This document provides an overview of bringing a company's programmatic advertising efforts in-house. It introduces the author and their experience, outlines the reasons for bringing programmatic in-house including greater control and lower costs. It describes how the in-house team was structured initially and how it has grown, and compares in-house efforts to working with a managed service partner. It also highlights some programmatic creative innovations the team has implemented, the importance of bid modeling, and what they hope to achieve in the future including more automation.