Network & Security Architect

Ohalo; South San Francisco (CA); Hybrid; USD 125,000 - 140,000; Full time

Job summary

Ohalo in South San Francisco is seeking a Network & Security Administrator to own day‑to‑day network infrastructure and help drive device security across offices, labs, and field sites. You’ll document architectures and collaborate with the IT Manager on evolving our network as new sites are added.

This role centers on designing and maintaining UniFi networks, managing WAN and VPN, administering Hexnode UEM and Google Workspace, and building SOPs.

Qualifications

• Minimum 5+ years in network administration or IT infrastructure.
• Hands-on with Ubiquiti UniFi (Network, Access, Protect).
• Solid knowledge of WAN, TCP/IP, DHCP, DNS, VLANs, VPN.
• Experience with MDM/UEM platforms and Google Workspace.
• Ability to create and maintain IT policies and SOPs.
• Interest in AI tools to automate IT workflows.

Responsibilities

• Design, deploy, and maintain UniFi network infrastructure across sites.
• Manage WAN, wireless and wired networking, DNS/DHCP, VLANs, routing, VPN.
• Administer Hexnode UEM for devices: enrollment, policy enforcement, patching, remote wipe.
• Oversee Google Workspace users, groups, and security settings.
• Maintain network and device documentation: policies and SOPs.
• Automate recurring IT workflows and evaluate AI-assisted tools.
• Troubleshoot connectivity and hardware across office, lab, field.
• Support security program with phishing simulations and awareness.

Skills

Ubiquiti UniFi ecosystem

WAN technologies

Networking protocols TCP/IP DHCP DNS/V

MDM/UEM administration

Google Workspace administration

IT policy and SOP documentation

Workflow automation / AI tools

Notion Jira Slack usage

Security fundamentals and access

Troubleshooting in lean IT

Tools

UniFi Network

UniFi Access

UniFi Protect

Hexnode UEM

Google Workspace

Notion

Jira

Slack

KnowBe4

Zapier

Job description

Ohalo in South San Francisco is seeking a Network & Security Administrator to own day‑to‑day network infrastructure and help drive device security across offices, labs, and field sites. You’ll document architectures and collaborate with the IT Manager on evolving our network as new sites are added.

This role centers on designing and maintaining UniFi networks, managing WAN and VPN, administering Hexnode UEM and Google Workspace, and building SOPs.