Sr. IT System Administrator / Active Clearance / Onsite – Orlando, FL- job post

Job Description

4.04.0 out of 5 stars

Orlando, FL

Full-time

Job details

Job type

• Full-time

Shift and schedule

• 4×10
• Flextime

BenefitsPulled from the full job description

• Flextime
• Parental leave
• 401(k)
• Health insurance
• 401(k) matching
• Paid time off
• Vision insurance

Full job description

JOB ID: 718798BR

Date posted: Mar. 31, 2026

Description:Are you ready to invent the future?company 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 Technical Support and Systems Administration role at MFC supporting DoD critical programs on engineering networks and special test equipment in labs.

• Workstation administration on heterogeneous networks including Windows Server based domains, and Linux distributions
• 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 most of the day in closed areas.

Basic Qualifications:

• Must have an Active Secret clearance
• Ability to maintain a security clearance, and customers’ acceptance
• 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
• Knowledge and experience with workstation administration of Windows, Active Directory domains, and/or Linux environments
• 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
• Ability and willingness to accommodate occasional off-shift hours and travel

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, Batch, PowerShell, etc.)
• Strong troubleshooting and problem solving skills
• Experience managing Trellix products 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, Ubuntu, SuSE, etc)
• Familiarity with engineering software and license mechanisms, particularly FlexLM

Security Clearance Statement:This position requires a government security clearance, you must be a US Citizen for consideration.

Clearance Level:Secret with Investigation or CV date within 5 years

Other Important Information You Should Know

Expression of Interest:By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.

Ability to Work Remotely:Onsite Full-time: The work associated with this position will be performed onsite at a designated Lockheed Martin facility.

Work Schedules:Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.

Schedule for this Position:4×10 hour day, 3 days off per week
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 with, you’re invited to apply for this role. Or, if you are unsure whether your experience aligns with the requirements of this position, we encourage you to search on Lockheed Martin Jobs, and apply for roles that align with your qualifications.

Experience Level:Experienced Professional

Business Unit:ENTERPRISE BUSINESS SERVICES

Relocation Available:Possible

Career Area:Information Technology

Type:Full-Time

Shift:First

At Lockheed Martin, we apply our passion for purposeful innovation to keep people safe and solve the world’s most complex challenges.

Pioneering Defense Technology: From aerospace to outer space to cyber space, you can innovate mission solutions alongside the best minds in the business.

United By Culture: Excellence, integrity, and collaboration define us. We accelerate change and embrace one another’s perspectives to win for our customers.

Real Impact, Real Growth: Grow your career and skills for life. Our wide array of opportunities and technology-driven learning programs enable your development and agility.

Your Health, Your Wealth, Your Life: Competitive pay, comprehensive benefits and flexible schedules designed so you thrive — at work and beyond.

Empowered to Be Your Best: Use your strengths to make a difference in the lives of one another, our customers, our communities, and our planet.

Here, the possibilities are endless because we offer: