I was recently looking for the implementation of a particular algorithm I needed for work, and came across the personal webpage of a developer which was discussing a very similar problem in a blog post. This developer currently works for a small/medium sized company that does some great work and for which I think I would be a very good fit. The company does not currently have any open positions listed on their website, but this employee has similar skill and interests, works in the department that, I think, would be the most suitable for me, and judging from their employment history we have some work acquaintances in common.
I would like to send this person an email (their address is publicly available on their website) expressing my interest for the company. I wouldn't be attaching my CV, asking them to pass it on to their HR department, but at the same time I would like to show that I could be a very good fit (it's a small and specialized field) and ask them how they find it there and if they think there could be new openings in the future.
Would this considered to be too blunt/inappropriate?