Network engineers are professionals who design, implement, and maintain computer networks. They ensure that data can be transmitted efficiently and securely between devices, such as computers and servers. Their work involves configuring network hardware, troubleshooting issues, and optimizing performance to meet the needs of organizations. These engineers often work with various technologies, including routers, switches, and firewalls. They may also collaborate with other IT specialists to support network security and connectivity. A strong understanding of networking protocols and systems is essential for success in this field.