Expert in n8n - Gmail Assistant

Job ID: 39594875

Budget: €8 – €30 EUR

Project Description

We’re looking for an n8n expert to help finalize or rebuild a smart Gmail Assistant powered by AI and automation.
The goal is to build a fully autonomous email management system using n8n, OpenAI (GPT-4), Gmail API, MongoDB, and Notion API.
Context

We already have a fully structured JSON workflow (45 nodes) with:

Smart router with 4 flows (new mails, validation, follow-up, sent)

Advanced follow-up module using GPT-4 with snooze, thread recognition, and context-based recontact

Command-based UI (chat interface): /nouveaux mails, /relance, /validation, etc.

Full logging, sticky notes, and error handling already implemented

6 MongoDB collections and 4 API integrations already mapped

What You’ll Do

You can either:

Start from the existing JSON and French setup guide (which I will provide)
or

Rebuild the system from scratch based on the executive PDF specification I’ll share

Your responsibilities will include:

Connecting and configuring all integrations (Gmail, OpenAI, Notion, MongoDB)

Refining or adapting AI prompts for email classification, task extraction, and response generation

Ensuring proper flow logic, error recovery, and validation layers

Implementing secure OAuth2 Gmail access and backup strategies

Delivering a user-friendly interface for validation and daily usage (chat commands)

Thoroughly testing and debugging the complete system

Key Features Expected

AI-powered email prioritization, unsubscribe suggestions, and auto-snooze

Automatic task extraction with syncing to Notion

Smart follow-up logic for unanswered emails

Human-in-the-loop validation with chat control

Monitoring, logs, error handling, and API rate management

Optional: multi-language support, Slack/Teams integration

You Should Have

Proven experience in n8n workflow orchestration

Strong API integration skills (Gmail, Notion, OpenAI, MongoDB)

Understanding of AI prompt engineering with OpenAI/GPT

Good practices in error handling, data privacy, and system reliability

Bonus: ability to read or understand French (setup guide is in French)

Deliverables

A fully functional n8n workflow (hosted or exportable)

Deployment guide (if self-hosted)

Short handoff or training session

Documentation outlining the structure, logic, and endpoints