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 is seeking an energetic and high performing Responsible Systems Engineer (RSE), Senior Staff to join our mission as the Mk21A Reentry Vehicle (RV) RSE in King of Prussia, PA! The Mk21A RV RSE: • Reports through the program directly to the Chief Engineer and Deputy Chief Engineer and is responsible for technical performance associated with design, build, test, and delivery of all RV hardware required for the MK21A EMD program. • This individual will be able to provide clear summary of performance, status, and issues to all levels of the MK21A organization related to the RV scope. • Is the technical expert who maintains a full understanding of the Mk21A RV system and verifies compliance at the system level. • Leads all technical aspects of the RV subsystems, including guidance and leadership of the CPEs supporting each subsystem, and integration of the RV components that constitute the RV subsystem for all RV pedigrees and configurations. Multiple CPEs will report through the RV RSE. Has a dotted line relationship to the RV IPT Lead and is held accountable for cost and schedule of the RV deliverables. • Participates in problem solving investigations, troubleshooting, development of corrective action plans, and integration of technical requirements. • Is responsible for having a complete understanding of program-unique and Space command media which ensures the Mk21A RV systems meet technical requirements throughout their lifecycle. • Is the technical advocate for RV systems who gathers information, supports major reviews, participates in critical production and design decisions, and other activities to support overall RV system assessments. • Responsible for certification of the RV (Functional Configuration Audit and Physical Configuration Audit) prior to final delivery. • Leads the RV team in the development and sustainment of the model-based Engineering artifacts and processes. This position is located in Valley Forge, PA. Occasional travel will be required. Successful candidates typically have 14+ years of professional experience with a bachelor's degree or 12+ year of professional experience with a master's degree.