Job ID: 734085BR Date posted: Jul. 06, 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 underway on a generational opportunity to develop and deploy the D5 Life Extension 2 (D5LE2) Missile which will sustain our Submarine Launched Ballistic Missile (SLBM) fleet for decades to come.

This is a unique opportunity to work alongside our Navy Strategic Systems Programs (SSP) partners to shape the future of our nation’s strategic deterrent as part of the nuclear triad.

Learn about the Trident II D5 Fleet Ballistic Missile.

The Fleet Ballistic Missile (FBM) Program is seeking a System Integration Responsible System Engineer (SI RSE) to support the Flights Systems Integration team for the Trident II ballistic missile on the Life Extension 2 (LE2) program. The Flight Systems Integration team ensures technical integration activities across all the flight system capabilities and interfaces. The team ensures all interfaces are defined, compatible, testable and verifiable. The LE2 Flight Systems Integration SI RSE is the primary integrator across missile, guidance, fire control and payloads to ensure technical coherence across interfaces and capabilities to enable proper systems integration across all the subsystems.
As the LE2 Flight Systems Integration SI RSE on the FBM LE2 program, you will:
• Provide technical leadership to the team to ensure consistent approaches to interface definition and compatibility throughout the life cycle
• Provide technical leadership to the team to ensure test and analysis integration activities are fully enabled and planned
• Direct and mentor a multidisciplinary team (structures, propulsion, guidance, avionics, payloads, etc.) to deliver an integrated flight system solution
• Conduct trade studies and technology assessments for new materials and mission architecture concepts
Basic Qualifications:
• Experience in missile, spacecraft or satellite design, integration, test and/or operations or product development
• 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
• Active Secret security clearance
Desired Skills:
• Bachelors degree in Engineering, Physics or related discipline, or equivalent experience
• Previous missile experience
• Missile System or Missile Subsystem integration experience
• Missile or space segment design and test experience with one or more subsystems or fields outside of Systems Engineering
• Strong technical initiative
• Excellent written and verbal communication skills, strong social skills, and ability to build consensus among peers while building solid relationships with team members, leadership, and customers
• Ability to work in a fast-paced, synergetic team environment
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
Pay Rate: The annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is $128,400 - $226,435. For states not referenced above, the salary range for this position will reflect the candidate’s final work location. Please note that the salary information 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 and business considerations when extending an offer.
Benefits offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays.
(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.
This position is incentive plan eligible.
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