1. Freelance translator finds his/her own clients whereas a project manager works with already existing clients connected to a company or an organisation s/he works for.
2. Freelance translator only works with selected specific languages s/he specialises in whilst a project manager works with a variety of languages.
3. Freelance translator negotiates prices with clients whilst a project manager works with the rates offered by the company or organisation s/he works for, or another company representative negotiates rates with clients.