Paid Google/FB Ads expert & Retargetting ads & Display Ads

We are looking for a person to help us get more traffic on our website for an accounting and tax firm, Straight Talk CPAs. We are getting good traffic on the website every month with organic SEO. We would like to optimize the ROI with retargeting the users on our website as well as bringing new traffic. We would like to hire a person who has experience with this.