proficient

Synonyms: These adjectives mean having or showing knowledge, ability, or skill, as in a profession or field of study. Proficient implies an advanced degree of competence acquired through training: is proficient in Greek and Latin.
Adept suggests a natural aptitude improved by practice: became adept at cutting the fabric without using a pattern.
Skilled implies sound, thorough competence and often mastery, as in an art, craft, or trade: a skilled gymnast who won an Olympic medal.
Skillful adds to skilled the idea of natural dexterity in performance or achievement: is skillful in the use of the hand loom.
Expert applies to one with consummate skill and command: an expert violinist who played the sonata flawlessly.