Resume writer here. A good one page resume is a strong signal from a candidate IMO and experience. It tells the reader "I don't need to tell you every minute d

Resume writer here. A good one page resume is a strong signal from a candidate IMO and experience. It tells the reader "I don't need to tell you every minute detail of my career to impress you. I want to start a conversation, and I think this one page detail is enough for you to make the decision to start that conversation." I'll write a one page resume and a longer form resume for many clients. The longer form resume can be useful during the actual interview, as it can provide the interviewer with some fodder to ask about from the applicant's experience. A one page resume also tells the reader "I don't want to burden you with more information than you need". When an applicant sends a five-page resume to a company, there is some tacit expectation that the applicant wants the recipient to read the whole thing (otherwise, why did he/she include five pages?). That's an unnecessary burden to put on someone. A single page resume isn't always entirely practical, but there are ways to make it work even for people with 10 or 20 years of experience. Keep in mind that a resume doesn't need to include every single job (the details of the oldest jobs of technologists tend to be almost entirely irrelevant). The resume also has to be written with the mindset that the reader isn't likely qualified to even determine what the candidate does. You have to assume the reader (when human) is looking for keywords in the same way a machine (applicant tracking system) is, so including a summary that simplifies it for the reader is useful. When the CTO of a startup tells the temp at the front desk "You're screening our resumes today, only send along Python developers with over five years of experience", a resume summary that begins with "Python Developer with five years of experience..." checks all the reader's boxes right away. When writing the resume, make it as easy as possible for the reader to figure out who you are and what you do. Don't use inside baseball terms or corporate lingo that doesn't translate. Remove noise to allow hiring signal to come through.