When I graduated from college in 2013, the common advice was to keep your resume to one printed page. Because people realized that job applications were all online and people rarely handled physical resumes anymore, that advice started to shift to "you can go onto a second page, if it is warranted." (My personal opinion at the time was that if an employer wasn't willing to expend a staple on my resume, then they probably won't worth working for).
I'm of the opinion that a two page resume is fine. Three pages would probably be fine if you needed to elaborate on something really niche like research, but at that point we're getting into CV territory (note that in the US, resume and CV are not the same and a CV is used primarily in academic or scientific settings; a CV is supposed to be exhaustive; a resume is not).
Funny that we're having this conversation here, though, because based on this particular example: the author's resume is fine. It needs punching up, and he should probably turn some of those paragraphs into bulleted lists, but I don't think it's too long.
Matches my experience. 2 page resume is standard for senior careers, everything below should be 1 page. The reason is simple: I'm evaluating if you are able to summarize the most important points for how you're fitting into this role into a very limited space. This is a important skill that transfers to many other areas and isn't obvious just by looking at the extensive list of your degrees and job positions. I trashed applications for the sole reason when i felt that the applicant missed the whole point of why i'm reading their resume. Yet some hiring folks may prefer it the other way around so it's also a cultural fit filter in some way.
I'm of the opinion that a two page resume is fine. Three pages would probably be fine if you needed to elaborate on something really niche like research, but at that point we're getting into CV territory (note that in the US, resume and CV are not the same and a CV is used primarily in academic or scientific settings; a CV is supposed to be exhaustive; a resume is not).
Funny that we're having this conversation here, though, because based on this particular example: the author's resume is fine. It needs punching up, and he should probably turn some of those paragraphs into bulleted lists, but I don't think it's too long.