Senior IT Engineer at COFREIGHT INC – BUENA PARK, California

Location: Buena Park, CA

Work Schedule: Standard business hours; weekend on-call rotation required

Role Summary

This is a standalone Senior IT Engineer role focused on supporting and improving our on-premises infrastructure environment in the United States.

The role requires a broad, hands-on skill set across networking (including wireless), systems, security, storage, and virtual desktop infrastructure (VDI / cloud desktop).

Key Responsibilities

• Operate, maintain, and troubleshoot Windows and Linux server environments
• Manage and support enterprise network infrastructure, including:
  • Routing and switching
  • VLANs, firewall rules, and VPN connectivity
  • Wireless LAN (Wi-Fi) design, deployment, and troubleshooting
• Deploy, manage, and troubleshoot enterprise Wi-Fi networks, including:
  • Access point provisioning and controller configuration
  • SSID design, security (WPA2/WPA3, 802.1X), roaming optimization
  • RF tuning, channel planning, and interference troubleshooting
• Operate and maintain virtualization platforms, including:
  • VMware vSphere
  • Hyper-V
  • Proxmox VE
• Design, deploy, and support Virtual Desktop / Cloud Desktop (VDI) environments, including:
  • Desktop pools and image management
  • User profile and session management
  • Performance tuning and troubleshooting
• Administer and troubleshoot enterprise storage systems, including:
  • SAN / NAS / DAS
  • RAID, LUNs, volumes, snapshots
  • iSCSI, NFS, SMB
• Perform storage performance analysis and capacity planning
• Implement and maintain system and infrastructure security controls:
  • OS hardening
  • Patch and vulnerability management
  • Access control and audit practices
• Participate in monitoring, backup, and disaster recovery (DR) planning and operations
• Create and maintain technical documentation and operational runbooks
• Participate in weekend on-call rotation to respond to infrastructure incidents

• 5+ years of experience in infrastructure / systems engineering
• Strong hands-on experience with:
  • Windows Server and Linux
  • Enterprise networking, including wired and wireless networks
• Practical experience with enterprise Wi-Fi solutions, such as:
  • Ubiquiti UniFi
  • Aruba Networks
• Solid experience with virtualization platforms (VMware, Hyper-V, Proxmox VE)
• Experience with Virtual Desktop / Cloud Desktop (VDI) solutions, such as:
  • VMware Horizon
  • Citrix Virtual Apps & Desktops
  • Microsoft RDS / similar VDI platforms
• Good knowledge of enterprise storage technologies:
  • SAN / NAS / DAS
  • RAID concepts, snapshots, replication
  • Storage performance troubleshooting (IO latency, throughput)
• Good understanding of system and infrastructure security best practices
• Strong troubleshooting and root-cause analysis skills

Nice to Have

• VDI performance optimization and large-scale desktop deployment experience
• Wireless site survey or RF optimization experience
• Experience with backup and DR solutions (e.g., Veeam)
• Familiarity with monitoring and logging platforms
• Experience in multi-site or campus environments
• Scripting or automation experience (PowerShell, Bash)
• Relevant infrastructure, network, or security certifications

BENEFITS

• Medical insurance
• Dental insurance
• Vision insurance
• Paid Time Off

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