I need help finishing an ETL system

Hi! I'm looking for some help for a smaller project. I have starting to built a application that lets users send data to bigquery from their different marketing platforms via api's. And need someone to finish it, Interested? Ping and I will let you know some more details.

Something similar as -
https://www.catchr.io/destinations/big-query
https://supermetrics.com/products/bigquery