GoHighLevel Developer – Custom LINE API Integration & QR Attribution Specialist

GHL LINE Integration & Attribution Developer Job Title: GoHighLevel Developer – Custom LINE API Integration & QR Attribution Specialist Project Overview We are seeking a senior GoHighLevel developer/middleware engineer to build a custom two-way integration between the LINE Messaging API and GoHighLevel (GHL). Additionally, the developer will build an automated attribution parsing system that extracts UTM parameters and campaign identifiers from inbound LINE and WhatsApp messages to track print QR codes and digital ad sources. Key Deliverables & Responsibilities Custom LINE Channel Integration: Build a custom middleware endpoint (Node.js, Python, or Make/n8n serverless) connecting the LINE Official Account Messaging API with GHL’s API v2 (Conversations API). Enable full two-way messaging so incoming LINE messages appear directly inside the GHL Conversations Inbox and agent replies inside GHL route back to LINE. Ensure incoming LINE messages trigger GHL Conversation AI bots and Workflows natively. Store and map LINE User ID dynamically to GHL Contact records to prevent duplicate contacts. Attribution & Deep-Link Parameter Parsing: Build an inbound webhook/regex parser in GHL to extract source reference tags (e.g., [REF:Flyer_A], [REF:FB_Ad_02]) embedded in initial LINE and WhatsApp pre-filled messages. Automatically parse and map extracted values into GHL Custom Fields (Lead Source, Campaign Name, QR Placement ID). Verify that source attribution persists across the contact record, Opportunity pipeline, and GHL reporting. Technical Requirements Proven experience with GoHighLevel API v2 (specifically Conversations API, Contacts API, and Webhook triggers). Direct experience developing with the LINE Messaging API (Webhooks, Push/Reply API). Strong knowledge of middleware services (Node.js, AWS Lambda, Make, or n8n). Familiarity with GHL Conversation AI execution flow and custom channel behavior. Experience building UTM and deep-link parsing logic for chat applications (LINE & WhatsApp). How to Apply Please submit your application with: Brief evidence of a prior GHL Custom Channel or LINE API integration you have developed. A high-level description of your proposed architecture (e.g., AWS Lambda, Make, Node.js server) for linking LINE webhooks to GHL.