Tenant Portal Integration

I need a skilled developer to integrate a tenant portal into my existing website. I have source to a fully functioning tenant portal built in React. I need the portal setup and integrated to the main site and made accessible to user via navigation button. The Implementation setup should include the following:

1. Build the React app: npm run build
2. Upload dist/ folder contents to subdomain hosting
3. Configure subdomain DNS and SSL
4. Add navigation links from WordPress to portal

** I'm open to other possible integration options like "Deploying the portal in a subdirectory of my WordPress site" or "Integrating Portal via WordPress Plugin Integration".

Key Requirements:
- Integrate Portal with my existing website seamlessly.
- Test Portal to ensure it's functioning well and all capabilities and element working as expected

Ideal Skills and Experience:
- Proficiency in web development (HTML, CSS, JavaScript & React).
- Experience with integrating payment systems.
- Familiarity with maintenance request and document management systems.
- Strong design implementation skills.

Please provide samples of similar work done.