I've been working as a "Remote DBA" for the past nine months and we have clients across a very broad spectrum. Retail, Finance, Legal, Automotive, Travel, etc...

Each client has their own requirements in terms of security. One client does not allow us to plug in any equipment or install any software. Another just hands us the proverbial keys to the server and expects us to deal with any issues that arise. We also use about five different VPN solutions, including ones with security tokens. A few of our clients also have us onsite on a regular basis.

From my point of view this job has been the best move of my career. I've come across many varied installations of SQL Server, many of which I wouldn't have had exposure to in a regular DBA role. I get to look after a vast range of servers in many different environments. One client has a 24x7 db that is 100GB, another has 20 dbs with the largest being 2GB. Yet another client has servers in two countries with data replicated between them. We also act as a specialist support for companies that already have DBAs.