I am a native English speaker (US) with some level of German, Dutch, Spanish. I work as a product owner with a similar need to custom copy and value prop by marketing language. Also manage design resources to deliver marketing collateral and web content for Russia, France, US, Germany and Spanish speaking countries.
Not sure how to bid but I'm available! Let me know the scope or if you want to just start I can accommodate with an hourly rate. Do you have an existing website?