Every manufactured product undergoes certain processes before reaching the consumers, and process engineers are in charge of studying these processes within the context of chemical engineering. They evaluate efficiency, quality and safety of the process, and they make suggestions on how to improve the process when needed.They evaluate procedures such as chemical interactions, equipment design, and the system performance involved with the manufacturing of that particular product. When processes need improvements, it is up to the process engineer to recommend changes. In some cases, the engineer will develop new equipment designs. These engineers will also have to document their work using diagrams and charts, which are passed along to companies' manufacturing and production departments.Engineers can work as a salaried member of company or be self-employed. Extensive production and manufacturing knowledge is needed in order to do this job proficiently. In order to become a process engineer, a bachelor’s degree in engineering or another technical field is needed, as well as several years of experience.