Zapier Automation for Outlook-to-Dropbox Transfer

I am in need of a specialist to build a Zapier automation that triggers when an email arrives in my Microsoft Exchange Outlook mailbox. This process should be initiated if the email has 'Invoice' in the subject line or body. Upon this trigger, a PDF attachment should be copied to a specific Dropbox folder. Here is what ideal candidates should have:

• Extensive experience with Zapier automation
• Knowledge of Microsoft Exchange Outlook and Dropbox integrations
• Comfortable with conditional triggers (emails containing 'Invoice)
• Experience dealing with PDF file transfers

Please ensure you are capable of providing this solution before placing a bid.