"deeply skilled" is correct and usable in written English.
You can use it when you want to describe someone who has a high level or mastery of a certain skill. For example, "She is a deeply skilled chef, making masterpieces out of simple ingredients."
And he was deeply skilled as a mediator in the Middle East.
Artists in those days trained for years in drawing, painting and sculpting, under exacting apprenticeship conditions, and when they did start making art in their own right, it was a deeply skilled and difficult enterprise.
Mr. Reyes was sitting near the tarmac, barefoot in khaki shorts and a fishing shirt, accompanied by two of his crew: Exis Velasquez, a guide with piercing eyes and the bearing of a fastball pitcher; and Carlos Salazar, deaf and silent, a deeply skilled young captain, who handled his boat as if it were an extension of his own body.
Nor is there a respectful bow, much deserved, to the thousands of unknown, selfless, deeply skilled bureaucrats who, since the Reagan years, have been pilloried but who, since the Franklin D. Roosevelt years, have made the country, or at least parts of its government, work.
(And by "talent" we mean workers found at every level of the firm, not just the highly trained and deeply skilled knowledge workers one typically thinks of as talent). From the talent side of the equation the key requirement for institutional success is to move from scalable efficiency to scalable learning.
If you're deeply skilled in one area, your reputation alone will help you build the brand you want.
America's edge in the global economy is based on our deeply educated and skilled workers that comprise one of the most productive workforces in the world.
"Being deeply learned and skilled, being well trained and using well spoken words; This is good luck" Resilience champions seem to have been a theme this week on the Living page.
But those who do, are seriously skilled, deeply trained -- and even more maniacally driven, willing to throw their entire life into the scrum and face the harrowing battle every...freaking...single...day...day
Highly skilled and deeply principled, he is an unassuming figure.
Mr. Ferguson is regarded as a skilled manager deeply versed in the mechanics of the financial system.
