Your profile
Your profile lives at /u/your-handle and is built from your work. It shows your name, bio, location and website, alongside the changes you have written, the reviews you have left, the stacks you own, and the groups you are in.
Edit the top half under Settings. Your handle and email are shown but not editable: changing a handle would break every link and every review attribution pointing at it.
The counts are real. Reviews you leave on other people's work count as much as changes you write, because reviewing is work.
Your page
Every account also gets one page of its own at /u/your-handle/page-view. It is a single Markdown document you control. Edit it under Settings, Your page.
It is unpublished until you tick the box, and while unpublished only you can see it. Once published, anyone with the link can read it.
What to put on it
This is the link you put on a resume, so write it for someone who has thirty seconds. What you build, what you are good at, two or three things worth looking at with links to the stacks, and how to reach you.
What it supports
Standard Markdown: headings, bold and italic, lists, links, images over http and https, block quotes, code blocks and inline code, tables, and horizontal rules.
What it does not support, and why
Raw HTML is escaped rather than rendered. If you write a <script> tag, it appears as text.
This is deliberate and it is not going to change. These pages are served from the same domain as everyone else's session cookie. One person's script tag would be everyone else's account. Every link you write also gets rel="nofollow noopener noreferrer" and opens in a new tab, and any link scheme other than http, https or mailto is dropped.
Pages are capped at a hundred thousand characters, which is far more than anyone needs for a page about themselves.
Being found
People search covers handles, display names and bios, so write a bio. Featured stacks and groups appear on Explore, which is the other way people find work here.