Hope you are doing well.
Most people who interested in entering the accounting field usually start their accounting job right after finishing their education, either public accounting or accounting in industry. I believe most colleges/universities have their own career fair now where companies like Big Four will come over and tabling. That would be a great opportunity to talk to the recruiter and get to know the available recruiting schedule and career path. The firm attend these kind of career fair usually will have interview either for internship or full-time job right after the fair. So it would be a great opportunity to get an offer. And I believe most of the schools now have their own career center or something like that devoted to help students get start on their career.
Another resource I would say is go check the employer's website, sometime it has a very detailed career page you can learn how you can get a job in the firm and their expectation.