n8n Developer Needed – Complete TaxSlayer to GoHighLevel API Handshake (Middleware Already Built)

We have an existing n8n automation setup that connects TaxSlayer (tax software) to GoHighLevel (CRM). The middleware has already been built, including a 30-minute token-refresh layer to prevent the TaxSlayer access token from expiring. We need a skilled n8n developer to complete the final API handshake and confirm that data flows correctly between systems. This is NOT a build-from-scratch project. The foundation is already in place. We need someone to pick up where we left off and get this across the finish line. **Scope of Work:** - Review the existing n8n workflow and middleware - Complete the TaxSlayer to GoHighLevel API handshake - Test the 30-minute token auto-refresh to confirm it is functioning correctly - Verify data is flowing from TaxSlayer into GoHighLevel as expected - Provide a brief summary of what was completed and confirmed **Requirements:** - Proven experience with n8n - Experience with REST API integrations and OAuth/token authentication - Familiarity with GoHighLevel (GHL) is a plus - Must be able to start immediately - Clear communication throughout the process **What We Are NOT Looking For:** - Developers who want to rebuild what already exists - Anyone requiring full platform access beyond what is needed for this task - Vague timelines — this should be complete in one focused session If you have experience completing API handshakes in n8n and can hit the ground running, we want to hear from you. Please include your relevant experience with n8n and API token authentication in your proposal. Looking forward to working with a sharp, efficient developer!