Polymer Trading Mobile App Development

I'm looking for a skilled mobile app developer to create a trading app for my polymer trading business on both iOS and Android platforms.

Core functionalities include:
- Order booking through our sales team
- Order execution

User roles must include:
- Salesperson
- Manager
- Administrator

Ideal skills and experience:
- Proven experience in mobile app development for both iOS and Android
- Strong background in order processing systems
- Experience in developing apps with multi-user roles
- Familiarity with trading platforms would be a plus
- Strong UI/UX design skills to ensure an intuitive user experience

Looking for someone who can deliver a high-quality product within budget.