E-commerce Site Optimization

I need an experienced developer to tidy up my existing e-commerce site. The site is currently facing several issues that need to be resolved for a smoother user experience. Key areas for improvement: - User registration/login: Simplify and secure the process... (Budget: $750 - $1500 AUD, Jobs: HTML, PHP, Web Application, Web Design, Web Development, Website Design, Website Optimization, WordPress)