CRM Development for Sales Tracking

I'm looking for a CRM system focused on sales tracking. The primary functionality I need is sales tracking, with essential features being leads management. I prefer to capture leads through manual entry.

Key Requirements:
- Sales tracking functionality
- Essential leads management feature
- Manual entry for capturing leads

Ideal Skills and Experience:
- Experience in CRM development
- Strong understanding of sales tracking and leads management
- Ability to design user-friendly manual entry interfaces

Looking forward to your proposals!