About the role

  • Systems & Network Administrator at Cytek Biosciences managing servers, networks, and security infrastructure. Hands-on role focusing on proactive infrastructure management and team collaboration.

Responsibilities

  • Manage our VM environment, maintain our VPN and network infrastructure across multiple sites, and handle server provisioning and storage.
  • Work closely with our Information Security Specialist on security-related infrastructure changes.
  • Partner with helpdesk and business systems teams to reduce operational burden and improve service delivery.
  • 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.
  • Support onboarding and offboarding processes from an infrastructure and access perspective.
  • Apply OS and firmware patches to servers, network devices, and infrastructure components on schedules defined in coordination with the Information Security Specialist.
  • Maintain patching documentation and change logs.
  • Coordinate maintenance windows with stakeholders to minimize business disruption.
  • Serve as Tier 2/3 escalation for infrastructure-related helpdesk tickets.
  • Reduce reactive ticket volume by implementing monitoring, automation, and self-service solutions.
  • Document infrastructure environments, runbooks, and standard operating procedures.
  • Partner with 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

  • 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
  • Nice to Have: Scripting skills (PowerShell, Bash, Python) for automation
  • Nice to Have: Experience with Docker or containerized environments
  • Nice to Have: Any relevant certifications (CCNA, CompTIA Network+, Microsoft, AWS/Azure)

Job title

Systems Administrator

Job type

Experience level

SeniorLead

Salary

$105,000 - $125,000 per year

Degree requirement

Bachelor's Degree

Location requirements

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