Professional QR Code Tool Website

I'm looking for a talented WordPress developer to design a website for my QR code generator tool, that is https://qrartly.com.

Key Requirements:
- High scores on GTmetrix and PageSpeed tests
- SEO-friendly
- Professional and corporate design style
- Blog section
- Custom QR code generator tool
- User registration and login features
- Need assistance in selecting color schemes
Home page, feature page, price page, about page and contact us page
Ideal Skills and Experience:
- Strong background in WordPress development
- Proven experience with SEO and performance optimization
- Ability to create professional and corporate designs
- Familiarity with user registration and login functionalities
- Proficient in graphic design for a cohesive look

Please provide examples of previous work and a brief outline of your approach.