Location: Buena Park, CA
Work Schedule: Standard business hours;
weekend on-call rotation requiredRole SummaryWe are seeking a Senior IT Engineer to support and enhance our on-premises infrastructure in the United States.
The core requirements for this role are: 1) extensive, hands-on experience in enterprise wireless networks (UniFi/Aruba); 2) substantial experience in firewall management and Active Directory; and 3) a strong background in information security and compliance practices.? The engineer will be responsible for the overall stability, efficiency, and security of our IT infrastructure.
Key ResponsibilitiesEnterprise Wireless Networking (Primary Focus)- Design, deploy, troubleshoot, and optimize enterprise Wi-Fi networks.
- Provision and configure wireless access points (APs) and manage wireless controllers.
- Implement SSID design, security (WPA2/WPA3, 802.1X), and roaming optimization.
- Conduct RF tuning, channel planning, and interference troubleshooting.
Network Security & Identity Management (Secondary Focus)- Configure, manage, and troubleshoot enterprise firewalls (security policies, VPN).
- Administer Active Directory (user/group management, GPO, domain security).
Information Security & Compliance- Implement and maintain infrastructure security controls and best practices.
- Conduct system hardening, patch management, and vulnerability management.
- Enforce access controls and audit practices to ensure compliance.
- Participate in security monitoring, incident response, and disaster recovery planning.
General Infrastructure Management- Operate, maintain, and troubleshoot Windows and Linux servers.
- Manage core network infrastructure (routing, switching, VLANs).
- Manage virtualization platforms (VMware vSphere, Hyper-V, Proxmox VE).
- Support Virtual Desktop Infrastructure (VDI) environments.
- Administer enterprise storage systems (SAN/NAS/DAS).
- Maintain technical documentation and participate in on-call rotation.
Requirements
Required Qualifications- 5+ years of experience in infrastructure/systems engineering.
- Core Requirements:
- Extensive, hands-on experience with enterprise wireless networking. Must have expertise with Ubiquiti UniFi or Aruba Networks.
- Secondary Requirements:
- Substantial experience in configuring and managing enterprise firewalls.
- Substantial experience in administering Microsoft Active Directory.
- Hands-on experience with information security and compliance practices.
- Required Skills & Experience:
- Strong hands-on experience with Windows Server and Linux.
- Solid experience with enterprise networking (wired).
- Experience with virtualization platforms (VMware, Hyper-V, Proxmox VE).
- Familiarity with information security best practices.
- Strong troubleshooting and root-cause analysis skills.
Preferred Qualifications (Nice-to-Have)- VDI performance optimization or large-scale desktop deployment experience.
- Wireless site survey or RF optimization experience.
- Experience with backup and DR solutions (e.g., Veeam).
- Scripting or automation experience (PowerShell, Bash).
- Relevant infrastructure, network, or security certifications (e.g., CCNA, Security+, CISSP).
BENEFITS- Medical insurance
- Dental insurance
- Vision insurance
- Paid Time Off
#ZR
Salary Description
$110k- $120k/yr
