Hello,
I'd like to offer you my services as EN>ES translator. I thik I suit what you are looking for, since Spanish (Spain) is my native language and I have been traslating in this pair since 2013, with more than 700k words in different topics (social sciences, marketing, IT cloud, web contents, SEO, blogging, etc.).
Linguistic proficiency, attention to detail and familiarity with formal/informal tones are not a problem.
However, I'd like to know more about your project, especially:
-the topic or field of your texts,
-the project total volume,
-expected workload per week,
-other details (CAT tools, glossaries, etc.).
Since I don't know the project's volume, I can provide just a guess about the price. My usual basic rate is 0,08€/word, but it may vary up and down according to topic and expertise required, total volume, tight/loose deadlines, etc.
I am available for a short free translation test and for any further question or comment that may arise. About samples, you have a coule in my portfolio and I'd can provide moreon demand (more accurate if you tll me what the topic is).
I look forward to hearing from you.
Best regards,
Víctor Zamorano