So is that special job you want. Start working hard at this now. You will trust the human resources department. When you approach a company through its human resources office, you submit to an administrative process that is once removed from the hiring manager. While you're being processed by that first-year personnel clerk who has zero expertise in the work you want to do, the candidate I referred directly to the hiring manager is already having his second interview.
Human resources is a graveyard of job applicants.
Never let human resources be the main conduit of information between you and the hiring manager. You will lose control of the process, and the likelihood that you will be dropped from the running increases dramatically when human resources is in control. Insist on dealing with the hiring manager directly. You will act like an applicant in the interview. After interviewing five candidates in the course of a day, managers commonly cannot recall much about any of them.