citadelle systems AG is an IT system house group based in Essen, Germany, with the goal of establishing a new champion in the system house market. Their offerings range from traditional hardware and infrastructure services to cloud and managed service solutions, as well as strategic IT management consulting. In just six years, the group has expanded to 13 locations with 185 employees and has been recognized as one of the top three service providers in Germany in both 2023 and 2024. The company emphasizes a collaborative and agile work environment, providing opportunities for remote work and regular team gatherings to foster a strong company culture.