Freelance Marketplace for Wireless Network Engineer jobs are also readily available online. These jobs are usually project based that can either be long term or short term. If you are looking to make more money, you may choose a long-term job as a short-term task entails less money. A network engineer works as the core as they are building a proper system for an organization on which its entire working will be based on. You will be asked to make proxies, create device configurations, and various other IT-related stuff. If you are good at your job, then becoming a network engineer freelance will be easy for you and you will find the pay to be ideal as well.