vigorously energetic or forceful; "a high-octane sales manager"; "a high-octane marketing plan"; "high-powered executives"; "a high-voltage theatrical entrepreneur"
Someone who is high-powered or has a high-powered job has a very important and responsible job which requires a lot of ability. I had a very high-powered senior job in publishing
(used of microscopes) capable of a high degree of magnification; "a high-powered microscope
A high-powered machine or piece of equipment is very powerful and efficient. high powered lasers
(used of microscopes) capable of a high degree of magnification; "a high-powered microscope"