IT Systems Administrator — Mission-Critical Defense IT

Mission Technologies, a division of HII; Mountain View (CA); On-site; USD 96,000 - 125,000; Full time

Job summary

Mission Technologies' DIU IT team in Mountain View, CA seeks an experienced IT Systems Administrator to support government-grade infrastructure across Windows, macOS, Google Workspace, and cloud platforms.

You will deliver Tier 1-2 end-user support, manage endpoints, networks, and cloud services, ensure security compliance, and contribute to IT policy and planning in a fast-paced, mission-critical environment.

Qualifications

• 5 years relevant experience with a Bachelor's in related field; security clearance ability.

Responsibilities

• Provide expert Tier 1 & 2 end-user support via multiple channels.
• Manage enterprise network, cloud infra, and endpoint management.
• Configure SaaS platforms, IAM, and secure data handling.
• Support IT policy, procurement, and project planning.
• Maintain IT documentation and runbooks.

Education

Bachelor's degree in related field

Tools

ServiceNow

NinjaOne

Kandji

Microsoft Intune

Google Workspace

AWS

GCP

SIEM

ACAS

XDR

Linux

Bash

Powershell

Python

Job description

Mission Technologies' DIU IT team in Mountain View, CA seeks an experienced IT Systems Administrator to support government-grade infrastructure across Windows, macOS, Google Workspace, and cloud platforms.

You will deliver Tier 1-2 end-user support, manage endpoints, networks, and cloud services, ensure security compliance, and contribute to IT policy and planning in a fast-paced, mission-critical environment.