A VoIP engineer oversees the installation and maintenance of VoIP, or voice over internet protocol, telephony systems. VoIP is a system through which parties can communicate over the internet, as opposed to through a traditional telephone system. Engineers are usually employed by a single company to manage their in-house network. As a VoIP engineer, your responsibilities include determining the company’s needs, developing a network with the proper hardware to fit those needs, and monitoring the system to ensure voice communication is functioning correctly. You may need an associate’s degree in this career, but many employers will accept a high school diploma and an appropriate certification from a company like Cisco. You need extensive computer and analytical skills to succeed as a VoIP engineer.