As a junior network engineer, your job is to manage connectivity and infrastructure in a company's network. This includes ensuring the company has internet access at all times, testing each new connection when you add hardware, and generally helping to maintain the network. This is a junior position, so you work under the direct supervision of a senior network engineer. Many people use this position to gain additional leadership and engineering skills, with the goal being a promotion to a senior engineering position. Despite not having leadership responsibilities, you may be asked to supervise a project from inception to completion.