I go by BallisticSigma or Jason Sigma.
I have ran modded/unmodded servers.
I have a plentiful amount of staff experience.
I configure and help with server development and such.
NOTE: I do not MAKE plugins, I modify, configure, etc.
I can teach someone how to setup server(s).
I have experience with Spigot, Bukkit, Sponge etc.
I research what I do not understand so I can get it done and working.

If you would like my help comment below, I will reply and most likely ask for a way to communicate via voice.