Automation Expert for Gmail + Stripe + Google Sheets Integration

We are looking for an Automation Expert to create a smart invoicing system using Gmail, Stripe, Google Sheets, and Slack. The goal is to automate our project invoicing workflow by monitoring Gmail for new confirmation emails, checking for duplicate invoices, and extracting project details from the email body or PDF attachments.

The automation should ensure accurate invoicing and update Google Sheets with client details and invoice status. Slack notifications should be set for new invoices and payment confirmations.

Requirements: Strong experience in automation workflows, Stripe API, Gmail API, and error-free data syncing.