System Administrator

Quindar

. Build, secure, accredit, and operate the IT backbone of classified operational spaces .

Posted 10/6/2026full-timeDenver • Colorado • United StatesMid-LevelSenior💰 $110,000 - $140,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in managing and securing IT systems within classified environments, ensuring compliance with security best practices while maintaining high reliability and performance. Proficient in endpoint management, identity and access management, and supporting distributed teams in fast-paced settings.

Highest-signal resume keywords

Endpoint Management Across macOS, Windows, And LinuxIdentity And Access Management Including SSO, MFA, And RBACExperience With MDM Platforms Such As Jamf, Intune, Or KandjiUnderstanding Of Security Best Practices For Corporate IT EnvironmentsAbility To Obtain U.S. Government SECRET Clearance

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Endpoint ManagementIdentity And Access ManagementNetwork AdministrationScripting Or AutomationSecurity Best PracticesClassified IT Systems SupportConfiguration And PatchingTroubleshooting IT IssuesCloud-Based IT ToolingCompliance-Driven Environments

Soft Skills

Strong CommunicationCollaboration Across TeamsAdaptability In Fast-Moving EnvironmentsProblem-SolvingTrust Building

Tools & Technologies

MDM PlatformsGoogle WorkspaceOktaSlackAtlassianVPNsWi-Fi InfrastructureOffice InfrastructureSCIF InfrastructureDISN Networks

Certifications & Qualifications

U.S. Government SECRET ClearanceITAR Eligibility

Industry Keywords

SOC 2ISO 27001FedRAMPClassified Operational SpacesCorporate IT EnvironmentsHybrid TeamsFast-Moving Startup EnvironmentSecurity ComplianceAccredited SpacesEnd-User Systems Support

Tech Stack

Tools & technologies

CloudJamfLinuxMacOS

About the role

Key responsibilities & impact

Build, secure, accredit, and operate the IT backbone of classified operational spaces
Deploy and maintain IT systems inside Secret Collateral and SCI-accredited spaces, including SCIF infrastructure
Install and maintain CWAN, DISN, SIPR, and/or JWICS networks
Deploy classified-compliant workstations and peripherals
Support all end-user systems in coordination with the ISSM and Facility Security Officer
Ensure employees have fast, reliable, and secure access to required tools
Make corporate IT systems scalable, well-documented, and easy to operate
Configure, patch, and secure endpoints consistently
Minimize downtime and respond quickly to IT issues
Balance strong security with developer velocity
Establish trust across engineering, operations, and leadership

Requirements

What you’ll need

5+ years supporting corporate or enterprise IT environments
Strong experience with endpoint management across macOS, Windows, and Linux
Hands-on experience with identity and access management, including SSO, MFA, and RBAC
Experience administering internal networks, VPNs, Wi-Fi, and office infrastructure
Strong understanding of security best practices for corporate IT environments
Ability to operate in a fast-moving startup environment with minimal process overhead
Comfortable owning systems end-to-end with high reliability expectations
Experience with MDM platforms such as Jamf, Intune, or Kandji (preferred)
Familiarity with cloud-based IT tooling such as Google Workspace, Okta, Slack, and Atlassian (preferred)
Experience supporting distributed or hybrid teams (preferred)
Exposure to compliance-driven environments including SOC 2, ISO 27001, or FedRAMP-adjacent workflows (preferred)
Scripting or automation experience (preferred)
Ability to obtain or currently hold a U.S. Government SECRET clearance (preferred)
Experience supporting or setting up IT systems in classified or controlled-access environments (preferred)
Must satisfy ITAR eligibility requirements as a U.S. citizen or national, lawful permanent resident, refugee, asylee, or eligible to obtain required authorizations
Availability to work onsite a minimum of three days per week

Benefits

Comp & perks

Offers equity
Offers bonus
Unlimited PTO, with a requirement to take 15 days off annually
Most U.S. federal government holidays
Quarterly health & wellness benefits
Comprehensive health insurance for employees and family, with 100% employee coverage
4% 401(k) matching
Annual 4-day company offsite
Hybrid work arrangement