System Integration Engineer Jobs in Colorado (NOW HIRING)

Job ID: 730737BR Date posted: Jun. 01, 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.
For over 60 years, the Fleet Ballistic Missile (FBM) team has supported the Navy's mission to provide affordable and credible strategic defense. We offer unique career opportunities and challenges on a program with a rich history and exciting future. We help keep this nation and our allies secure. The FBM Program is experiencing significant growth and we need your expertise to deliver amazing new technologies to our customers while maintaining the technical requirements of the strategic deterrence.
Learn about the Trident II D5 Fleet Ballistic Missile.
We want you to support the Fleet Ballistic Missile (FBM) Program by joining the Systems Engineering Integration and Test (SEIT) team as a Systems Engineer. The SEIT Requirements and Verification team handles all System level requirements for the Trident II ballistic missile (commonly known as the D5LE and D5LE2 missile), oversees interface definitions, plans and executes verification processes, and has fingers in every development project under the FBM Program.
We have a Weapon System level view of the FBM Program with activities related to integrating the FBM Life Extension 2 (LE2) missile into the submarine weapon system, as well as supporting efforts to integrate missile subsystems into the flight vehicle design.
As a Systems Engineer for Requirements and Verification on the FBM Life Extension 2 (LE2) program, you will:
• Develop/analyze/verify system level requirements and document & manage accordingly.
• Coordinate with customer and other contractors to execute verification analyses and tests.
• Organize/coordinate domain expert objective evidence creation and documentation.
• Organize/coordinate system level technical reviews.
Basic Qualifications:
• 1+ years of experience with Cameo Systems Modeler (or other SysML‑compatible MBSE tools); experience with Enterprise Architect, Rhapsody, or similar.
• Active Secret clearance with the ability to obtain and maintain a Top Secret as the final clearance
Desired Skills:
• Bachelor's (minimum) in Systems Engineering, Electrical Engineering, Computer Engineering, Computer Science, or a related STEM field.
• 3+ years of architecture, modeling, and integration work on embedded hardware‑software packages for complex systems (defense, aerospace, or high‑tech).
• Prior FBM Missile or other Missile or Missile Defense experience (to include threat system).
• Familiarity with Model Based Systems Engineering practices and implementation.
• Demonstrated ability to manage architectural baselines and change control for embedded packages.
• Experience defining and documenting embedded interfaces (e.g., SPI, I²C, CAN, Ethernet, memory maps, timing constraints).
• Experience with process development and deployment.
• Experience with DOORS.
• Ability to conduct functional verification, performance analysis, and trade‑studies for embedded packages.
• Documented LM Systems Engineering Bootcamp Training completion.
• Strong written and oral communication; capable of translating technical concepts for multidisciplinary audiences.
• Proven effectiveness in matrixed, cross‑functional environments.
• Familiarity with INCOSE MBSE standards, ISO 15288, MIL‑STD‑499; experience developing and tracking KPIs for embedded systems.
• Active Top Secret Clearance
Security Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.
Clearance Level: Top Secret with Investigation or CV date within 5 years
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 $73,400 - $129,260. 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: Models and Simulations
Type: Full-Time
Shift: First