Applying for new jobs is stressful. It can feel like you're not getting anywhere fast, especially if you never receive feedback. If you want to get your job search on the fast track, just sending your resume and application into the company's system might not be enough.
When there's an engineering position open that sounds like your dream job, you may find it harder to prepare your resume than usual. Many people agonize over how to detail and format their resume to make the best impression on a hiring manager.
Most hiring managers have been there: you have a highly qualified candidate that you've been actively pursuing for an open position. They've been in for an interview or two and passed several levels of screening. Then, when the time comes to fill that open position, you offer them the job--only to discover that their interest has disappeared.
It can be discouraging looking for a new job in the mining industry as an older worker. Throughout the mining industry, many companies are seeking to hire younger employees in the hopes they can groom them into employees who will stay with the company for 20 years or more.