London (UK) and Boston (US) - youDevise, Ltd.
We're a 60-person financial-software firm committed to learning and improvement as well as great web software and agile development. We're hiring developers and other smart folks of many kinds. See http://www.youdevise.com/careers and https://dev.youdevise.com.
No remote working, but we do help successful candidates relocate to London or Boston. (Our first HN hire has been here for over a month and is having a great time.)