Hello,
My name is Saya and I am a Japanese native working as a freelance writer / translator / project manager / PR representative in Singapore.
I have worked for a start up company for a full time gig in the past. (The company name is Astroscale) My job was to assist the Japanese CEO with his English and Japanese speech writings, coordinate his schedule and prepare documents for meetings and media interviews, and other admin related tasks (including finding a new office space and make it ready for business.)
I can imagine how things run at a startup and my language ability should be able to assist you and your team.
If you would like to speak further, please do contact me. I am cool with 50 USD a month arrangement, as long as my work hours don't exceed 5 hours a month. (If your "translation" means multiple pages of legal documents, please ignore my bidding.)
Best,
Saya