Each individual employer has their own qualifications and requirements for summer internship candidates. Some internships require that you are currently pursuing a degree in a specific industry. For example, if you want to intern at a law firm, they may only seek applicants who are enrolled in a law school program. In addition, some employers have minimum GPA requirements. The required skills also depend on the industry but, generally, you must have excellent multi-tasking and communication abilities. If you want to obtain a summer engineering internship, then having strong math and analytical skills is helpful. Summer internships have an application process, which may include an essay or cover letter in which you describe why you are a good fit for the internship.