Part-Time Professional Copywriter Needed

I'm seeking a part-time copywriter for 30 hours a week. The role involves crafting various pieces of collateral, including:

- Emails and email journeys
- Landing pages
- Marketing digital and print collateral

Key requirements:
- Ability to write professionally and formally
- Experience in promoting services and consultancy
- Proficiency in using AI tools like ChatGPT is a plus, but must be able to write independently without them

Ideal candidates should have:
- Proven copywriting experience
- Strong portfolio showcasing professional tone
- Ability to manage time effectively and meet deadlines
- Responsive to myself and my team during the hours agreed upon
- Must speak, read and write English (US)

Please provide samples of previous work. Looking forward to your proposals!