How to Handle Automation of Flat Files in SQL Serv

Question

Problem:
I receive multiple sets of flat files on a weekly basis that need t be imported my Database. The flat files I receive are not in a conventional format to import, so they need to be run through a script and be parsed in to a more SQL friendly format. These flat files are usually in JSON, TXT, XML, LOG, ect.

Current Solutions
Current I have a windows forms application and another GUI to transform the files and to bulkimport to SQL tables. However, I'm finding it unreliable to ask users to import data, and I would much rather automate the tasks.

More recently, I have been creating SSIS packages. This proves to much faster and useful since I can add script components. It allows me to manually parse whatever flat files I throw at it. My issue is finding a way to automate this. I have no control of the server where my database is hosted. So I'm unable to deploy the packages there to bring in the files. Currently, I'm just running the packages on my local machine manually to get the data in.

Needed Solution
I need a way for me to automate getting these flat files in. Originally I wanted to request and FTP server for the files to be dumped in. Then the files would be picked up by my packages and imported into the SQL Server DB. However, since I have no control of any of the local folders on that server, it seems to be impossible for me to automate this. Is there a better way for me to find a solution for this? Could I build something custom in C#, Python, Powershell, etc.? I'm very new to the scene and trying to find a solution for this problem has been a nightmare.