Facebook Leads Integration in Spring Boot CRM

I need a developer to integrate Facebook leads retrieval into my existing Spring Boot CRM project. The leads data should be pulled in real-time and integrated into existing contact records.

Requirements:
- Retrieve the following information:
- Name and contact details
- Custom form responses
- Real-time data retrieval
- Update existing contact records in the CRM

Ideal Skills:
- Proficient in Spring Boot
- Experience with Facebook API
- Strong Java programming background
- Familiarity with CRM systems and database integration

Looking for efficient and clean code that ensures data accuracy and integrity.