Complex App and web Development with Zoho Integration

I'm in need of a highly skilled developer who can create a comprehensive Customer Relationship Management (CRM) app and integrate it with all Zoho services, including Zoho Books, Zoho Desk, and Zoho Analytics.

Key Features:
- Lead Management: The app should have a robust lead management system to track and nurture potential customers.
- Email Marketing: It should also include an efficient email marketing feature to reach out to customers and leads.
- Sales Forecasting: A predictive sales forecasting feature will be essential to help anticipate future sales based on current trends.
- complex API Integration using the bank and that credit companies API.
- designing a referral system fore avar app for execution.

Ideal Skills:
- Proficiency in app development, particularly CRM systems.
- Extensive experience with Zoho services and their integration.
- Strong understanding of lead management, email marketing, and sales forecasting features.
- Excellent problem-solving skills to create a complex, yet user-friendly app.

Please, only bid if you have a strong background in the relevant fields and can provide examples of similar projects you've completed.