Expert n8n Developer - AI Video Pipeline with WhatsApp Approval Gates & Multi-Platform Posting

Looking for a sharp, efficient solo n8n developer to build an end-to-end automated video pipeline for two DTC e-commerce brands. Agencies and generalists will be ignored. If you haven't connected AI video or media generation tools to an automated publishing workflow before, please do not apply. This is a high-efficiency build for an established 10-year-old brand with existing video assets, a digital avatar clone, and an active content pipeline, alongside a second brand launching soon. The Stack: n8n, Claude/OpenAI API, ElevenLabs, HeyGen, Blotato, WhatsApp Business API, Google Drive. ### What We're Building: A fully automated daily video content pipeline that generates platform-optimized scripts via AI, gets owner approval via WhatsApp, assembles video from a growing asset library using the owner's digital clone for scripted segments, fills gaps with AI-generated video, delivers the finished video for final approval, then broadcasts simultaneously to all social platforms. Every approved video automatically saves back to the asset library so the content pool grows daily. Two human approval gates ensure nothing posts without explicit sign-off. --- ### Strict Scope of Work & Milestones: #### Milestone 1 — Daily Script Generation (Fixed Price: $100) * Claude/OpenAI API automatically generates a daily video script each morning based on a rotating schedule. * Script is optimized for platforms (TikTok hooks, YouTube Shorts, Reels) and pulls from approved brand guidelines and blog content. * Script is delivered to the owner via a WhatsApp Business API interactive message. * Owner replies: [Approve], [Reject], or sends text notes for a revision loop. If rejected, AI automatically revises and resubmits. #### Milestone 2 — Video Assembly & Clone Generation (Fixed Price: $100) * Approved script sends a payload to the HeyGen API to render an AI Avatar video clip using our specific Voice ID (ElevenLabs) and Avatar ID. * n8n scans our Google Drive asset library using script context to pull matching B-roll and product footage. * Any gaps in footage are dynamically filled by AI-generated video or additional clone segments to assemble a complete video. * Completed draft video URL is sent to the owner's phone via WhatsApp with two interactive buttons: [Approve & Post] and [Reject & Revise]. * If rejected, owner sends text notes via WhatsApp. Workflow automatically routes the text data back to the assembly stage for automated AI revision based on those notes. #### Milestone 3 — Multi-Channel Publishing & Asset Update (Fixed Price: $100) * Clicking [Approve & Post] triggers the Blotato API to instantly publish the video to all connected social media channels simultaneously. * The successfully published video file is automatically saved into a "Completed Assets" folder in Google Drive so it is instantly available for future automated video assembly. * Clean error handling ensures failed posts surface immediately instead of failing silently. --- ### Deliverables: 1. Fully functional, cleanly labeled n8n workflow JSON files importable to our cloud account. 2. Brief documentation explaining each workflow node so we can maintain it. 3. Handoff call walking us through the complete system. ### Requirements: * Prove it. Show me a Loom, screenshot, or workflow export of something you've actually built using HeyGen API, Blotato API, or WhatsApp webhooks. No proof, no response. * Solo developer only. No project managers, agencies, or middlemen. ### Budget: $300 fixed. Milestone-based payments released upon successful live testing of each stage. To prove you read this posting in full, begin your application with the phrase: HYBRID STACK DONE RIGHT