Developer need for a (n8n + Supabase + Frontend + AI workflows)

Experienced developer needed to finish existing web app (n8n / Supabase / Frontend / AI)

I need a strong developer to help finish a partially built web app.

This is not a scratch build. The core product, user flow, database direction and automation logic already exist. I need someone who can step into the current setup, quickly understand it, identify what is missing, and complete the build properly.

The platform accepts user-submitted data via web/email, processes it through n8n workflows and AI integrations, stores structured outputs in Supabase, and displays personalised results in a frontend dashboard.

A major part of this role is the n8n side, so I am specifically looking for someone with genuine hands-on experience in n8n, Supabase, frontend integration, debugging, and production-ready implementation.

Main work:

• Complete frontend integration
• Finish and clean up n8n workflows
• Ensure stable Supabase integration
• Connect frontend, automation and database cleanly
• Improve AI / structured JSON reliability
• Fix broken logic, incomplete flows and loose ends
• Help get the app into a usable, launch-ready state

You should be comfortable with:

• Auth-connected frontend logic
• Supabase data integration
• Dashboard/history views
• Email, text or document-based workflow processing
• AI API integration
• JSON/schema-based outputs
• Retries, fallbacks and failure handling
• Saving clean records and updating statuses correctly
• Debugging partially built systems

Please apply only if you have real experience with:

• n8n
• Supabase
• Frontend web app development
• API integrations
• AI integrations
• Taking existing products over the line

Please do not apply if:

• You only do UI/design
• You only do prompt experimentation
• You want to rebuild everything from scratch without a strong reason
• You are guessing your way through n8n or Supabase
• You send generic copy-paste proposals

To apply, please send:

• A short summary of your relevant experience
• Examples of work using n8n + Supabase
• Examples of existing builds you finished or rescued
• Confirmation that you are comfortable across frontend + n8n + Supabase
• Your availability over the next 2-4 weeks
• A brief note on how you would approach auditing and completing this project

Important: I am only looking for someone with genuine hands-on experience who can help finish a real working system, not experiment on a live project.

Budget: GBP 373 (Fixed Price)

Proposals: 19 freelancers have applied