E-Commerce & App for Barnet POS

I need a full e-commerce website and companion mobile app that sell my services online while staying in sync with my existing Barnet POS system. The platform must let customers browse service packages, add them to a cart, and check out seamlessly; every sale should automatically register in Barnet POS for payment confirmation, customer records, and reporting.

Key functions include secure user accounts, real-time POS synchronisation (prices, taxes, discounts, and order status), responsive design for the web front, and native or high-quality cross-platform builds for both iOS and Android. I’m open to your suggested tech stack as long as it delivers fast load times, smooth UX, and straightforward maintenance.

Deliverables
• Responsive service-focused web storefront
• iOS and Android apps published to their stores
• Stable API or middleware that links the store/app with Barnet POS in real time
• Source code, build instructions, and brief hand-over documentation

The project needs to be wrapped up within a month, so please factor that timeline into your approach. When you apply, highlight relevant experience—especially any previous work connecting e-commerce platforms to POS systems or building service-based online stores.