If you need a person who you can trust, rely upon, discuss your problems via email/Skype and don't want to worry about end-result product.
If you don't want a lousy freelancer hiding from you, busy in many projects and delaying your project.
If your problem falls under custom admin panel, custom web application, custom management system, new features, modifications, coding cleanup, website speed optimization, troubleshooting errors, revamping old apps/websites, refactoring or a website transfer.
Welcome! Nice to meet you :)