: BuyAvanta Web App Launch Readiness Audit, Performance Optimization & Critical Fixes

We’re seeking an experienced full-stack developer to review an existing Lovable-built e-commerce web app before launch. The initial review should cover performance, sign-in, cart and checkout reliability, integrations, and access controls. Deliver a prioritized list of launch blockers with recommended fixes. Any implementation will be scoped and approved separately. We value clear communication, practical recommendations and evidence-backed testing on desktop and mobile. Experience debugging React/TypeScript applications and preparing AI-built apps for production is preferred. Please provide your availability, relevant examples and a fixed-price proposal for the initial review. Project details and access will be shared privately under a confidentiality agreement.