IT Systems Administrator

United States·Torrancemid

Customer SupportIt Support Specialist

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Quick Summary

Key Responsibilities

Infrastructure and Cybersecurity Responsibilities (70-80%) Monitor, administer, maintain, and troubleshoot on-prem environment, including Active Directory, GPOs, File and Print services (PaperCut),

Requirements Summary

5+ years of progressive experience administering enterprise Windows Server and Microsoft Azure environments Skilled in Active Directory, GPO, Windows Servers, PowerShell Scripting, DNS,

Technical Tools

Customer SupportIt Support Specialist

Intellisense Systems, Inc. is a privately held, Southern California-based technology innovator with a proven track record of developing and deploying innovative products that successfully operate in the most extreme environments. We solve tough, mission-critical challenges for our customers in the aerospace, defense, and commercial markets, delivering the full data continuum from sensing and embedded processing to video integration, displays, and data/video recording and storage for airborne and ground vehicle platforms. Our portfolio also includes environmental and maritime sensing and smart power management systems, engineered to the highest levels of safety certification and built with embedded cybersecurity and advanced encryption capabilities.

We are seeking a self-motivated, experienced IT Systems Engineer to support and secure our hybrid Microsoft environment, including Azure Government and Microsoft 365 GCC High. This person will split their time between infrastructure and cybersecurity work and Tier II/III support and will be flexible enough to shift focus as business needs change.

Location: Torrance, CA (Onsite)

Responsibilities:

Infrastructure and Cybersecurity Responsibilities (70-80%)

Monitor, administer, maintain, and troubleshoot on-prem environment, including Active Directory, GPOs, File and Print services (PaperCut), Active Directory Certificate Services (AD CS), NPS/RADIUS, Windows Server 2016–2025, Hyper-V cluster, and Veeam backups
Monitor, administer, maintain, and troubleshoot cloud environment, including Azure Government IaaS, Entra ID, SharePoint, and other Microsoft 365 GCC High applications
Administer and optimize workloads hosted in Azure Government, including Azure Virtual Desktop, virtual networking, and site-to-site VPN connectivity
Assist efforts to migrate local file storage to SharePoint
Responsible for local and cloud Server and Application performance
Manage endpoints through Intune, including Settings Catalog configuration, compliance policies, and remediation scripts for hybrid-joined devices
Use NinjaOne RMM for patch management, scripting, and remote support
Administer endpoint security, including CrowdStrike Falcon EDR and BitLocker encryption
Support engineering and lab applications, including MATLAB, Zemax OpticStudio, OceanView, SolidWorks, and IBM DOORS, along with their license servers
Analyze, diagnose, isolate, and identify system problems. Create short-term solutions to alleviate problem symptoms. Identify root causes and create and/or execute long term remediation plans
Conduct implementations that include configuring, installing, and updating servers and applications based on standards
Participate in systems planning and help develop Systems roadmap
Contribute to systems maintenance efforts and perform system hardening
Plan and perform Windows Server lifecycle work, including in-place upgrades and post-upgrade validation
Responsible for monitoring and maintaining NetApp storage, Dell servers (including iDRAC out-of-band management), UPS/power systems, and other appliances at the data center
Work closely with MSSP to continually monitor and analyze system activity to identify malicious activity
Triage and respond to security alerts from CrowdStrike Falcon, the MSSP, and Microsoft 365/Entra ID. Take containment actions such as isolating hosts, disabling accounts, and revoking sessions, following the incident response plan
Document and escalate incidents (including event’s history, status, and potential impact for further action) that may cause ongoing and immediate environmental impact
Implement and maintain DISA STIG baselines and validate them with SCAP scans. Maintain the System Security Plan (SSP) and Plan of Action and Milestones (POA&M) for vulnerabilities identified during risk assessments, audits, and inspections
Collect and maintain evidence for CMMC Level 2 assessments, including in Vanta
Document security implementations and support ongoing compliance with IT security policies and configuration guidelines

Helpdesk Support Tier II & III (20-30%)

Serve as Tier II/III support for helpdesk tickets, stepping into Tier I when needed.
Work closely with Tier I to resolve issues and train in new technologies
Follow and maintain technical documentation, procedures, and policies, and suggest improvements.
Mentor junior members of the team
Perform other tasks as assigned by management

Requirements:

5+ years of progressive experience administering enterprise Windows Server and Microsoft Azure environments
Skilled in Active Directory, GPO, Windows Servers, PowerShell Scripting, DNS, and Veeam
Experience with Entra ID, Conditional Access, Intune, SharePoint, Exchange Online, Microsoft 365, general storage, Veeam and Server technologies
Microsoft certifications such as AZ-104, AZ-500, SC-300, or MD-102, or CompTIA Security+, a plus
Cybersecurity such as SIEM, Intune, Entra Conditional Access, and MFA experience a plus
Experience with Linux (Ubuntu), an ITSM ticketing platform, and documenting procedures in a shared knowledge base such as Notion a plus
Experience administering and governing enterprise AI tools a plus
Team player, proactive, reliable, and self-motivated individual who is always striving to optimize and automate
Available for planned support and/or emergencies 24x7
Working knowledge of NIST SP 800-171, CMMC Level 2, and CUI handling requirements under DFARS 252.204-7012 (NIST SP 800-53 familiarity a plus)
Experience with Azure Government or Microsoft GCC High environments preferred
This position requires U.S. citizenship and the ability to obtain and maintain a U.S. Government security clearance

Compensation: $99,000 - $129,000 (Base salary for this position will vary based on your skills, qualifications, and experience)

REQ. #26053

What We Offer

~2 min read

✓4 Weeks PTO a year (including 40 hours of PTO your first day)

✓10 paid holidays

✓401(k) with 100% employer matching up to 5% of salary (no vesting period)

✓Multiple options for Medical, Vision, Dental Insurance plans

✓Health Savings Accounts

✓Flexible Spending Accounts

✓Tuition Assistance (30% of Tuition with a minimum qualifying grade)

✓100% Paid Employee Assistance Program (EAP)

✓100% Paid Basic Life and AD&D Insurance

✓100% Paid Workers Compensation Insurance

✓Voluntary Life Insurance

Location & Eligibility

Where is the job

Torrance, United States

On-site at the office

Who can apply

About this job

Pay per year: $99,000–$129,000 a year; 44% above the $79,040 median for It Support Specialist jobs on Jobera (590 salaries).
Who can apply: United States
Posted: 1 day ago
Employer: has 10 open jobs on Jobera.