Welcome,
I'm native Polish speaker, I live in Warsaw and I'd like to help You with your project. Mostly I work here as a translator and copywriter, but I also have a lot of experience in projects similar to yours. For example, I was hired twice as a virtual assistant of employers from Czech Republic and Netherlands. I helped them with translations, selling their products and recruitment, since they needed for example graphic designer or SEO specialist. For all projects I've got the best marks. I have a list with websites where I can post ads describing positions You want to fill. I have unlimited phone calls subscription, so I won't have any problems with making calls. I hope my offer is interesting for You. Please also check my feeback and samples of my previous finished projects on my profile to ensure that I am reliable freelancer. Regards, Michal