IT Infrastructure and Network Security Manager

MOBIS

About The Position

The IT Infrastructure and Network Security Manager is responsible for designing, implementing, and maintaining the core technology infrastructure that supports Hyundai MOBIS and MOBIS North America Electrified Powertrain (MNAe). This role oversees the stability, security, and performance of all network and server systems, ensuring reliable connectivity and robust cybersecurity across the organization. The manager leads infrastructure planning, network architecture design, system upgrades, and security initiatives while monitoring and resolving performance issues to minimize downtime. Additional responsibilities include enforcing security policies, conducting risk assessments, managing IT budgets, maintaining accurate infrastructure documentation, and coordinating with vendors and cross-functional teams. This position also supervises internal IT staff and outsourced personnel, ensuring clear roles, performance management, and effective delivery of IT services. The ideal candidate possesses deep technical expertise, strong leadership capabilities, and the ability to support a rapidly growing, technology‑driven manufacturing environment.

Requirements

Bachelor's degree in Computer Science, Information Technology, or a related field.
5+ years (7+ years preferred) of experience as an IT Infrastructure and Network Engineer or similar role in a corporate environment, preferably in the automotive industry or equivalent professional experience.
Strong knowledge of network protocols, technologies, and infrastructure components (routers, switches, firewalls, etc.).
Experience in designing and implementing LAN/WAN architectures, including VPNs and wireless networks.
Proficiency in server infrastructure management, including virtualization technologies (e.g., VMware, Hyper-V).
Familiarity with storage systems, backup solutions, and disaster recovery procedures.
Solid understanding of network security principles and technologies (firewalls, IDS/IPS, VPNs, etc.).
Experience with network monitoring and troubleshooting tools.
Strong analytical and problem-solving skills.

Nice To Haves

Industry certifications such as CCNA, CCNP, MCSA, or CISSP
Bilingual speaker (English and Korean) is a plus.

Responsibilities

Collaborate with stakeholders to understand business requirements and design scalable and reliable infrastructure solutions.
Implement and manage network infrastructure, including LAN/WAN, routers, switches, firewalls, wireless access points, and VPN connections.
Deploy and maintain server infrastructure, including physical and virtual servers, storage systems, and backup solutions.
Configure and optimize operating systems, applications, and software updates.
Plan and execute infrastructure expansion or upgrades to accommodate company growth.
Design and implement network architecture, ensuring optimal connectivity, performance, and security.
Configure and maintain network devices, including routers, switches, firewalls, and wireless infrastructure.
Implement network segmentation, VLANs, and other security measures to protect against unauthorized access and potential threats.
Monitor and troubleshoot network connectivity and performance issues, ensuring minimal downtime and maximum availability.
Collaborate with cross-functional teams to investigate and resolve network-related incidents and outages.
Develop and enforce network security policies and procedures to protect the company's infrastructure and data.
Implement and manage security technologies, including firewalls, intrusion detection/prevention systems, VPNs, and SIEM tools.
Conduct regular security assessments, vulnerability scanning, and penetration testing to identify and address potential risks.
Ensure compliance with industry standards and regulations, such as GDPR or ISO 27001.
Stay updated on emerging network security threats and industry best practices, implementing proactive measures to mitigate risks.
Maintain accurate and up-to-date documentation of infrastructure configurations, network diagrams, and operational procedures.
Prepare reports on network performance, security incidents, infrastructure upgrades, and compliance.
Provide recommendations for infrastructure and network improvements, optimizations, and cost efficiencies.
Make plans for IT Investment and Expense budget. Review and manage their purpose. effectiveness, progress, and schedules.
Manage Vendor registration and payment lists.
Assign and manage roles, responsibilities and KPI for IT staff (IT Admin, infra, Network and Security).
Make Accurate and up-to-date documentation of roles, responsibilities, and work scopes for IT contracts with GP Department. Manage their results of service, performance, issues and outsourcing staff.