System administrators get the head aches of the hi tech world. They are responsible for installing, monitoring, upgrading, and maintaining the hardware, systems, and the software. Things must run smooth, or someone will be yelling at the admin. Some larger groups have many admins, each with a specialization, but often they do everything.

System admins work on things like operating systems, server hardware, software programs, the devices on the network,the web servers, the email systems attached the them, the secuirty of each. Not a sexy job, but its very needed. A good admin is invisible, becuase if they do the job well you never need to call on them. Kind of like the cops that deter crime, they never need to make an arrest and so are never hailed as heroes.

Why does a enterprise need a sysadmin? They are the wood and nails of a the business’s IT building, so to speak. They do the boring, robotlike jobs daily to prevent the problems, and improve technical perfomance. If something does somehow break, they do the diagnostics. They must stay on top of the the changes to the quick technology changes to the systems of the enterprise, and because of that they often contain knowledge that most wont, and it will often prove to be a critical fact. Sysadmins will be needed throughout the foreseeable future. More and more systems go online daily and  they are variably complex, coupled with new technology.

Generally you want one with 3-5  years experience. For some positions companies might seek a 4 year degree, dependant on complexity. Many employers seek only a specific general certificate. Such as Cisco Certified Network Professional or Cisco Certified Network Associate.