Data Warehousing with AWS PostgreSQL DB

UPDATE: The data I have is backup data from an online system called Ragic (think excel worksheets online with limited interaction). This system is no longer working for us and we need a more robust solution.

We need an interface for a few employees to input data, some simply, and some where we are generating bills of laden. That is where the data will come from after bringing over the historical data and building the reports out for the old stuff to test everything out.

Maybe what I have below is too much, need someone to tell me what you think I am looking for and help set that up.
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I am looking for an experienced AWS and PostgreSQL professional who can set up a PostgreSQL database on AWS for data warehousing purposes. The project involves:

- Building the AWS PostgreSQL database, management tools, and running database.
- Integrating the database with CSV/Excel files as data sources.
- Assisting with recommendations for suitable AWS services for data integration and ETL tasks.

Ideal skills and experience for the job include:

- Proficiency in AWS and PostgreSQL.
- Prior experience with data warehousing.
- Strong skills in data integration and ETL.
- Expertise in working with CSV/Excel files.

Please, share your previous relevant experience when bidding. Thank you!