Lockheed Martin · 2 months ago
Senior Systems Engineer - IT
Littleton, CO
Part-time
Hybrid
Senior LevelLockheed Martin is a global security and aerospace company seeking a highly motivated Senior Systems Engineer-IT to join their Radiant Mercury team. This role focuses on maintaining the security posture, compliance, and lifecycle management of COTS hardware and software systems, ensuring the confidentiality and integrity of mission-essential systems.
AerospaceCyber SecurityMachinery ManufacturingMilitaryNational SecurityRemote SensingSecurity
No H1B
U.S. Citizen Only
Responsibilities
Security Patching & Hardening: Execute quarterly RHEL operating system patching and apply security hardening measures in accordance with RTB requirements
Vulnerability & Compliance Management: Monitor, assess, and remediate vulnerabilities across supported platforms to maintain compliance with DoD and program security standards
System & Firmware Updates: Manage firmware and software updates across COTS servers and network devices, coordinating with vendors to ensure secure implementation
Incident Response & Troubleshooting: Provide technical support for security-related incidents, system outages, and customer inquiries
Automation & Scripting: Develop and maintain scripts (Bash, Python) to automate security checks, patching, and system monitoring
Testing & Validation: Support security and functional testing activities, including procedure development, execution, and documentation
Customer Engagement: Collaborate with customers to understand mission requirements and recommend secure system configurations within the Radiant Mercury framework
Documentation: Maintain detailed records of system configurations, security controls, and remediation activities
Qualification
Required
Strong background in Red Hat Enterprise Linux (RHEL)
Experience in system hardening
Knowledge of network security principles
Ability to ensure compliance with Raise the Bar (RTB) requirements and other cybersecurity standards
Preferred
Experience with cross-domain solutions or other security-focused technologies
Familiarity with virtualization and secure enclave environments
Experience with scripting languages (Bash, Python) for security automation
CompTIA Security+ or other DoD 8570 baseline certifications
Experience providing cybersecurity support in classified environments
Company
Lockheed Martin
Lockheed Martin is a global security and aerospace company that specializes in advanced technology systems, products, and services. It is a sub-organization of Lockheed Martin.
Founded in 1912
10001+ employees
Funding
Current Stage
Public CompanyTotal Funding
$6.06BKey Investors
Air Force Research Laboratory
2025-12-05Post Ipo Debt· $3B
2025-08-28Post Ipo Debt· $3B
2023-11-13Grant· $33.7M
Leadership Team
Jim Taiclet
Chairman, President & CEO
Craig Martell
Chief Technology Officer
Recent News
2026-01-17
Technology - WSJ.com
2026-01-17
2026-01-17
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