Metorikku is an open-source library that simplifies the writing and execution of ETLs on top of Apache Spark. Using the Metorikku library, users can create complex ETL jobs by only relying on simple configuration files and SQL commands. Moreover, the library includes an infrastructure for creating unit tests. In this talk, we will show how we leveraged Metorikku at Yotpo and made spark accessible to our entire R&D.