As you have stated below, this is a 10,000-word project (approx 1,000 words for each of your stated areas) and if I understand correctly you already have the draft content, translated into English from Russian... And you need a professional writer to review that translation and rewrite it for a predominantly English audience? Please confirm this is correct so I can place a suitable bid, and also if possible give an indication of your budget.
Can you give some more details, please? Do you need a copy writer to start this project from scratch or do you have some draft copy for each page that can be used as a basis? Have you researched the details that need including in the content? 1000 words per web page seems a lot - are you sure you need so much information on each page? Do you have a budget in mind?
Do you mean that you provide these services and want us to write about them or that you want someone to research those services for you to advertise on your site through links or that you wnat reviews of such services?
Keep in mind that you have more chances to win a Job with Case Study as fewer Sellers will send a proposal. Moreover the Buyer has already paid a fee for it, which shows that they seriously intend to award the Job.