In the top right corner select "Developer Account" and then "Create account":

 

On the next page fill in the required information to create the account and click "Get Started":

 

An Email will be sent to verify and activate the new account. You will see the following confirmation screen:

 

You should receive an email from DocuSign that looks like the following:

 

Click on "Activate" and a page will open in your browser to allow you to select a password for your new account:

 

Once you have completed the steps visit the following page:

The Developer Account Home page that looks like this: