SAAS Customization and Feature Development

I need a skilled developer to help deploy Bolna and customize my SAAS product.

Key tasks include:
- Developing new features: User roles & permissions, and messaging functionality.
- Integrating with CRM systems and email marketing platforms.

Ideal skills and experience:
- SAAS development expertise.
- Experience with Bolna.
- Strong backend and frontend development skills.
- Familiarity with CRM and email marketing integrations.
- UI/UX design knowledge is a plus.

Please provide examples of similar work done.