Need Next JS /node postgres full stack engineer

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I need a full stack engineer that has major experience with Node / Next js. No vibe coders or GPT coders. You will be interviewed by high level engineer and provided a couple test tasks. We will know if you're using AI. We need an engineer that can work quickly and efficiently. We will not do hourly pay. It will be pay on completion of addition of certain features after reviewed by our team. No agencies as well, we are looking for individual engineers. Keeping to timelines is a must. If you are incapable of giving realistic completion time for the updates, we will not work with you. This can become a consistent monthly workflow for you, where you provide updates to our platform, if you do well. Our platform needs updates: Chargeback & refund webhooks Notify creators in real time whenever a transaction is charged back or refunded. Enhanced chat & vault UX Show paid (green) vs. unpaid (red) vault items Allow “unsend” of unpaid content to prevent reuse Write internal notes on users (visible only to the creator) Targeted mass messaging Segment by subscription lifecycle: Subscribed within a given date range Subscription cancelled Successful rebill or failed rebill Filter or exclude based on spend thresholds or total lifetime value Failed‑rebill tracking Flag failed rebills so messaging/notifications automatically skip those accounts. Block states management Enable creators to block and unblock users on demand. Affiliate & referral v2 New “Affiliate” menu to generate tracked links Custom discounts tied to each link (Superwall‑style)

Keyword: Content Developer

Price: $1.0

Node.js React JavaScript PostgreSQL Supabase