Manual QA & Email Marketing

I’m looking for someone who can jump straight into my live site, work through every step of the user-login and registration flow, and uncover anything that could trip users up—from validation errors to edge-case security issues... (Budget: $250 - $750 USD, Jobs: Building Architecture, Civil Engineering, Email Marketing, Full Stack Development, Interior Design, PHP, React.js, Software Testing, Testing / QA, Website Design)