Job ID: 731420BR Date posted: Jun. 04, 2026
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.

The Fleet Ballistic Missile (FBM) Program is seeking a D5LE2 Test Missile Responsible Systems Engineer (RSE) to support Systems Engineering Integration and Test (SEIT) for the Trident II Fleet Ballistic Missile on the D5 Life Extension 2 (D5LE2) Program. The SEIT team oversees interface definitions, plans and executes verification processes, and supports D5LE2 development under the FBM Program.

The D5LE2 Test Missile RSE is the technical advocate for the Missile System Test Configuration ("Test Missile") from requirements definition, design, integration, testing, and development flight test operations through Initial Fleet Introduction (IFI).

This role provides engineering authority and accountability for Test Missile specific requirements, performance, reliability, and safety throughout D5LE2 development.

As the Test Missile RSE on the FBM D5LE2 program, you will:

• Lead the definition, verification, and validation of Test Missile requirements in alignment with program milestones and Navy customer requirements
• Ensure the technical integrity of the Test Missile while considering allocated cost and
schedule constraints
• Direct and mentor a multidisciplinary team (structures, propulsion, guidance, avionics, etc.) to deliver integrated Test Missile solutions
• Conduct trade studies and technology assessments such as for new materials and architecture concepts
• Oversee critical design reviews, test plans, and flight test execution; assess test data and drive corrective actions
• Interface with program management, customers, and certification authorities to ensure compliance with FBM D5LE2 Program requirements
• Prepare technical reports, risk registers, and status updates for senior leadership and external stakeholders
• Champion continuous improvement initiatives, including incorporation of Model Based Systems Engineering (MBSE) practices
Basic Qualifications:
• Experience with one or more of the following Systems Engineering principles - system or subsystem:

1) Design/Development
2) Integration
3) Test
4) Evaluation

• Experience in technical integration
• Experience providing technical guidance and support across multiple disciplines, and facilitating collaboration among stakeholders to drive project success
• Experience integrating various subsystems and components to meet system requirements
• Experience working with teams and stakeholders in development projects
• Prior experience as multiple package certified principle engineer (CPE) or prior experience as a subsystem responsible systems engineer (RSE)

• This position requires an Active Secret Clearance; US Citizenship required
Desired Skills:
• Demonstrated strong communication and presentation skills with the ability to articulate complex technical issues to peers, management, subcontractors and customers
• Demonstrated ability to work in a fast-paced, dynamic, collaborative team environment and to build consensus among peers and effective relationships with team members
• Demonstrated strong problem solving and conflict resolution skills
• Able to work effectively in a diverse team environment across various sites
• Systems Modeling and Architecture Experience
• Familiarity with Lockheed Martin Processes and Procedures
• Master's Degree in Engineering or related field
• Experience working within the FBM program
Security Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.
Clearance Level: Top 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, 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: SPACE
Relocation Available: Possible
Career Area: Systems Engineering: Other
Type: Full-Time
Shift: First