Job Description

Salary: $100,000 - 130,000 per year Requirements:

• 8+ years of experience in network security, infrastructure security, and/or security engineering.
• Hands-on experience with Web Application Firewalls (WAF), Network Access Control (NAC), IDS/IPS, firewalls, or secure network gateways, including platforms from vendors such as Cisco, Palo Alto, Trend Micro, Gigamon, and Trellix.
• Bachelors degree in Cybersecurity, Information Technology, Computer Science, or a related field.
• Advanced 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 and investigate security events.
• Familiarity with common network and application-layer attack techniques, production environments, and change management processes.
• Strong troubleshooting, documentation, stakeholder management, and communication skills; proficiency in English.
• Preferred: Experience with enterprise WAF policy tuning, bot and API protection, application security rules, NAC deployment models, and tools for SIEM, SOAR, vulnerability management, endpoint security, or cloud security.
• Preferred: Scripting or automation experience using Python, PowerShell, APIs, or infrastructure-as-code tools.
• Preferred: Masters degree in a related field and industry-recognized certifications such as Security+, Network+, CCNA, CCNP Security, PCNSE, CISSP, GSEC, GCIH, or vendor-specific credentials.
• Preferred: Proficiency in both English and Korean.
• Must be able to work onsite in our Irvine office five days per week; occasional after-hours or weekend work may be required.

• Administer, monitor, and optimize WAF platforms protecting internal and internet-facing applications.
• Maintain NAC technologies, including device profiling, policy enforcement, segmentation support, and exception handling.
• Operate and tune IDS/IPS systems to improve detection accuracy and reduce false positives.
• Partner with our IT Networking team on secure network design, routing, switching, firewalls, segmentation, and connectivity.
• Review security events, alerts, logs, and traffic patterns with Security and IT teams to identify threats or misconfigurations.
• Help implement network security architecture standards, hardening guidelines, and secure configuration baselines.
• Participate in incident response for network threats, unauthorized access, and suspicious traffic.
• Create and maintain network security diagrams, platform runbooks, procedures, and change records.
• Support vulnerability remediation involving network infrastructure, application exposure, and security control gaps.
• Review policies and maintain rulebase hygiene across WAF, NAC, IDS, and IPS platforms.
• Take part in change management, including risk assessment, implementation planning, testing, and post-change validation.
• Collaborate with security operations, infrastructure, application, and compliance teams to meet business and regulatory needs.
• Support network security tool lifecycle activities, including upgrades, patching, certificate management, integrations, and capacity planning.
• Recommend improvements to visibility, segmentation, access control, and threat prevention.

• API
• Cloud
• Cisco
• Support
• NAT
• Network
• PowerShell
• Python
• Security
• TCP/IP
• WAF
• Web
• Firewall

More:

We are Hyundai AutoEver America (HAEA), the IT affiliate supporting Hyundai Motor Corporation and North American brands including Kia, Genesis, Hyundai Translead, Hyundai Mobis, Hyundai Capital, and Glovis. We connect Hyundais global headquarters with North American operations and deliver IT services in a global, collaborative environment focused on innovation and the future of mobility. This Network Security Engineer II role is part of our Security Architecture and Engineering team within the CISO organization, which works closely with IT Networking to provide secure, reliable, and scalable services. The team values accountability, customer service, technical excellence, continuous improvement, and global coordination. This is an onsite position in Irvine, California, five days per week. The base salary range is $100,000–$130,000.

last updated 43 week of 2026

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