Senior Infrastructure Network Engineer - On-Site San Jose

SK AX USA, Inc.; San Jose (CA); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Employer-paid Medical/Dental/Vision

401(k) Match

PTO & Holidays

Paid Lunch

Relocation Assistance

Bonus Opportunity

Job summary

SK AX USA, Inc. in San Jose, CA is seeking an experienced Infrastructure Network Engineer to design, implement, and manage our network infrastructure on-site.

You will support network availability, security, and scalability through hands-on configuration, monitoring, and troubleshooting across multiple vendor platforms. The role requires strong technical judgment and day-to-day ownership of operations, with clear communication.

Qualifications

• Five+ years of experience in network infrastructure design and troubleshooting.
• Bachelor’s degree or equivalent experience in IT.
• Proficiency in TCP/IP, routing, DNS, DHCP and VPN configurations.
• CCNA or higher certification.
• Ability to document technical information clearly in English.

Responsibilities

• Design and deploy LAN/WAN solutions meeting availability, performance, scalability, and security.
• Configure routers, switches, firewalls, L4/L7 load balancers, IP PBX systems, and related network equipment.
• Monitor availability and performance; investigate alerts and incidents.
• Coordinate with vendors and on-site teams; document changes and maintain diagrams.
• Implement automation to improve routine administration and operational efficiency.

Skills

Network design

Troubleshooting

English communication

Korean language proficiency

Education

Bachelor’s degree in Network Engineering, IT, CS

Tools

Network monitoring tools

VMware/Hyper‑V

VPN configurations

Cisco device configuration

Job description

SK AX USA, Inc. in San Jose, CA is seeking an experienced Infrastructure Network Engineer to design, implement, and manage our network infrastructure on-site.

You will support network availability, security, and scalability through hands-on configuration, monitoring, and troubleshooting across multiple vendor platforms. The role requires strong technical judgment and day-to-day ownership of operations, with clear communication.