Systems Administrator
Job description
About the role
This role manages enterprise IT infrastructure across multiple U.S.
Most organizations organize this kind of work into small teams with a clear owner for each project. People are expected to set priorities, share progress, and ask for help early. Written communication matters because decisions are often recorded and revisited. Successful professionals in any field share a few habits: they take notes, keep commitments, and communicate in writing. Teams value people who make their work easy to review and build on.
Key facts
What you'll do
Enterprise infrastructure issues are handled through escalated support across U.S. branch offices, and remote troubleshooting is coordinated with vendors or engineers as needed. This work sustains daily operations across distributed locations.
VMware Horizon VDI environments are supported, and virtual desktop user onboarding is managed.
Daily backup integrity for Avamar and Data Domain platforms is monitored, and routine restore tests are executed.
System visibility is maintained using Zabbix and Elastic Stack, and technical issues are proactively addressed.
Requirements
A Bachelor's degree in Computer Science, Information Technology, MIS, or a related technical field is required.
Fluency in Korean and English in speaking and writing is required to coordinate with global HQ and local branch offices.
Two to five years of experience in IT infrastructure, systems administration, or technical support operations is required.
Hands-on experience with Windows Server, Active Directory, and Microsoft 365 administration is required.
Practical experience with VMware vSphere or similar virtualized infrastructure is required.
Exposure to enterprise backup solutions such as Avamar or Data Domain is required.
Experience with system monitoring tools such as Zabbix or Elastic Stack is required.
Basic understanding of Linux server administration and networking fundamentals such as DNS, DHCP, and subnets is required.
Familiarity with IT audit preparation and technical documentation is preferred.
Practical notes
Onsite work in San Jose, CA is required, and specific details such as visa sponsorship, if applicable, should be confirmed Typical interview steps
Interviews in this field typically test judgment, communication, and fit as much as technical skill. Be ready to describe a challenge you faced, what you did, and what you learned. Most companies value honest answers over polished ones. Whatever the role, preparation is visible. Reviewing the company's product, the job description, and your own past work before the conversation is the strongest step.
Good to know
Roles in semiconductor innovation often combine specialized domain knowledge with enterprise IT operations.
Virtualization platforms like VMware and remote workspace technologies such as VDI are common in modern infrastructure teams.
Enterprise environments rely on monitoring tools and backup systems to sustain availability and performance.
Clear documentation and audit readiness support compliance and smooth governance.
Cross-functional collaboration with global and local teams helps align technical work with business priorities.
Questions to ask
Useful questions for the interview: what a typical week looks like, how work is assigned, what tools the team uses, and how feedback works. Asking how the role has changed recently and what the team wishes it had known when joining is also reasonable. Questions about the manager's priorities are especially valued.
Career growth
Career growth comes from taking on harder problems and making your work visible. Look for opportunities to own outcomes, mentor others, and learn the business beyond your team. Growth in any career comes from scope, results, and reputation. Take on work that is slightly uncomfortable, and make sure others can see the outcomes.