When it comes to describing someone's progress in a particular field, there are many synonyms for the term "advanced position." Some of the most common alternatives to this phrase include "highly skilled," "expert," "experienced," "seasoned," "accomplished," "top-notch," and "proficient." Other synonyms that can be used to describe a person who has achieved an advanced position in their career include "masterful," "distinguished," "outstanding," "eminent," and "preeminent." These terms can help to signify a person's level of expertise in their field and the hard work that they have put in to reach this point in their career.