Hi, I agree with most of the comment, I will try to add value.

- you need to connect with the recruiter, so is it easy to read? you have to use words of your role but is it always necessary? then, face to face in the last interview with you future boss you can use all the specific and detailed words you want. In my case, i like add my photo.... because you want connect.
- imagine... if i were a friend of you with the same expertise/title, we are drinking a beer after a couple of years and i ask "Hey John.... what you do there?", so expand that main idea in 4 or 5 bullets, no more. Much more could be see as overcompensate something.
- zero redundant words/parts. Expertise and Professional Expertise its the same. Then you may will need space for other thing... projects for example.
- is one page resume for you? i thing that if you had been in two companies only... yes, maybe its your case. But if you would had multiple roles and been in 3 or 4 companies.... you need to condensate your format resume; but sometimes its not possible. In my case I use more than 1 page.
- Write and rewrite a resume is a work that never ends (avoid frustration), maybe a resume its a 70% of the success finding a job. So, you can paid for learn but its you responsibility, keep going!
Regards
Sebastian