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Sr. IT Linux System Engineer - Secret - Onsite in Orlando, FL

Job in Orlando, Orange County, Florida, 32885, USA
Listing for: Lockheed Martin Corporation
Full Time position
Listed on 2026-07-01
Job specializations:
  • IT/Tech
    Systems Administrator, Cybersecurity, Systems Engineer, Unix/Linux
Job Description & How to Apply Below
Position: Sr. IT Linux System Engineer - Secret Required- Onsite in Orlando, FL
Job Description

Are you ready to invent the future? Lockheed Martin is on a journey of digital transformation as we leverage our data, modernize our processes and advance technology to maintain our position as the world's Aerospace and Defense leader.
We are leveraging emerging, digitally-enabled capabilities to lower cost, speed up development time and create disruptive solutions to best serve our customers and stakeholders. We're bringing the 4th Industrial Revolution to every role in the company.
We are assembling a team of change agents to tackle the hardest technical challenges that come with digital transformation. We are looking for highly motivated, proactive and enthusiastic individuals to join and contribute significantly to the successful implementation and enablement of this journey for our Lockheed Martin Missiles and Fire Control Team (MFC).
This role is for a Systems Engineer role at MFC working in classified areas supporting DoD critical programs on engineering networks and special test equipment in labs.
Workstation/Server administration on heterogeneous networks including Red Hat-based Linux distributions, Windows 10/11, Windows Server based domains.
Manage operating system cyber compliance, upgrades, and patching (Windows/Linux)
Perform guidance and management for hardware, including diagnostics, troubleshooting, and maintenance on multiple architectures
Ensure the integrity and availability of applications as well as coordinate new application installations, upgrades, and customer support in classified areas.
Responsible for implementing effective backup/recovery, resource accounting, and auditing procedures.
Perform troubleshooting and maintenance on varied IT hardware (PCs, printers, laptops, etc.).
Implements security designs in hardware, software, data, and procedures.
Full-time onsite role, working the majority of the day in closed areas.

Basic Qualifications

Must have an Active Secret clearance
Must possess or be able to obtain within 6 months of start date a valid IAT Level II or III DoD Approved 8140 (DoDD 8570) certification such as Security+, in good standing
5yrs+ Knowledge and experience with workstation/server administration of Linux, Windows, and Active Directory domains.
Demonstrated experience effectively performing in a fast paced, dynamic environment
Experience developing effective stakeholder and partner relationships
Proven business acumen to manage multiple assignments and projects with the ability to balance technical requirements with business needs and affordability
Demonstrated collaboration, including interpersonal and teaming skills

Desired skills

Prefer Security+, CISSP, or other IAT Level II/III security certification
Experience building, operating, and maintaining secure operating system configurations as well as secure networks with demonstrated technical knowledge
Experience working in Active Directory domains
Scripting ability to support system administration activities and automation (i.e. Ansible, Python, BASH, Perl, Batch, VBScript, Power Shell, etc.)
Linux + certification
AWS and/or Cloud Certification
Virtualization Technologies Hyper-V, vmWare, etc.
Strong troubleshooting and problem solving skills
Experience managing McAfee anti-virus updates on Windows and Linux/Unix; prefer ePO experience
Technical documentation creation and management; including designing, building, and documenting new environments/systems
Experience developing and maintaining Windows or Linux baselines, including security settings and hardening
Intuitive thinker that can contrive and implement new solutions to technical problems
Knowledge and experience implementing technical requirements on multiple operating systems for NISPOM Chapter-8, JAFAN, JSIG, DoD RMF, and other protection level caveats
Understanding of basic routing/switching networking concepts
Prefer experience working in Linux Environments (Red Hat, CentOS, Rocky, etc)
Familiarity with engineering software and license mechanisms, particularly FlexLM

EEO

Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.
The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.

*

At Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work.

With our employees as our priority, we provide diverse career opportunities designed to propel, develop, and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. We place an emphasis on empowering our employees by fostering an inclusive environment built upon integrity and corporate responsibility.

If this sounds like a culture you connect…
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