Millennium Space Systems · 1 day ago
Senior Linux Systems Administrator
Hazelwood, MO
Full-time
Onsite
Mid, Senior Level
$116K/yr - $156K/yr
5+ years expMillennium Space Systems is a part of The Boeing Company, seeking a Senior Linux Systems Administrator to join their team in Hazelwood, MO. This role focuses on delivering technical leadership and project support for enterprise-level hosting environments, while managing and supporting operations for proprietary customer programs.
AerospaceSpace Travel
No H1B
Security Clearance RequiredU.S. Citizen Only
Responsibilities
Build and maintain information systems in compliance with JSIG/RMF security requirements, including hardware and software installation, network configuration, and troubleshooting
Administer RedHat 7 and higher environments, perform preventative maintenance, and conduct monthly server patching
Utilize vulnerability scanners like ACAS/Nessus and manage distributed file systems
Maintain and organize the server room and data center, ensuring proper installation, tidy cabling, spare parts management, and inventory updates
Document the existing environment, including server inventory, operating systems, connectivity diagrams, and create standard operating procedures for system administration tasks
Mentor junior team members and provide leadership, while diagnosing and resolving performance issues related to CPU, memory, and disk
Open support tickets with vendors for system component failures, coordinate downtime with application owners, and perform necessary replacements
Provide day-to-day support for ticket requests, including DNS entries, filesystem storage increases, user account requests, and performance tuning
Support the backup environment through software upgrades, daily log reviews, and failure resolution to ensure smooth operations
Qualification
Required
RMF compliant with a Security+ certificate or obtain certification within first 6 months
Build and maintain information systems in compliance with JSIG/RMF security requirements, including hardware and software installation, network configuration, and troubleshooting
Administer RedHat 7 and higher environments, perform preventative maintenance, and conduct monthly server patching
Utilize vulnerability scanners like ACAS/Nessus and manage distributed file systems
Maintain and organize the server room and data center, ensuring proper installation, tidy cabling, spare parts management, and inventory updates
Document the existing environment, including server inventory, operating systems, connectivity diagrams, and create standard operating procedures for system administration tasks
Mentor junior team members and provide leadership, while diagnosing and resolving performance issues related to CPU, memory, and disk
Open support tickets with vendors for system component failures, coordinate downtime with application owners, and perform necessary replacements
Provide day-to-day support for ticket requests, including DNS entries, filesystem storage increases, user account requests, and performance tuning
Support the backup environment through software upgrades, daily log reviews, and failure resolution to ensure smooth operations
This position requires an active U.S. Secret Security Clearance (U.S. Citizenship Required). (A U.S. Security Clearance that has been active in the past 24 months is considered active)
Employer will not sponsor applicants for employment visa status
Preferred
Bachelor's degree or equivalent work or military experience
5+ years of experience with RedHat-based systems (RHEL, Oracle Linux, Fedora) and SUSE distro 12 or greater (e.g., DataDomain, vProxy)
5+ years of experience in designing and implementing IT security systems, troubleshooting operating system and installation issues, and administering user system access to meet network security requirements
3+ years of experience with virtualization technologies, including VMware, and managing virtualized environments, as well as installing, configuring, and troubleshooting Linux-based systems and desktop operating systems
Experience with iLOs and applying RMF guidelines for compliance, along with using metrics to measure project performance for quality delivery
Experience with Linux file structures
Experience with developing PowerShell and Linux scripts for hardware integration, automating OS deployment and configuration, and creating and maintaining multiple virtual servers
Benefits
Health insurance
Flexible spending accounts
Health savings accounts
Retirement savings plans
Life and disability insurance programs
Paid and unpaid time away from work
Company
Millennium Space Systems
Millennium Space Systems, a provider of agile, flight-proven small-satellite solutions.
501-1000 employees
Funding
Current Stage
Late StageTotal Funding
unknown2018-08-16Acquired
Leadership Team
Robert Jacobsen
Chief Financial Officer
Shasta Noble
Chief Financial Officer
Recent News
Spaceflight Now
2025-09-30
MEXICONOW
2025-09-27
2025-09-17
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