Proficient

[Sarah]

One who has made considerable advances in any business, art,science, or branch of learning; an expert; an adept; as, proficientin a trade; a proficient in mathematics, music, etc.

[Sarah]

Skilled, adept, competent.

[Britney]

Powered by a centralized SPC engine, InfinityQS ProFicient enables improved quality from the factory floor and across the enterprise. A software product by InfinityQS

[Kai]

Competent or skilled in doing or using something.

[Mark Zuckerberg]

skilled and experienced: