Salesforce Consultant

Hi - We are looking for a Salesforce Consultant who can help advise and develope our system. We recently moved onto Salesforce in June and a contractor completed an initial build for us. We unfortunately were not 100% happy with the build so have decided to look for further assistance elsewhwhere. The system seems to have some small bugs within it and hasn't been working as it should so this role will require some looking at the system and problem solving where the areas that are not functioning correctly. We also moved from a Hubspot platform previously, and haven't been able to move some data like emails and, notes and call logs onto Salesforce due to migration issues. So any previous experience with migrations and/or Hubspot would be greatly valued.