Systems Engineer-IT Sr - Level 3 (Top Secret)
Lockheed Martin
King of Prussia, PA · Posted October 22, 2026
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About the job
Standard Job Description
Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future.
At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you.
As a Senior Systems Engineer-IT, you will:
Provide systems (server/application/network) administration of the development and production environments
Perform COTS hardware/software integration, testing and verification
Support system security activities including vulnerability management, access control and authentication, file system security, system hardening, compliance and auditing
Support operational site in use of the deployed baseline
Perform automation development and support activities (Python/Bash/Ansible scripting)
Documenting defects in discrepancy reports and collaborating with technical team on solutions
The information below reflects the standard job description for this position:
Performs technical planning, system integration, verification and validation, cost and risk, and supportability and effectiveness analyses for total systems, and information technology related responsibilities including design, development, and analysis of computer systems or programs based on and related to user or system design specifications; applying systems analysis techniques and procedures, including consulting with users to determine hardware, software, or system functional specifications. Analyses are performed at all levels of total system product to include: concept, design, fabrication, test, installation, operation, maintenance and disposal. Ensures the logical and systematic conversion of customer or product requirements into total systems solutions that acknowledge technical, schedule, and cost constraints. Performs functional analysis, timeline analysis, detail trade studies, requirements allocation and interface definition studies to translate customer requirements into hardware and software specifications. For positions that do not perform IT responsibilities, use E146, Systems Engineer.
Basic Qualifications
Virtualization experience
Linux and Windows systems administration capabilities for configuration and management, package management and software installation, troubleshooting/performance optimization, security support tasks
Ability to script (e.g., Bash, Python) to automate tasks and workflows
Ability to perform IT environment hardening/security management, including administration of Trellix
Security + or CISSP Certifications or other certification that fulfills DOD 8570 requirements
Active TS Clearance Required to Start
Desired Skills
VMWare/ESXi/vSphere experience
NetApp experience
vSAN experience
Experience implementing and managing STIGs
Software installations, account management (Active Directory & Group Policy), virtualization, networking, hardware design, procurement and installation, systems engineering, test and verification.
#LMSpaceSystemsEng #SpaceSecurity #SpaceNSS
Pay Information
Full-Time Salary Range: $95900.00 - $178100.00
At Lockheed Martin, we know mission success starts with taking care of our people. Our Total Rewards program is designed to attract top talent, support your well-being, and help you grow—both professionally and personally.
The salary range for this position is as listed on the requisition. Please note that the salary information listed is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market(work location) and business considerations when extending an offer.
Benefits offered: Medical, Dental, Vision, Flexible work arrangements and schedules (e.g., 4x10), 401(k) match, Paid time off, Holidays, Parental Leave, EAP, Flexible Spending Accounts, Education Assistance, Life Insurance, Short-Term Disability, and Long-Term Disability.
Annual short-term and/or long-term incentive compensation programs may be offered depending on the position. Payments under these annual programs are not guaranteed and can vary from year to year and are tied to a range of performance metrics.
For (Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.