Visual Basic Data Manipulation Functions

I'm looking for an experienced Visual Basic developer to create custom functions for data manipulation. The primary data source will be databases.

Key Requirements:
- Develop Visual Basic macros to create custom functions.
- Primarily focused on data manipulation tasks.
- Interaction with various databases.

Ideal Skills and Experience:
- Proficiency in Visual Basic.
- Strong experience with database interactions.
- Expertise in developing custom functions for data manipulation.

Please provide examples of similar work done and your approach to this task.