RTX · 5 hours ago
Principal Linux Administrator (Top Secret Clearance Required)
RTX Corporation is an Aerospace and Defense company that provides advanced systems and services for commercial, military and government customers worldwide. They are seeking a Principal Linux Administrator to support a highly virtualized Enterprise infrastructure with a focus on Linux-based systems, requiring specialized expertise in Linux system administration and a commitment to collaboration in a high-security environment.
AerospaceManufacturingSecuritySensorTelecommunications
Responsibilities
Install and manage Linux server hardware, operating systems, and software
Perform software upgrades, patching, and system maintenance on Linux systems
Troubleshoot issues and apply security policies specific to Linux environments
Conduct information assurance testing and vulnerability mitigation for Linux systems
Maintain data storage and monitor server operations
Manage backup systems and provide Tier 2 support to the IT Service Desk
Document processes and ensure compliance with organizational policies
Provide remote support for systems across multiple locations
Qualification
Required
Typically requires a University Degree or equivalent experience and a minimum 5 years of experience, or an Advanced Degree and a minimum 3 years experience
Experience supporting Linux operating systems in enterprise environments
Experience managing VMWare virtual environments
Clearance: Active Top Secret
Certification: Existing DoD 8570 security certification (e.g., Security X, Security+, CISSP), or the ability to obtain one within 6 months of starting
Preferred
Familiarity with Agile tools such as Atlassian Jira and Confluence
Knowledge of security policies related to IT systems in secure environments, with a focus on Linux
Proficient in performing system maintenance, installations, upgrades, and backups on Linux systems
Team-oriented with strong collaboration skills across multiple sites
Ability to learn and follow documented policies and standards
Excellent customer service, communication, and process documentation skills
Benefits
Parental (including paternal) leave
Flexible work schedules
Achievement awards
Educational assistance
Child/adult backup care
Medical
Dental
Vision
Life insurance
Short-term disability
Long-term disability
401(k) match
Flexible spending accounts
Employee assistance program
Employee Scholar Program
Paid time off
Holidays
Company
RTX
RTX is comprised of three market-leading businesses – Collins Aerospace, Pratt & Whitney and Raytheon – working as one to answer the biggest questions and solve the hardest problems in aerospace and defense.
Funding
Current Stage
Public CompanyTotal Funding
$3.2MKey Investors
LIFT Ecosystem Accelerator
2024-02-22Grant· $0.2M
2019-06-09Acquired
2010-01-14Grant· $3M
Recent News
2025-12-24
Gulf Times
2025-12-22
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