Clone and run this on a new EC2 instance running Ubuntu 14.04 LTS to configure both the machine and your individual development environment as follows:
curl -L https://raw.github.com/kerlin/setup/my_setup/run_setup.sh | sh; . ~/.bash_profile
OR
cd $HOME
sudo apt-get update
sudo apt-get install -y git-core
git clone https://github.com/kerlin/setup.git
./setup/setup.sh
See also http://github.com/kerlin/dotfiles and Startup Engineering Video Lectures 4a/4b for more details.