Senior chemists do much of the same work as other chemists in a lab, but they have several years of research experience and often hold graduate degrees. As a senior chemist, you conduct experiments and analyze testing of elements and compounds for a company or organization. Specific job duties vary, depending on the organization and industry. For example, you may work on product development for a makeup company, test medicinal compounds for a pharmaceutical lab, or examine the safety of natural resources for a government agency. You may also supervise other lab chemists and lab assistants and troubleshoot issues with the research project or equipment. To become a senior chemist, you need a bachelor’s degree in chemistry, biochemistry, or a related field, though many employers prefer candidates with graduate degrees. You also need several years of lab experience to work your way up to a senior chemist position.