Custom Xero Invoice Template Creation

I'm looking for a skilled designer to help create new Xero invoice templates.

Requirements:
- Customization needed for:
- Logo and branding
- Custom fields
- Layout changes
- I have a logo but no existing branding guidelines

Ideal Skills and Experience:
- Proficiency in Xero
- Strong design skills
- Experience in creating customizable templates
- Ability to work with existing logos and develop cohesive designs

Please provide samples of previous work.