Looking for an English/Austrian German translator and proofreader

If you feel like your language level lets you translate texts the way that would fascinate a native speaker — then you're the right person for us. What we do here is we create mobile content: websites with a premium number attached to them. Clients call the number and listen to an audio record on one of a bunch of different themes: horoscopes, finances, health advice, even adult content. So, there are two types of translations and proofreaders we need: website translations (quite short with very easy language). We're content dependant, meaning that we need translations when we have texts, so that's not a regular hourly job. When we have the websites ready, we usually ask the translator to proofread it, since it's their texts :) We're also mostly interested in people who're able to work on a short notice or at least check their Upwork accounts regularly. Meaning that if you only go here once in a couple of days, collect the texts and go offline again - we're probably not a good match :) Please, tell me about what would your rates be for this type of job and I'll get back to you if we're interested in cooperation.
Have a good day