A junior designer works closely under the supervision of a senior or lead designer to assist with design-related tasks. This entry-level position is often the gateway to advancing into a career as a graphic designer. As a junior designer, your job duties usually involve working on smaller design tasks for multiple projects, such as designing page layouts, correcting colors within the design, and creating web banners. These professionals are often employed by marketing agencies that specialize in advertising-related design projects. The experience gained as a junior designer can be invaluable for your career.