The availability of external services for communication and data exchange via the Internet has led to a great boom in demand for personal services from all over the world.
Many companies need translation services. And a freelancer may not organize himself to work with one or two companies. Please specify your native (preferred) working language
Of course, you can add other languages, but you should only translate into your native language or the language you studied and prepared for at school and university.
Yes, you can be bilingual or have a high degree of proficiency in another language, but you will have to prove it. Project managers are always very busy and need native translators.
Use this https://protemos.com/tms-for-freelance-translators.html platform for translation management business for freelancers. They have a free version for freelance translators. This will help you provide quality service to various agencies and control the timing of orders.