Network Security Engineers are IT professionals responsible for protecting an organization's computer networks from cyber threats. They design, implement, and maintain security measures, such as firewalls and encryption, to safeguard sensitive data and ensure the integrity of network systems. These engineers also monitor network traffic for suspicious activity and respond to security breaches when they occur. They work closely with other IT staff to develop security policies and educate employees about best practices for maintaining a secure network environment. Their role is crucial in defending against cyber attacks and ensuring business continuity.