Multi-Domain System Administrator jobs in United States
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Astrion · 1 day ago

Multi-Domain System Administrator

Astrion is seeking a versatile and mission-focused Multi-Domain Systems Administrator to support the Air Force Research Laboratory’s Research & Development Integrated Space Experiments contract at Kirtland AFB, NM. In this role, you will deliver end-to-end system, cloud, cyber, and network administration across secure DoD environments, supporting day-to-day mission operations and system troubleshooting for multiple AFRL program environments.

ManufacturingSpace Travel
badNo H1BnoteSecurity Clearance RequirednoteU.S. Citizen Onlynote

Responsibilities

Administer accounts, onboarding/offboarding, MFA, PKI/CAC, and certificate updates across multiple secure environments
Provision, configure, and maintain AWS Workspaces, AWS Directory Service, and cloud-integrated identity services
Perform Windows and RHEL Linux system administration, including patching, service configuration, troubleshooting, and baseline security hardening
Manage Active Directory (Cloud DC) objects and enforce least-privilege IAM policies
Troubleshoot system, network, and cloud-access issues for on-prem and AWS environments
Support network tasks including ACL updates, firewall coordination, static IP assignments, and general connectivity troubleshooting
Maintain IT infrastructure equipment such as UPS systems, network devices, and firewall configuration backups
Follow configuration management and change-control processes for system updates and infrastructure modifications
Maintain documentation (access lists, configurations, system inventories) and collaborate with engineering, cyber, and PM teams to ensure operational readiness

Qualification

DoD 8570/8140 IAT Level IIIIIRed Hat Enterprise LinuxAWS WorkSpaces administrationNetworking fundamentalsCyber hygiene requirementsBasic scripting skillsAtlassian toolsLog monitoring platformsCommunication skills

Required

Top Secret clearance with SCI eligibility (required at start)
Bachelor's degree in IT, Computer Science, Cybersecurity, Systems Administration, or a related technical field
DoD 8570/8140 IAT Level II or III certification (e.g., Security+, CySA+, CCNA Security, CASP+, or CISSP)
5+ years of experience as a Systems Administrator, Cloud Administrator, Network Administrator, or similar role supporting DoD or mission-critical systems
Hands-on administration experience with Red Hat Enterprise Linux (RHEL) including user management, patching, service configuration, and security hardening
Experience with AWS WorkSpaces administration, Active Directory/Cloud DC, IAM, and identity lifecycle management
Working knowledge of networking fundamentals, access control lists (ACLs), DNS, DHCP, routing, and troubleshooting connectivity issues
Experience with cyber hygiene requirements such as MFA enforcement, PKI/certificate compliance, password policies, and cybersecurity training validation
Strong communication skills with the ability to coordinate across multidisciplinary engineering, cyber, and program management groups

Preferred

Experience supporting AFRL, USSF, or other DoD programs
Experience with AWS Directory Services or hybrid cloud/On-Prem + AWS environments
Familiarity with eMASS for updating certificates, commenting on findings, or assisting with user-level RMF tasks
Experience managing Atlassian tools such as Confluence, Jira, and Bitbucket
Working knowledge of STIG/SRG-based hardening for Windows and RHEL systems
Basic scripting or automation skills (PowerShell, Bash, Python)
Familiarity with log monitoring platforms (e.g., Splunk, ELK, Graylog)

Company

Astrion

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Astrion is a provider of mission support and advanced engineering services.

Funding

Current Stage
Late Stage

Leadership Team

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David Zolet
Chief Executive Officer
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Dalia Khanafseh
Senior Vice President, Transformation
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Company data provided by crunchbase