When describing your career history on your resume, you should list all the positions you held; even if it is with the same company. If you have worked for the same company for many years, it is a good idea to list all the different positions and roles that you had during this time. Be sure to include the different responsibilities you had and you can include the skills you developed during each role on your resume. Remember, you resume is a powerful tool and potential employers love seeing career progression.