Chrome extension for css selectors

Hi I am looking forward to hire chrome extension developer who has previously worked on picking up specific css selectors using the extension and saving them into Mongo DB database
The developer also needs to build rudimentary login system so users can login into the chrome extension select certain css elements from webpages and save the css selectors for a given URL in MongoDB

Please apply only if you have previous experience picking up CSS selectors through chrome extension
Looking forward to start work immediately

Freelancers and companies both can apply