**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\. Lockheed Martin Space is seeking an experienced Systems Engineer Sr\. to support the Meridian program, focusing on the design and integration of the Ground Segment for a satellite communications system\. The ideal candidate will have a strong background in Systems Engineering, with a focus on systems architecture and design, excellent problem\-solving skills, and the ability to work effectively in a fast\-paced environment\. Responsibilities: • Develop and maintain the overall systems architecture for the Ground Segment, including system design, interfaces, and integration • Lead the design and integration of system components, ensuring seamless communication and functionality between components • Perform technical planning and trade studies to optimize system design and performance • Collaborate with cross\-functional teams, including software, hardware, and test engineers, to ensure system requirements are met and design intent is maintained • Develop and maintain technical documentation, including system diagrams, interface control documents, and design descriptions • Conduct system\-level analysis and simulation to validate system performance and behavior • Ensure that system design is aligned with program requirements and industry standards **Basic Qualifications:** • Experience with system architecture, design principles, and engineering best practices • Experience with systems design and integration, including system\-level analysis and simulation • Familiarity with Model Based Systems Engineering practices, implementation, and tools \(e\.g\., MagicDraw, Cameo, or similar\) • Bachelor of Science in Engineering or related STEM degree \(e\.g\., Aerospace, Electrical, Computer Science, or Systems Engineering\) or equivalent work experience • Active or current SECRET security clearance; US Citizenship required **Desired Skills:** • Experience in agile development process, roles, and rhythms \(e\.g\., Scrum, Kanban\) • Experience as part of a larger Ground Segment focused technical team, with knowledge of ground segment operations and maintenance • Master's Degree in Systems Engineering, INCOSE Certification, or relevant Graduate Certificate • Familiarity with industry\-standard tools and technologies, such as: • Modeling languages \(e\.g\., SysML, UML\) • Simulation and analysis tools \(e\.g\., MATLAB, Simulink\) • Collaboration and version control tools \(e\.g\., Git, SVN\) • Experience with test and validation methodologies, including test planning, execution, and reporting • Knowledge of cybersecurity principles and practices, including risk management and mitigation • Excellent communication, collaboration, and problem\-solving skills **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:** 4x10 hour day, 3 days off per week **Lockheed Martin is an Equal Opportunity/Affirmative Action Employer\. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status\.** **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: System Architecture **Type:** Full\-Time **Shift:** First