Network Security Engineer

Responsibilities:

1. System security assessment: Network security engineers need to conduct regular security assessments of the subway company's network system, including network architecture, servers, application systems, etc., using various technical means to discover and address potential security risks; ‌
2. Security device management: Maintain and manage network security devices, such as firewalls, intrusion detection systems, etc., to ensure their normal operation and effective defense against various network attacks; ‌
3. Security incident response: When a security incident occurs, network security engineers will quickly respond, identify the cause, scope, and losses of the incident, and take effective measures to reduce potential security risks; ‌
4. Risk assessment and defense strategy development: Identify the network security risks faced by the subway company, conduct an assessment, and develop corresponding defense strategies based on the assessment results, including setting up firewalls, encryption technology, intrusion detection systems, etc., to prevent network security attacks; ‌
5. Monitoring and emergency response: Real time monitoring of the operation status of the network system, timely detection and resolution of security issues. In the event of a security incident, respond quickly, take emergency measures, and reduce losses; ‌
6. System maintenance and upgrade: Regularly maintain and upgrade the network system to ensure its stability and security. Collaborate with suppliers to obtain the latest security technology information; ‌
7. Training and Education: Provide network security training to subway company employees to enhance their awareness and skills in network security; ‌
8. Log analysis and attack path analysis: Conduct log analysis on security events, identify attack paths, clean up backdoors, and analyze attack paths based on logs; ‌
9. Latest vulnerability information tracking: Track the latest vulnerability information and conduct security checks on business products; ‌
10. Security technology research: Conduct security technology research, including security prevention technology, hacker technology, etc.

Qualifications:

1. More than 5 years of work experience in the computer related industry, with intermediate or above industry certification and above technical titles preferred.
2. Have on-site technical support experience for urban rail transit support projects or other support projects;
3. Have experience in managing and maintaining large and medium-sized networks, and must have experience in testing and operating SDN networks, as well as rich experience in network troubleshooting; Familiar with protocols such as MPLS-VPN/OSPF/STP/VRRP; Understand mainstream networks, servers, and security devices; Have a solid foundation in network and system knowledge;
4. Familiar with network security devices such as firewalls, intrusion detection, network auditing, vulnerability scanning, bastion hosts, etc;
5. Possess the ability to analyze security incidents, respond to emergencies, and operate security products;
6. Ability to troubleshoot system failures, optimize performance, and handle and coordinate emergency situations.
7. Possess good learning ability;
8. Possess good writing and language expression skills, adept at communicating and interacting with others;
9. Good service awareness and stress resistance; Good team spirit and cooperation spirit;
10. Priority will be given to those who are proficient in English, Spanish, or Portuguese, and will be accepted for overseas assignments.