Amazon listing and advertising specialist

We are an established and successful amazon professional seller and have been selling on amazon over 10 years now. Currently we are spending over 200K in Sterling Pounds a month on PPC and have already achieved a ROAS at 5.34. We are looking for a highly experienced and skilled Amazon specialist to help us to achieve an even higher ROAS. If you could help us to achieve that, you will get your fair share of reward. You will need to look into the current product listing details include title, bullet points, description, A plus content, brand story etc...to enhance the quality of the listings, as well as looking into the ads itself to optimise it for better ROAS. You will also need to offer an easy-to-understand report to show the achievement of your work. If you are interested in this job, please send me your CV with past working experiences and projects that you have successfully delivered, if you have any amazon certified qualification and the list of tools that you use for listing optimalisation and fine tuning adverts. thanks