Senior Administrator-Systems (On-Site)

Neumo; Fairfield (CA); On-site; USD 150,000 - 210,000; Full time

Job summary

Neumo is seeking a senior-level systems administrator to lead day-to-day operation, security, and optimization of our county-wide compute, storage, and cloud infrastructure. The ideal candidate will possess expert Azure skills, deep Windows Server experience, and hands-on management of AD, DNS, PKI, M365, Entra ID, and Configuration Manager.

In a multi-site environment spanning six cities and multiple data centers, you will partner with teammates to ensure robust IT operations while complying

Qualifications

• Extensive hands-on systems administration experience.
• Expert level Azure experience and cloud administration.
• Strong knowledge of Windows Server, Active Directory, DNS, PKI, M365.
• Experience with Entra ID and Configuration Manager.

Responsibilities

• Oversee day‑to‑day operation, support, and security of compute, storage, and cloud infrastructure.
• Collaborate with team members to manage multi-site compute, storage, and cloud infrastructure.
• Comply with background check and CLETS requirements.

Skills

Azure expert

Windows Server

Active Directory

DNS

PKI

Configuration Manager

M365

Entra ID

Azure cloud administration

Server OS

HyperConverged virtualization

Cisco UCS

HyperFlex

Tools

Cisco UCS

HyperFlex

Job description

Job Summary:

This is a senior-level technical role requiring extensive hands‑on experience in systems administration and deep expertise in network operating systems. The ideal candidate will have 'expert' level experience with Microsoft Azure, and strong working knowledge of Server OS, Active Directory, DNS, PKI, Microsoft Endpoint Configuration Manager, server monitoring, M365, Entra ID, and Azure cloud administration. As a technology leadership position, it demands a high level of practical proficiency in both Windows Server environments and Azure cloud services. Solano County's network spans six cities, four data centers, multiple branch locations, and two Azure tenants. In collaboration with other team members, this position will be responsible for the day‑to‑day operation, support, and security of the County's compute, storage, and cloud infrastructure. Our on‑premises environment is primarily built on Cisco UCS and HyperFlex (HX) platforms, so recent experience with converged or hyperconverged virtualization systems is essential. Please note that this position requires passing a California Law Enforcement Telecommunications (CLETS) background check, and authorization to work in the United States (please see following for specifics): https://www.fbi.gov/services/cjis