Looking for experienced programmers for a software

The software is to write to car dealers and tire dealers. That means he logs into my e-mail address, searches for companies and writes them that we are looking for tires. The software should also be in the directory 1) Save the company address. 2) also save the e-mail so that it is not sent twice. But only the data that are allowed so you do not get any problems with the DSGVO. Maybe he should also copy our articles from Ebay and set in Ebay kleinanzeigen. For that, I enter my Ebay name there And log in with the software on my kleinanzeigen account. The software then copies the article's images Price adds and writes a standard text underneath.