Earn your high school diploma if you have not already finished school. Many of the positions within a public transportation's organization require this basic level of education. Even if the job you want to apply for does not hold this requirement, think ahead and get your degree in case the next job you want requires it.
Search for jobs listings in the public transportation field to see what openings are available. As with other governmental agencies, subway systems employ a wide range of people in different fields and occupations. In addition to using your local subway's website as a starting point, the American Public Transportation Association (APTA) website has a listing of career opportunities (see Resources below).
Get your state driver's license and become a careful driver. Working as a security officer, truck driver or train operator for the subway requires a driver's license.
Fill out the job application of the position within the subway for which you want to apply. Be sure to update your resume and include it with the application package.
Read about your potential employer before you interview for a job. Many large-city subway systems have long and interesting histories, such as the London Underground, which began operations in 1863. Showing that you are serious about the company's roots can help you make a good first impression.
Be flexible about the hours you can work if you are offered a job with the subway. Stations are open from very early in the morning until midnight or even later. If you will be employed inside a train station, you may be expected to participate in a rotation of these unpopular hours.
