<p>Nothing is set in stone, and it would be silly for companies to close the door completely, but for the top tier, large firms, they operate almost like schools.</p>
<p>Small companies hire consistently, filling needs and gaps in resourcing. They generally cannot afford to hire a “class” of new people, so there are new hires wandering around all of the time. </p>
<p>Large companies, on the other hand, have application periods and truly do hire a “class” of new employees. Generally, they will have a single start date for, potentially, 500-1,000 new employees worldwide. They may have a training week where all new hires travel to a specific place (most of the time it’s the company’s corporate HQ, but sometimes it is a fun place like an island). </p>
<p>These large companies have a hiring process that starts in August, when they give return offers to their summer rising senior interns. They then have HR go to campuses in September and early October, giving information sessions and holding on-campus interviews. Second round interviews, known as super days, are held, usually at HQ (but sometimes at satellite offices); these interviews are held in mid to late October. Offers go out in late October or early November, and as applicants decline offers, they will get back to the backup candidates throughout November and sometimes into early December. After full time recruitment is done, the summer internship recruitment cycle starts; HR spends December working through some logistics for their new hires and prepping their pitches for the spring. In January, the same cycle begins, except for summer interns; this cycle continues until April.</p>
<p>Do all companies follow this mold? No. Is it completely impossible to get a job at a top company outside of this cycle? No. But is it easy or likely that someone will get such a job? Also no. There are a decent number of companies that do not accept entry-level applications from outside of the college recruitment process, and there are also a decent number of companies that “accept” applications from outside the recruitment process but don’t really bother looking at them.</p>
<p>It is still worth looking into top firms, but there are a few things to keep in mind. First, many have already closed the door for this cycle. It may seem short-sighted, but they are okay taking that risk when they have upwards of 100,000 people apply for 500 jobs. Second, the best jobs are not necessarily with top firms; it is perfectly fine and acceptable to work at a second or third tier company - you can get just as good of experience, potentially in different areas, though you will have a harder time getting into b-school if you choose to get an MBA. Third, it is a mistake to wait until after graduating to begin looking for a job.</p>