Sir,
I've been working as asysadmin at an ISP for a few months but need more money so I'm back on the market.
I've been usin Linux for 7 years and been int server administration.
As you can see on my profile, and previous work, I master nginx, mysql, apache2, wordpress, load balancing, and a lot of other things.
Debian/Ubuntu is my OS of choice, I am using it everyday. I master all other OS due to my work - we sell dedicated and we need to know how to repair them all - whatever OS it is.
I also administer a lot of remote networks which have constraints like yours and don't want to expose machines with sensitive information. pptp tunels, openvpn, or even juniper hardware VPN - we use a lot of things.
I am your guy. You will work with a profesionnal that knows deadlines, have skill, and communication.
My english is also perfect, so is my French. I also speak a bit of German.
Please PM me. During the day I work. I'll try to be available on the phone app, or during this weekend.
Regards,