n8n Workflow & Backend Integration Engineer (Project-Based)

We are looking for an experienced n8n Workflow & Backend Integration Engineer for a project-based role.

Our backend estimating engine is already built. We now need someone to connect the website to the backend and automate the full workflow from file upload to quote output.

This is a gig-based project focused on building a reliable automation pipeline.

Scope of Work:

• Connect website uploads to backend processing
• Build and optimize n8n workflows to orchestrate API calls
• Trigger backend processing from uploaded PDFs
• Manage job status updates (processing / completed / failed)
• Handle retries and error logging
• Store and return structured quote outputs (JSON / CSV / PDF)
• Connect PostgreSQL where required
• Ensure secure handling of file uploads and API authentication
• Implement notifications (email/webhook) when jobs complete

System Flow:

Website Upload ? Storage ? n8n Trigger ? Backend Processing ? Quote Output ? Website Status Update

You must be able to:

• Work with REST APIs
• Build structured, maintainable n8n workflows
• Handle long-running background jobs
• Design proper error handling and retry logic
• Prevent duplicate processing
• Write clean documentation

Tech Stack:

• n8n
• AWS (S3 preferred)
• REST APIs
• PostgreSQL
• JSON-based backend responses

This is a project-based role.

If the project is delivered well, there is potential for ongoing work and possibly a longer-term role as we expand the system.

When applying, please include:
1. Examples of n8n workflows you’ve built
2. Experience integrating APIs with backend systems
3. How you handle retries and job status tracking
4. Your estimated timeline
5. Your project-based rate

We are looking for someone practical, reliable, and experienced with backend automation.