You could always grow it out and then tie it back if you are going for a job. But it depends on what kind of job you're going for. If it's IT or back office then it probably doesn't matter, once you're clean. But if its a more customer facing role then there might be an expectation that you have it shorter.

But once it's neat then it shouldn't really matter. I'd say grow it out now, and sure in a year's time or whenever you may want to cut it anyway. I used to grow mine out, then get a blade 8, then grow out again, blade 8 etc. Until it all fell out and now I've no choice in the matter!