If you have a reliable internet connection there should be no problems but you may find the ping count is a bit higher than your used to due to the distance from the server and it may be a bit laggy at times. Telecomms tend to be a bit erratic as does the power supply. My company has a satcom dome for back up when the telephones go down, there used to be a loony who declared war on the telecom company and used to blow up exchanges, not sure if he is still around, been a while since I was last assigned there.
As Impakt said, follow your companies security advice and you should be okay, its not the kind of country where you can wander about on your own at night, or even during the day in some parts. I have never payed a bribe to get into Nigeria but I have paid to get out a couple of times

, It is so not on my list of favourite countries I have been to.
Good luck in your new job