The responsibilities of an environmental services technician involve working to maintain a healthy and clean environment within the employer’s buildings. In this career, you usually work in hospitals or other healthcare facilities such as clinics or residential care homes. Your job duties may involve janitorial tasks and cleaning/disinfecting machinery or surfaces within the building. In some cases, someone else cleans areas or items (such as washing linens), but you are responsible for ensuring the overall cleanliness of rooms and equipment, and ensuring staff can access the clean items when needed.