Enhance Lovable Project UI and API

I need an experienced developer to make functional a Lovable-developed MVP that retrieves data from sharing economy platforms and analyzes credit worthiness
https://preview--socialtruth-insights-engine.lovable.app/

Key Tasks:
- API Development:
- Implement data retrieval, data submission, and user authentication.

- User Interface Improvement:
- Enhance layout and design.
- Improve navigation and responsiveness.

Ideal Skills and Experience:
- Proficiency in API development.
- Strong background in UI/UX design.
- Experience with the Lovable platform is a plus.
- Ability to work within budget constraints.