Systems Administrator

Cytek Biosciences

Systems & Network Administrator managing servers, networks, and infrastructure for Cytek Biosciences. Focused on building proactive management practices and ensuring system efficiency.

Posted 7/9/2026full-timeFremont • California • 🇺🇸 United StatesSeniorLead💰 $105,000 - $125,000 per yearWebsite

Tech Stack

Tools & technologies

AWSAzureCloudDNSDockerLinuxPythonSwitchingTCP/IPVMware

About the role

Key responsibilities & impact

Administer and maintain Windows and Linux server environments, including virtual machines (VMware/Hyper-V) and cloud resources (Azure, AWS)
Manage server provisioning, capacity planning, storage allocation, and decommissioning
Own backup and disaster recovery processes, including regular validation and testing
Monitor system health, performance, and availability; resolve issues before they become outages
Manage and troubleshoot LAN/WAN, Wi-Fi, VPN (Cisco AnyConnect), DNS, DHCP, and switching infrastructure
Support multi-site connectivity between Fremont, Seattle, and international offices
Handle network access requests, VPN setup, and connectivity issues as an escalation point from the helpdesk
Maintain and document network topology, configurations, and access controls
Implement firewall and network changes as directed by the Information Security Specialist
Administer Active Directory, Group Policy, and user account lifecycle (provisioning, changes, deprovisioning)
Manage DUO MFA enrollment and troubleshooting in coordination with the Information Security Specialist on policy configuration
Apply OS and firmware patches to servers, network devices, and infrastructure components on schedules defined in coordination with the Information Security Specialist
Partner with the business systems team on integration points (NetSuite, Salesforce, Propel) where infrastructure supports application performance
Support the Information Security Specialist during incident response by providing infrastructure access, logs, and system-level remediation as needed

Requirements

What you’ll need

10 years of experience in systems administration, network administration, or a combined infrastructure role
Strong hands-on experience with Windows Server, Active Directory, and Group Policy
Experience managing virtualization platforms (VMware, Hyper-V) and cloud environments (Azure and/or AWS)
Solid networking fundamentals — TCP/IP, DNS, DHCP, VPN, switching, and Wi-Fi
Familiarity with backup and disaster recovery tools and practices
Ability to manage infrastructure across multiple physical sites
Strong troubleshooting skills and a bias toward documenting solutions
Comfortable working in a small IT team where you'll need to be both strategic and hands-on
Nice to Have
Experience in a life sciences, biotech, or regulated environment
Scripting skills (PowerShell, Bash, Python) for automation
Experience with Docker or containerized environments
Any relevant certifications (CCNA, CompTIA Network+, Microsoft, AWS/Azure).

Benefits

Comp & perks

Cytek is an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, age, religion, sex, gender identity, sexual orientation, national origin, genetic information, disability status, veteran status, or any other characteristic protected by law.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Systems AdministrationNetwork AdministrationBackup and Disaster RecoveryScripting (PowerShell, Bash, Python)LAN/WAN Management

Soft Skills

Strong Troubleshooting SkillsDocumentation SkillsStrategic Thinking

Certifications

CCNACompTIA Network+Microsoft CertificationAWS CertificationAzure Certification