You see a new job posting on devex.com. It sounds like the perfect fit: great organization, interesting job description, your skills and qualifications match perfectly.
The deadline is in a month.
So you have the next four weeks to prepare your best application, right? Not if you don’t want to risk missing out on this opportunity! With the exception of some employers that I will get into later, the rule of thumb is the sooner you can submit an application, the better.