Liftoff jobs

Propulsion Analyst, Chamber and Nozzle (Raptor) Hawthorne, CA SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. PROPULSION ANALYST, CHAMBER AND NOZZLE (RAPTOR) Raptor Structural Analysts ensure that the world's most advanced rocket engine is capable of withstanding extreme pressures, temperatures, vibrations, accelerations, and aerodynamic loading from liftoff to landing. These engineers have a keen eye for detail and complex physics that enable successful performance of Starship's engines. If you possess an affinity for physics, structural mechanics, advanced computing, and unraveling intricate challenges while working with engine hardware, this Chamber and Nozzle focused role may be for you! RESPONSIBILITIES: - Conduct, document, and present static, thermal, dynamic, and fatigue analyses for Raptor Chamber and Nozzle through FEA and first principles to ensure performance requirements are met - Output requirements and capabilities for engine/stage interfaces for all phases of flight - Collaborate in driving necessary analyses throughout engine component design cycles - Ensure model predictions are grounded in reality through a practical hands-on approach - Work closely with hardware and test teams to drive model anchoring and design improvements BASIC QUALIFICATIONS: - Bachelor's degree or higher in an engineering discipline - 1+ years of experience in structural analysis, design, or manufacturing through extracurricular, internship, or full-time experience PREFERRED SKILLS AND EXPERIENCE: - Proficient

GNC Simulation Engineer II Long Beach, California At Relativity Space, we're building rockets to serve today's needs and tomorrow's breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. But that's just the start. Achieving commercial success with Terran R will unlock new opportunities to advance science, exploration, and innovation, pioneering progress that reaches beyond the known. Joining Relativity means becoming part of something where autonomy, ownership, and impact exist at every level. Here, you're not just executing tasks; you're solving problems that haven't been solved before, helping develop a rocket, a factory, and a business from the ground up. Whether you're in propulsion, manufacturing, software, avionics, or a corporate function, you'll collaborate across teams, shape decisions, and see your work come to life in record time. Relativity is a place where creativity and technical rigor go hand in hand, and your voice will help define the stories we're writing together. Now is a unique moment in time where it's early enough to leave your mark on the product, the process, and the culture, but far enough along that Terran R is tangible and picking up momentum. The most meaningful work of your career is waiting. Join us. About the Team: The Guidance, Navigation, and Control (GNC) and Performance teams are responsible for defining and analyzing how Terran R flies, from liftoff to landing. The work combines a variety of disciplines such as advanced modeling, orbital mechanics, software development, and dynamic systems

Senior GNC Simulation Engineer Long Beach, California At Relativity Space, we're building rockets to serve today's needs and tomorrow's breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. But that's just the start. Achieving commercial success with Terran R will unlock new opportunities to advance science, exploration, and innovation, pioneering progress that reaches beyond the known. Joining Relativity means becoming part of something where autonomy, ownership, and impact exist at every level. Here, you're not just executing tasks; you're solving problems that haven't been solved before, helping develop a rocket, a factory, and a business from the ground up. Whether you're in propulsion, manufacturing, software, avionics, or a corporate function, you'll collaborate across teams, shape decisions, and see your work come to life in record time. Relativity is a place where creativity and technical rigor go hand in hand, and your voice will help define the stories we're writing together. Now is a unique moment in time where it's early enough to leave your mark on the product, the process, and the culture, but far enough along that Terran R is tangible and picking up momentum. The most meaningful work of your career is waiting. Join us. About the Team: The Guidance, Navigation, and Control (GNC) and Performance teams are responsible for defining and analyzing how Terran R flies, from liftoff to landing. The work combines a variety of disciplines such as advanced modeling, orbital mechanics, software development, and dynamic systems

Propulsion Analyst, Structures (Raptor) Hawthorne, CA SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. PROPULSION ANALYST, STRUCTURES (RAPTOR) Raptor Structural Analysts ensure that the world's most advanced rocket engine is capable of withstanding extreme pressures, temperatures, vibrations, accelerations, and aerodynamic loading from liftoff to landing. These engineers have a keen eye for detail and complex physics that enable successful performance of Starship's engines. If you possess an affinity for physics, structural mechanics, advanced computing, and unraveling intricate challenges while occasionally working with engine hardware, this role may be for you! RESPONSIBILITIES: - Conduct, document, and present static, thermal, dynamic, and fatigue analyses on the Raptor engine through FEA and first principles to ensure performance requirements are met - Output requirements and capabilities for engine/stage interfaces for all phases of flight - Collaborate in driving necessary analyses throughout engine component design cycles - Ensure model predictions are grounded in reality through a practical hands-on approach BASIC QUALIFICATIONS: - Bachelor's degree or higher in an engineering discipline - 1+ years in structural analysis, design, or manufacturing via extracurricular, internship, or full-time experience PREFERRED SKILLS AND EXPERIENCE: - Proficient in statics, mechanics of materials, fatigue, dynamics, and/or heat transfer - Experience with FEA setup and post-processing - Able to perform hand-calculations to validate and

Simulation and Modeling Engineer II Long Beach, California At Relativity Space, we're building rockets to serve today's needs and tomorrow's breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. But that's just the start. Achieving commercial success with Terran R will unlock new opportunities to advance science, exploration, and innovation, pioneering progress that reaches beyond the known. Joining Relativity means becoming part of something where autonomy, ownership, and impact exist at every level. Here, you're not just executing tasks; you're solving problems that haven't been solved before, helping develop a rocket, a factory, and a business from the ground up. Whether you're in propulsion, manufacturing, software, avionics, or a corporate function, you'll collaborate across teams, shape decisions, and see your work come to life in record time. Relativity is a place where creativity and technical rigor go hand in hand, and your voice will help define the stories we're writing together. Now is a unique moment in time where it's early enough to leave your mark on the product, the process, and the culture, but far enough along that Terran R is tangible and picking up momentum. The most meaningful work of your career is waiting. Join us. About the Team: The Guidance, Navigation, and Control (GNC) and Performance teams are responsible for defining and analyzing how Terran R flies, from liftoff to landing. The work combines a variety of disciplines such as advanced modeling, orbital mechanics, software development, and dynamic

Senior Simulation and Modeling Engineer Long Beach, California At Relativity Space, we're building rockets to serve today's needs and tomorrow's breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. But that's just the start. Achieving commercial success with Terran R will unlock new opportunities to advance science, exploration, and innovation, pioneering progress that reaches beyond the known. Joining Relativity means becoming part of something where autonomy, ownership, and impact exist at every level. Here, you're not just executing tasks; you're solving problems that haven't been solved before, helping develop a rocket, a factory, and a business from the ground up. Whether you're in propulsion, manufacturing, software, avionics, or a corporate function, you'll collaborate across teams, shape decisions, and see your work come to life in record time. Relativity is a place where creativity and technical rigor go hand in hand, and your voice will help define the stories we're writing together. Now is a unique moment in time where it's early enough to leave your mark on the product, the process, and the culture, but far enough along that Terran R is tangible and picking up momentum. The most meaningful work of your career is waiting. Join us. About the Team: The Guidance, Navigation, and Control (GNC) and Performance teams are responsible for defining and analyzing how Terran R flies, from liftoff to landing. The work combines a variety of disciplines such as advanced modeling, orbital mechanics, software development, and dynamic

Launch Operations Mechanical Engineer Midland, Texas, United States AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected. Position Overview The Launch Operations Mechanical Engineer plays a critical role in the final, high-stakes phase of mission success. This position is responsible for overseeing mechanical processes and equipment at the launch base, ensuring all systems adhere to rigorous aerospace standards. You will bridge the gap between design and flight, managing the physical build, qualification, and configuration of the satellite while supporting the design of the essential Mechanical Ground Support Equipment (MGSE) required for site operations. Key Responsibilities: - Lead mechanical integration efforts at the launch site, ensuring the satellite is flight-ready and configured according to mission specifications. - Design and implement Mechanical Ground Support Equipment (MGSE) tailored for launch site operations, including handling fixtures, transport containers, and integration stands. - Oversee the mechanical assembly and qualification testing of satellite hardware, ensuring every component meets safety and performance standards prior to liftoff. - Enforce strict aerospace industry standards across all mechanical operations to mitigate risk and ensure mission reliability. - Work closely with integration, systems, and launch vehicle teams to synchronize mechanical activities