Increase Conversions via SEO Marketing

I am looking for a conversion-focused specialist for my website, https://myproduct.co.il/, which is a simple bulletin board open to the general public with multiple categories. The primary goal is to drive more users to post ads on the site and, ultimately, opt for featured and premium ad placements... (Budget: $30 - $250 USD, Jobs: Content Marketing, Conversion Rate Optimization, Google Analytics, Internet Marketing, Keyword Research, Link Building, Marketing, SEO)