System Engineer Sr - Level 3 - Top Secret Clearance Required

Reference: 732755BRPosted: 2026-06-17Location: King of Prussia, PennsylvaniaClearance: TS/SCICompany: Lockheed MartinDescription:The coolest jobs on this planet… or any other… are with Lockheed Martin Space.At the dawn of a new space age, Lockheed Martin is a pioneer, partner, innovator, and builder. Our amazing people are on a mission to make a difference in the world and every single day we use our skills and experiences to create, design, and build solutions to some of the worlds’ hardest engineering problems. Our culture encourages employees to dream big, perform with excellence, and create incredible products. We provide the resources, inspiration and focus and if you have the passion and courage to dream big, we want to build a better tomorrow with you.You will be responsible for developing system level artifacts and engaging with customers, mission partners, and other stakeholders to satisfy and fulfill customer directed objectives As a member of the Systems Engineering team you will:• Perform in an accelerated, collaborative, dynamic small team environment, closely integrated with customers and contractors • Ensure consistency of requirements and traceability back to customer objectives • Planning and generating test cases in support of program milestone testing events• Perform requirements verification to ensure the system is able to meet customer needs• Ensure consistency of feature acceptance criteria to meet customer objectivesSuccessful Applicants will demonstrate effective communication skills, desire challenges and be willing to engage in frequent internal interactions with peers, teammates, and customers.Selected applicants must meet eligibility requirements for access to classified information, and must maintain the required security throughout the course of employmentBasic Qualifications:• Experience working with Agile teams leveraging Scrum or Kanban • Ability to communicate effectively and work in a collaborative environment • Experience developing Systems Engineering artifacts (e.g. requirements, architecture, procedures, etc.)• This position requires a Top Secret clearance with investigation date within 5 years clearance prior to start with the ability to obtain and maintain an SCI clearanceDesired Skills:• Experience with model-based systems engineering (MBSE) and proficiency with systems engineering toolsets• Experience with modern engineering practices such as Cross-Functional Agile teams • Experience with Systems Engineering tools such as JIRA, and Confluence. • Ability to interact with software developers to ensure mission requirements are satisfied • Experience with Integration testing, software testing, system testing and independent verification and validation• Experience with DevOps, CI/CD Pipelines, and deploying applications to test environments• Experience writing, reviewing, tracing, and verifying requirements• Experience working with external interfaces and generating documentation (e.g. ICDs) to support integration#LMSpaceSystemsEng #SpaceSecurity#SpaceNSSSecurity Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.Clearance Level: TS/SCIOther Important Information You Should KnowExpression 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 offLockheed 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 ProfessionalBusiness Unit: SPACERelocation Available: PossibleCareer Area: Systems Engineering: SoftwareType: Full-TimeShift: First