Most CVs don’t fail because the person isn’t good enough. They fail because the document doesn’t say what that person is actually worth and because their LinkedIn says something different again.
I rebuild both.
The CV gets written from scratch and pointed at one clear target, rather than being a general document you send everywhere.
For LinkedIn, I log in and do it myself headline, About section, experience, skills and keywords so that when recruiters search for someone like you, your profile actually comes up.
You don’t do any of the writing. Send me what you’ve got, tell me the roles you’re going for, and I’ll hand both back finished and matching.