By bringing together people that use their passion for purposeful innovation, at Lockheed Martin we 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 development 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. At Lockheed Martin, we place an emphasis on empowering our employees by fostering innovation, integrity, and exemplifying the epitome of corporate responsibility. Your Mission is Ours. Lockheed Martin Missiles and Fire Control is seeking a 2026 Summer Intern in Orlando, FL. In this role, you will develop a system architecture using Model Based Systems Engineering (MBSE) techniques, develop models for current and future system designs, develop system and system element architectures, designs, and interface definitions while supporting necessary internal and external design reviews, and serve as the focal point for the development and communication of the system architecture for the various stakeholders including both internal and external customers. The successful candidate will perform system architecture design using SysML based tools, perform system functionality definition including system states and modes, define system design for software requirements/functional interfaces and mission planning features, and synthesize design characteristics into an implementable system architecture.