Hi, Based on your description, I see you are looking for a developer who can start your project immediately.
I am a senior web developer with extensive development background. I have more than 10 years of development experience , in-depth skills in Website Design development and scripting languages such as PHP, MySQL, HTML, CSS, JavaScript, jQuery, WordPress, Woo-commerce and WordPress plugins and search engine optimization (SEO).
Please contact me to discuss more about this project.
I would be happy to assist you on this project "Create simple widget bottom right, act as persistent link" and in future ones. :)
Thanks