Dirk Müller was born on March 13, 1968 in Essen, Germany, the son of Horst Müller, a technical school teacher, and Karin Müller, a housewife and secretary at the RWTH. He lived and grew up in the city of Aachen with his older sister in the family home. Dirk attended elementary school, junior high school and high school, was a lively, restless and interested in learning boy, and was very fond of sports, his forte being athletics. Given his competent character, he participated in several competitions.
After finishing high school he entered the University of Aachen, where he studied industrial engineering. At this stage he strived to achieve his goals, but not without neglecting his social life. Here he made great friendships that lasted all his life.
After finishing his studies, he traveled to South Africa for an internship, he was there for a few months, he got to know the world from another perspective. After finishing his internship and studies he got his first job at P&G, where he stayed for more than 20 years, where he held different positions, he was fascinated to start new projects and always eager to learn new things, he enjoyed and had the possibility to go abroad with the company.