Senior Systems Engineer - IT

Lockheed Martin Corporation•Littleton, CO

44d•Hybrid

About The Position

Lockheed Martin is a global security and aerospace company that employs approximately 120,000 people worldwide and is principally engaged in the research, design, development, manufacture, integration, and sustainment of advanced technology systems, products, and services. Lockheed Martin (LM) Rotary and Mission Systems (RMS) is looking for engineering professionals to work on the Trusted Security Solutions (TSS) program to engineer Cross-Domain Solution (CDS) products. This position is for a Systems Engineer/Installer on the Radiant Mercury product within the TSS program. Radiant Mercury is the US Navy's premierâ¯CDS product and LM has been the prime contractor for over 20 years. At LM we engineer innovative solutions to deliver resilient systems, products, and services across evolving cyber threats. Strong, resiliency-focused engineering is essential to protecting customer platform/weapon systems from increasingly sophisticated threats. The Radiant Mercury program delivers secure cross-domain solutions to our customers, enabling the controlled transfer of information between different security domains. This role is critical in safeguarding the confidentiality, integrity, and availability of these mission-essential systems. Lockheed Martin is seeking a highly motivated Senior Systems Engineer-IT to join our Radiant Mercury team. This role focuses on maintaining the security posture, compliance, and lifecycle management of Commercial Off-the-Shelf (COTS) hardware and software systems. The ideal candidate will have a strong background in Red Hat Enterprise Linux (RHEL), system hardening, and network security principles, with the ability to ensure compliance with Raise the Bar (RTB) requirements and other cybersecurity standards. The primary work location is at the Deer Creek Facility (DCF) in Littleton, Colorado with limited ability to work remotely. The candidate will primarily be required to come into the office or travel to customer sites to conduct their work.

Requirements

Bachelor's degree in Cybersecurity, Computer Science, Engineering, or related technical field.
3+ years of experience in cybersecurity, system administration, or related technical role.
Strong knowledge of RHEL system administration, patching, and security hardening.
Solid understanding of networking principles (TCP/IP, routing, switching).
Experience with vulnerability management and compliance frameworks.
Familiarity with COTS server hardware and secure configuration practices.
Strong analytical and problem-solving skills.
Excellent communication and interpersonal skills.
Ability to obtain and maintain a Top Secret (TS) security clearance.

Nice To Haves

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.

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.