Freelance PWA Developer – POS Integration (Cannabis eCommerce, METRC-ready)

Freelance PWA Developer – POS Integration (Cannabis eCommerce, METRC-ready) Project Overview I’m building a cannabis retail website and need a developer to create a Progressive Web App (PWA) that integrates with my POS system (Marijuana Software LLC). The goal is a mobile-first, app-like experience where customers can browse products, place orders, and install the site on their phone — without building a native app. ________________________________________ Scope of Work • Build a Progressive Web App (PWA) (mobile-first) • Create a clean, modern storefront UI • Integrate live product menu + inventory from POS • Enable online ordering • Implement installable app experience (home screen) • Set up service worker (caching + performance) • Optimize for speed and responsiveness • Ensure reliable data flow between frontend and POS • Loyalty System ________________________________________ Tech Requirements • JavaScript (ES6+), HTML, CSS • Experience with React, Vue, or similar frameworks • Experience building Progressive Web Apps (PWA) • Experience with REST APIs / JSON integrations • Understanding of service workers + caching ________________________________________ Integration Requirements • Connect frontend to POS via: o API (preferred) OR o embedded/hosted menu • Ensure: o product data sync o pricing sync o inventory sync • POS remains source of truth (no duplicate entry) ________________________________________ Important Notes • This is a lean MVP build • No native app required • METRC compliance handled through POS • Focus on performance and usability, not heavy design ________________________________________ Budget Flexible, but looking for a cost-effective build (not agency pricing) ________________________________________ Deliverables • Fully functional PWA (mobile + desktop) • Installable app experience • Live menu integrated with POS • Loyalty System • Working online ordering flow • Basic documentation ________________________________________ How to Apply Please include: 1. PWA projects you’ve built 2. API or integration work 3. POS or ecommerce experience 4. Your recommended approach (API vs embedded)