Associate Network Security Engineer Jobs in California

Job Summary:
Hyundai AutoEver America (HAEA) is a key affiliate of Hyundai Motor Corporation, providing IT services and support to top automotive brands. They are seeking a Network Security Engineer II to design, implement, and improve enterprise network security controls, focusing on technologies like Web Application Firewalls and Intrusion Detection Systems.
Responsibilities:
• Administer, monitor, and optimize Web Application Firewall platforms to protect internet-facing and internal applications.
• Support and maintain Network Access Control technologies, including device profiling, policy enforcement, segmentation support, and exception handling.
• Operate and tune Intrusion Detection and Intrusion Prevention Systems to improve detection accuracy and reduce false positives.
• Partner with the IT Networking team on secure network design, routing, switching, firewall, segmentation, and connectivity initiatives.
• Assist other Security and IT teams by reviewing security events, alerts, logs, and traffic patterns to identify potential threats or misconfigurations.
• Assist with the implementation of network security architecture standards, hardening guidelines, and secure configuration baselines.
• Participate in incident response activities related to network-based threats, unauthorized access, or suspicious traffic.
• Develop and maintain documentation, including network security diagrams, platform runbooks, standard operating procedures, and change records.
• Support vulnerability remediation efforts related to network infrastructure, application exposure, and security control gaps.
• Perform policy reviews and rulebase hygiene for WAF, NAC, IDS, and IPS technologies.
• Participate in change management activities, including risk assessment, implementation planning, testing, and post-change validation.
• Collaborate with security operations, infrastructure, application, and compliance teams to support business and regulatory requirements.
• Assist with lifecycle management for network security tools, including upgrades, patching, certificate management, integrations, and capacity planning.
• Provide technical recommendations to improve visibility, segmentation, access control, and threat prevention across the environment.
Qualifications:
Required:
• 8+ years of network security, infrastructure security, and/or security engineering.
• Practical and demonstrated experience working Web Application Firewalls, Network Access Control platforms, IDS/IPS technologies, Firewalls or secure network gateways in platforms by Cisco, Palo Alto, Trend Micro, Gigamon, Trellix, etc.
• Bachelor’s degree in Cybersecurity, Information Technology, Computer science or a related field.
• Advanced level knowledge of networking concepts, including TCP/IP, DNS, DHCP, VLANs, routing, switching, NAT, VPNs, and network segmentation.
• Experience analyzing logs, packet captures, alerts, and network traffic to troubleshoot issues or investigate security events.
• Familiarity with common network and application-layer attack techniques.
• Experience supporting production environments and following change management processes.
• Strong troubleshooting, documentation, and communication skills.
• Excellent stakeholder management and communication skills.
• Proficient in English for effective communication and coordination.
• This is an onsite position requiring presence in the Irvine office five days per week.
• Some after-hours or weekend work may be required for planned maintenance, incident response, or critical security changes.
Preferred:
• Experience with enterprise WAF policy tuning, bot protection, API protection, or application security rule sets.
• Experience with NAC deployment models, including 802.1X, MAC authentication bypass, posture assessment, guest access, and device profiling.
• Familiarity with SIEM, SOAR, vulnerability management, endpoint security, or cloud security tools.
• Scripting or automation experience using Python, PowerShell, APIs, or infrastructure-as-code tools.
• Masters degree in Cybersecurity, Information Technology, Computer Science or a related discipline is preferred.
• Industry-recognized credentials such as Security+, Network+, CCNA, CCNP Security, PCNSE, CISSP, GSEC, GCIH, or vendor-specific certifications.
• Bi-lingual in English and Korean language proficiency is preferred to support global coordination and communication.
Company:
Hyundai AutoEver is an automobile sales internet company. Founded in 2005, the company is headquartered in Fountain Valley, USA, with a team of 201-500 employees. The company is currently Growth Stage.