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Systems Engineer Sr - Level 3; Top Secret

Job in King of Prussia, Montgomery County, Pennsylvania, 19406, USA
Listing for: Lockheed Martin Corporation
Full Time position
Listed on 2026-07-12
Job specializations:
  • Software Development
Job Description & How to Apply Below
Position: Systems Engineer Sr - Level 3 (Top Secret)
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.

Drafting, reviewing, and executing Systems level software test plans and procedures
Review Software features and capabilities and top create end to end integrated solutions
Collaborate with Software Engineers on feature design and implementation
Our team leverages industry standard open-source software solutions such as Git Lab, Kubernetes, Docker, and Rancher. Our automation-first and "everything as code" mindset allows our software engineers to focus their time and efforts on what is most important - building cutting edge functionality for our end users.
As a Systems Engineer on an Agile Scrum Team, you will have the opportunity to rapidly develop and deploy Integration and Test solutions for a complex space system following core engineering principles, ultimately enabling the delivery of fully functioning mission capability to end users securely and continuously.

Basic Qualifications

Recent on-program Systems Engineering experience (e.g., requirements development, systems test planning/execution, requirements analysis and verification, integration, etc.)
Demonstrated experience with applying systems engineering principles, concepts, and methods
Demonstrated experience with system integration, verification, and validation
Experience working on large-scale, agile software projects with multiple teams and stakeholders
Must have a Top Secret clearance to start with the ability to obtain and maintain a SCI security clearance (ship required).

Desired skills

Experience in MBSE principles, concepts, and tools such as Cameo
Develop and implement system test plans, procedures, and protocols
Support the integration, verification, and validation of systems and subsystems
Develop and maintain system architecture, design, and performance requirements in an Agile environment
Perform system analysis, modeling, simulation, and trade studies
Experience developing and maintaining automated system tests

Experience with Agile tools, such as JIRA and Confluence

Experience with cloud environments (AWS, Azure, Openstack, Google Cloud Platform, etc.) or traditional IT systems
Excellent communication and interpersonal skills, with the ability to work effectively in a team environment
Strong problem-solving and analytical skills, with attention to detail and ability to think critically
Ability to adapt to changing priorities and deadlines, with a focus on delivering high-quality results
Familiarity with the Space Domain

Experience with defensive cyber (e.g., penetration testing)
Active TS/SCI security clearance

#LMSpace Systems Eng
#Space Security
#SpaceNSS

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 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.

Other Important Information

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…
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