Google Sheets Automation Expert Needed

I need an expert in Google Sheets to help automate data entry tasks and merge data from multiple sheets.

Key requirements:
- Create and implement advanced Google Sheets formulas
- Automate data entry tasks to improve efficiency
- Merge data from multiple sheets seamlessly

Ideal skills and experience:
- Proficiency in Google Sheets, especially with complex formulas
- Experience in task automation within spreadsheets
- Strong problem-solving skills and attention to detail

Please provide examples of previous work.