Full-Stack Web Developer (SaaS Project – Long Term)

I am looking for a reliable full-stack web developer to help me build a SaaS platform for service-based businesses. The platform will need to include:
• Client and job management
• Scheduling and calendar system
• Invoicing and payment integration
• Admin dashboard with role management
• Mobile app for field staff (basic version to start, web-based or hybrid)

Required knowledge of the following framworks/services:

Amazon Web Services (AWS)
ReactJS
GraphQL
NodeJS
And more

The goal is to start lean with an MVP (minimum viable product) and then expand features as the business grows. This is a long-term opportunity with the possibility of increased pay over time as revenue scales.