QuickBooks or Xero Service-Based Accounting Setup and Management

I'm seeking an experienced accountant to set up either QuickBooks or Xero for my service-based business.

Key Tasks:
- Setup of accounting software
- Processing 20-100 payments/invoices per month
- Invoicing and expense tracking

Ideal Skills:
- Proficiency in QuickBooks and Xero
- Experience with service-based business accounting
- Strong organization and attention to detail
- Ability to manage a variable volume of transactions

Please share your relevant experience and approach to this task.