Resumes between 475-600 words have a higher interview rate with a sharp cliff on either end. -- Try to fit it all on one page, 2 pages max.
Have enough keywords to match ~50% of the job requirements, but don't overdo it.
No Objective Section (Unless you're wanting it to take place of a cover letter)
Every 3 sentences, use at least 1 number to demonstrate concrete impact Hovering around 20% of the content having numbers