency at SecondMarket who have open sourced a tool called Mongeez to help resolve this issue. This tool, loosely based on liquibase, automates deployment of mongodb data changes whilst maintaining consistency with your codebase. Michael Lysaght & Oleksii Iepishkin will talk about the problem and their solution.