System Integration/Testing Engineer - Level 5 (Secret)

Lockheed Martin
Fairfax, VA

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. Were creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security vision. Were erasing boundaries and forming partnerships across industries and around the world. Were advancing spacecraft and the workforce to fuel the next generation. And were 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.

LockheedMartinSpace is seeking a Level5 System Integration/Testing Engineer to lead the integration, test, and verification of advanced Global Navigation Satellite System (GNSS) and SatelliteBased Augmentation System (SBAS) solutions. The role involves applying rigorous systemsengineering and softwaredevelopment processes, ensuring compliance with industrystandard developmentassurance guidelines, and delivering highreliability navigation capabilities for our commercial customers.

Integration & Test Lead Develop and execute integration, test, and verification (IT&V) plans for GNSS/SBAS hardware and software, including testprocedure creation, test execution, data analysis, and reporting.

Assurance Standards Application Apply SAEARP4754A, SAEARP4761, RTCADO178C, DO278A, and/or DO254 as appropriate to ensure safety, reliability, and airworthiness.

Risk & Safety Analysis Conduct hazard assessments, FMEA, and other safety analyses; mitigate technical and program risks.

CrossDisciplinary Coordination Work closely with software, hardware, RF, electrical, and missionoperations teams to resolve integration issues.

Mentorship & Expertise Provide technical guidance to junior engineers and serve as a subjectmatter expert on GNSS/SBAS technologies.

Stakeholder Interaction Communicate status, risks, and technical findings to customers, suppliers, and subcontractors.

Benefits of Employment:
To promote the sharing of ideas, Lockheed Martin cultivates an inclusive work environment that inspires differences and big-picture thinking.

Here are some of the benefits you can enjoy:
Medical
Dental
401k
Paid time off
Work/life balance
Career development
Mentorship opportunities
Rewards & recognition
Basic Qualifications:
Familiar with the application of systems engineering and software development processes to the design, development, integration, test, and verification of complex systems.
Experience with Global Navigation Satellite System (e.g. GPS, Galileo, etc.)
Experience with the application of one or more of the following development assurance standards: SAE ARP4754A, SAE ARP4761, RTCA DO-178, RTCA DO-278A, and RTCA DO-254
Must have an Interim Secret Clearance to start with the ability to obtain and maintain a Secret clearance. (Must be a U.S. Citizen)
Desired Skills:
Satellite Based Augmentation System experience
Systems engineering background (requirements, design, interfaces, etc.)
Safety certification experience
Willingness / ability to travel
Secret clearance
Security Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.
Clearance Level: Secret
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: 9x80 every other Friday off
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, youre 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: SPACE
Relocation Available: Possible
Career Area: Systems Engineering: System of Systems Integration
Type: Full-Time
Shift: First
Posted 2026-05-08

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