"extensive professional experience" is correct and usable in written English.
You can use it when you are trying to describe someone's qualifications or backgrounds. For example, "John has extensive professional experience in the accounting sector and is highly qualified for the job."
Many new MPs have extensive professional experience outside politics.
Before attending Yale, Jessica developed extensive professional experience in the bio-tech manufacturing sector.
This detrimental effect is a natural consequence of extensive professional experience and the possession of large amounts of domain knowledge.
Applicants do not need to have a comprehensive academic background or extensive professional experience in their field, but they must demonstrate familiarity with major issues and artists.
The program's administration and faculty have extensive professional experience in the sports industry and are available to meet with and advise you.
Jung Moon has extensive professional experience in technology cross-border between Korea and Silicon Valley in various areas including IT, BT, and Clean Tech in his professional career.
He has extensive professional working experience in the private sector and has worked for the World Health Organization and the US Department of State among others.
But there was no such flexibility for women, not even women with extensive professional flight experience, outstanding physical condition and tiny, lightweight bodies.
He's an Australian born chef with extensive professional working experience in Japan.
The participating home visitors had extensive professional nursing experience (mean 20 years; range 5-38 yeand) and had been NFP nurse home visitors for an average of four years.
In this paper, we describe an extensive professional development experience for middle school biology teachers designed to develop teachers' neuroscience content knowledge and inquiry-based pedagogical practices.
