Principal Propulsion Engineer, Engine Systems & Test

At Relativity Space, we are revolutionizing space travel by building innovative rockets that address both current demands and future possibilities. Our Terran R vehicle is designed to transport customer payloads into orbit, catering to the increasing need for launch capabilities. This is merely the beginning; achieving commercial success with Terran R will pave the way for new advancements in science, exploration, and innovation, enabling us to push the boundaries of what is known.Becoming part of Relativity means joining a team where autonomy, ownership, and impact are integral to every role. Here, you won’t just perform tasks; you will tackle unprecedented challenges, contributing to the development of a rocket, a manufacturing facility, and a thriving business from the ground up. Whether your expertise lies in propulsion, manufacturing, software, avionics, or corporate functions, you will collaborate across teams, influence decisions, and witness your work materialize in record time. At Relativity, creativity and technical precision coexist, and your insights will shape the narrative we are crafting together. This is a unique opportunity to make a significant impact on our product, processes, and culture, at a pivotal moment when Terran R is gaining momentum and becoming a reality. The most fulfilling work of your career awaits. Join us.About the Team:Our Propulsion team is dedicated to the design and production of high-performance, manufacturable engines for the Terran R. Engineers within this team oversee the entire lifecycle of their components, from initial design through production to qualification and flight. We cultivate a culture of grassroots decision-making, devoid of technical gatekeeping, where accountability and ownership are paramount. Designing engines capable of producing over 250,000 pounds of thrust is just the beginning. As we move towards flight configuration qualification, the team is actively exploring modifications for future engines, including thrust enhancements, new operational cycles, and designs optimized for mass production.About the Role:

ABOUT ROCKET LABRocket Lab is a pioneering space company dedicated to providing comprehensive launch services, innovative spacecraft design and manufacturing, and advanced satellite technology, all aimed at democratizing access to space. Our rockets and satellites facilitate some of the most critical space missions worldwide, from scientific research and Earth observation to climate change initiatives and national security projects.Our Electron rocket has established itself as the second most frequently launched U.S. rocket each year, successfully delivering over 230 satellites into orbit. We are also developing Neutron, our cutting-edge medium-lift, reusable launch vehicle designed for larger constellation deployments. In addition, our Space Systems division specializes in crafting a diverse range of satellites, payloads, and components, including those selected for NASA missions to the Moon and Mars as well as instruments used on the James Webb Space Telescope.NEUTRONNeutron represents a revolutionary medium-lift launch vehicle poised to support the mega constellations of the future, high assurance payloads, and human spaceflight ventures. As a reusable platform, Neutron promises a cost-effective and reliable solution, leveraging Rocket Lab’s successful track record with the Electron program. If you are eager to join a high-performing team and engage in the groundbreaking development of a reusable liquid launch vehicle, this is your chance!PROPULSION ENGINEER II – ARCHIMEDES ENGINE SYSTEMSIn the role of Engine Systems Propulsion Engineer, you will be instrumental in the development, testing, and operation of the Archimedes Engine family, a key component of the Neutron rocket program. This highly specialized position entails taking ownership of engine subsystems, conducting test campaigns, performing data analysis, and enhancing designs for reliability and operational efficiency, while also navigating system architecture decisions, managing interfaces, and optimizing vehicle requirements.Your success in this role will depend on your autonomy, technical acumen, curiosity, meticulous attention to detail, and your ability to distill complex systems into actionable plans while collaborating effectively across teams.

At Relativity Space, we are revolutionizing the aerospace industry by creating rockets that not only meet today's demands but also pave the way for future innovations. Our cutting-edge Terran R vehicle is designed to transport customer payloads into orbit, addressing the increasing need for launch capacity. This is merely the beginning; achieving commercial success with the Terran R will open doors to groundbreaking advancements in science, exploration, and technology.Becoming a part of Relativity means joining a team that values autonomy, ownership, and transformative impact at every level. Here, you won't just complete tasks; you'll tackle unprecedented challenges, contributing to the development of a rocket, a manufacturing process, and an innovative business from the ground up. Regardless of your role—be it in propulsion, manufacturing, software, avionics, or corporate functions—you will collaborate across teams, influence pivotal decisions, and witness your contributions come to life in record time. Relativity fosters an environment where creativity intertwines with technical excellence, and your insights will help shape our collective journey. This is a unique opportunity to leave your mark on the product, processes, and culture, while Terran R gains momentum and becomes increasingly tangible. The most impactful work of your career awaits. Join us.About the Team: Our Propulsion team is dedicated to designing and delivering high-performance, manufacturable engines for the Terran R rocket. Each engineer on the team is accountable for their components throughout the entire lifecycle—from initial design to production, qualification, and flight. We nurture a culture of bottom-up decision-making, free from technical constraints, where ownership and accountability are paramount. Designing engines capable of producing over 250,000 pounds of thrust is just the starting point; as we prepare for qualification, we are actively exploring upgrades for future engines, including enhancements in thrust, new operational cycles, and strategies for mass production.About the Role: As a Senior Propulsion Engineer at Relativity Space, you will play a pivotal role in our mission to advance rocket propulsion technology. This position requires a strong technical background, innovative thinking, and a commitment to excellence in engineering.

At Relativity Space, we are revolutionizing the aerospace industry by developing innovative rockets tailored to meet both current and future demands. Our Terran R vehicle is set to provide essential launch capacity for customer payloads, paving the way for scientific advancements and exploration. Joining our team means being part of a dynamic environment where autonomy and impact are integral at every level. You'll not only execute tasks but also solve intricate challenges, contributing to the creation of rockets, manufacturing processes, and a thriving business. Collaborate across various teams, influence decisions, and witness your contributions come to life swiftly. Relativity is where creativity meets technical excellence, and your voice will shape our collective journey. Now is the perfect time to make a meaningful impact on our products, processes, and culture as we gain momentum with the Terran R. Your most significant career opportunity awaits—join us!

At Relativity Space, we are revolutionizing space exploration by designing and launching rockets that cater to the demands of today and the innovations of tomorrow. Our flagship Terran R vehicle is set to transport customer payloads to orbit, addressing the increasing need for reliable launch capacity. But our vision extends beyond mere launches; achieving commercial success with Terran R will unveil new avenues for scientific advancement, exploration, and groundbreaking innovation that transcends the boundaries of current knowledge.Joining Relativity means being part of a dynamic environment where autonomy, ownership, and impactful contributions are encouraged at every level. Here, you won't just complete tasks; you'll tackle unprecedented challenges, contributing to the development of rockets, factories, and a pioneering business from the ground up. Whether your expertise lies in propulsion, manufacturing, software, avionics, or corporate functions, you'll collaborate across teams, influence critical decisions, and witness your contributions come to fruition in record time. Relativity is a place where creativity and technical rigor coexist, and your insights will shape the narrative of our journey. This is a unique opportunity to leave your mark on our product, processes, and culture as we accelerate the momentum of Terran R. The most fulfilling work of your career awaits you. Join us.About the Role: As a pivotal member of the Engine Systems & Test Team, you will engage in a broad spectrum of activities, including simulation and software tools, system-level architecture, requirements, and interface management, as well as component and integrated system hotfire testing. Our collaborative efforts span across various teams, including component engineers, manufacturing, and our testing and launch teams at Stennis and Cape, to produce engines that will successfully propel the Terran rocket into orbit. We are dedicated to continuous improvement and fostering the development of both our technical hardware and our talented human resources alike.We are currently seeking engineers for our integrated engine test team, responsible for testing complete engine assemblies. Your role may involve various areas depending on your expertise and the team’s evolving needs.

Join Relativity Space as a Senior Propulsion Test Lead Engineer where you will play a pivotal role in our mission to revolutionize space travel. In this exciting position, you will lead the propulsion test team, ensuring the successful testing and validation of propulsion systems for our innovative rocket designs.Your responsibilities will include developing test plans, overseeing test execution, and analyzing data to provide insights that drive product improvements. You will work closely with design and manufacturing teams to ensure alignment on project goals and timelines.

At Relativity Space, we are revolutionizing the aerospace industry by developing innovative rockets tailored to meet both current demands and future breakthroughs. Our cutting-edge Terran R vehicle is designed to efficiently deliver customer payloads into orbit, addressing the increasing need for launch capacity. This is merely the beginning; achieving commercial success with Terran R will create new avenues for advancing science, exploration, and technological innovation, pushing the boundaries of what is possible.Joining the Relativity team means becoming part of a dynamic environment where autonomy, ownership, and impact are central to every role. You will not only execute tasks but also tackle unprecedented challenges, contributing to the development of a rocket, a factory, and a pioneering business from the ground up. Whether your expertise lies in propulsion, manufacturing, software, avionics, or corporate functions, you will engage in collaborative decision-making, influence outcomes, and witness your contributions come to fruition rapidly. Relativity fosters a culture where creativity and technical excellence coexist, and your input will shape our collective journey. This is a pivotal moment to leave your imprint on our products, processes, and culture, with Terran R gaining momentum and becoming a tangible force in the industry. The most fulfilling work of your career awaits—join us!About the Team:The Propulsion team at Relativity is dedicated to developing and delivering high-performance, manufacturable engines for the Terran R rocket. Our engineers oversee the entire lifecycle of their components, from initial design and production to qualification and flight. We cultivate a culture of grassroots decision-making, free from unnecessary technical barriers, where accountability and ownership are prioritized. Designing engines capable of producing over a quarter million pounds of thrust is just the beginning; as we move into the qualification phase for flight configurations, our team is actively exploring enhancements for future engines, including thrust upgrades, new operational cycles, and designs optimized for mass production.About the Role:As a Staff Propulsion Engineer, you will play a pivotal role in the engine systems and testing phases, contributing your expertise to propel our projects forward and drive innovation in our propulsion technologies.

At Relativity Space, we are revolutionizing the aerospace industry by creating innovative rockets designed to meet the demands of today while paving the way for future breakthroughs. Our Terran R vehicle is set to deliver customer payloads to orbit, addressing the increasing need for launch capacity. This is only the beginning; achieving commercial success with Terran R will open new avenues for scientific advancement, exploration, and innovation, driving progress beyond the limits of our current understanding.Joining Relativity means becoming part of a culture where autonomy, ownership, and impact are integral to every role. Here, you won’t just be executing tasks; you will be tackling unprecedented challenges, contributing to the development of rockets, factories, and an entire business from the ground up. Whether your expertise lies in propulsion, manufacturing, software, avionics, or corporate functions, you will collaborate across teams, influence decisions, and witness your contributions come to fruition in record time. Relativity is where creativity meets technical excellence, and your insights will help shape the narrative of our collective journey. Now is an exceptional moment to leave a lasting impact on our products, processes, and culture, as Terran R evolves into a tangible and dynamic entity. The most fulfilling work of your career awaits. Join us.About the Team: The Propulsion team at Relativity is dedicated to the development and delivery of high-performance, manufacturable engines for the Terran R. Engineers within this team are responsible for the entire lifecycle of their components, from initial design through production, qualification, and flight. We cultivate a culture of inclusive decision-making, free from technical barriers, where accountability and ownership are paramount. Designing engines capable of producing over a quarter million pounds of thrust is just the beginning. As we transition to qualification of the flight configuration, our team is actively exploring enhancements for future engines, including thrust upgrades, new operational cycles, and design optimizations for mass production.About the Role:

Join Rocket Lab, a leading aerospace manufacturer and small satellite launch service provider, as a Senior Propulsion Systems Engineer. In this role, you will be at the forefront of propulsion technology, contributing to innovative rocket systems that are reshaping the future of space exploration.

Join Relativity Space as a Senior Propulsion Engineer within our Integrated Design team, where innovative minds collaborate to revolutionize the aerospace industry. In this advanced role, you will leverage your expertise to design, develop, and optimize propulsion systems for our next-generation launch vehicles. Your contributions will play a vital role in enhancing our capabilities and driving the success of our missions.

As a Staff Propulsion Test Responsible Engineer at Relativity Space, you will play a crucial role in ensuring the success of our propulsion testing initiatives. Your expertise will guide the design and execution of test plans, ensuring they align with our innovative aerospace projects. You will collaborate with cross-functional teams to drive continuous improvements and ensure safety and efficiency in our test operations.

At Relativity Space, we are revolutionizing the aerospace industry by designing cutting-edge rockets to meet today's demands and pave the way for tomorrow's innovations. Our Terran R vehicle is set to deliver payloads into orbit, addressing the increasing need for launch capabilities. Achieving success with Terran R will not only transform commercial spaceflight but will also open new avenues for scientific exploration and technological advancements. Joining our team means embracing a culture of autonomy, ownership, and significant impact at every level. Here, you will go beyond merely executing tasks; you will tackle unprecedented challenges, contributing to the development of a rocket, a factory, and a pioneering business from the ground up. Collaborate across various disciplines—be it propulsion, manufacturing, software, avionics, or corporate functions—shaping crucial decisions and witnessing your contributions come to fruition in record time. Relativity is where creativity meets technical excellence, and your input will help shape the narrative of our collective journey. Now is an opportune moment to make your mark on our product, processes, and culture, as we advance with tangible momentum on the Terran R. The most impactful work of your career awaits you. Come join us!

ABOUT ROCKET LABRocket Lab is a pioneering end-to-end space solutions provider dedicated to making space accessible. We offer responsive launch services, comprehensive spacecraft design and manufacturing, payloads, satellite components, and more. Our mission is to facilitate scientific exploration, Earth observation, and vital initiatives addressing climate change and national security. Our innovative rockets and satellites enable some of the most ambitious space missions globally.Our Electron rocket has gained recognition as the second most frequently launched U.S. rocket each year, successfully delivering over 230 satellites to orbit. We are also developing Neutron, a medium-lift, reusable launch vehicle designed for deploying larger satellite constellations. Our Space Systems division designs and manufactures a diverse range of satellites, payloads, and components, including those chosen to support NASA missions to the Moon and Mars and elements utilized in the James Webb Space Telescope.NEUTRONNeutron is set to revolutionize space launch capabilities with its medium lift capabilities, designed for tomorrow's mega-constellations, high assurance payloads, and human spaceflight. This highly reusable platform promises a cost-effective and reliable solution, leveraging our proven track record with the Electron program. Join our high-performing team to push the boundaries in developing reusable liquid launch vehicles!SENIOR / PRINCIPAL PROPULSION ENGINEERIn your role as Senior/Principal Propulsion Engineer, you will be pivotal in the development, testing, and operation of the Archimedes Engine family, integral to the Neutron rocket program. You will be responsible for subsystems and engine operation, leading design, analysis, testing, and operational readiness. Your expertise will guide testing campaigns, data analysis, and design refinements to enhance reliability and operational efficiency.This position requires substantial technical expertise, autonomy, and the ability to synchronize teams and projects to meet program objectives. Principal Engineers are expected to provide substantial value beyond their immediate teams, influencing cross-functional collaborations and contributing to organizational success.

Join Relativity Space as a Propulsion Engineer II, Integrated Design, where you will play a crucial role in advancing aerospace technologies. In this dynamic position, you will contribute to the design and integration of propulsion systems, ensuring they meet the rigorous demands of modern space exploration. You will collaborate with a talented team of engineers, utilizing cutting-edge tools and methodologies to push the boundaries of what's possible in rocket technology.

ABOUT ROCKET LABRocket Lab is a pioneering space company that offers comprehensive launch services, spacecraft design and manufacturing, and advanced payload solutions. Our mission is to make space accessible and drive ambitious scientific exploration, Earth observation initiatives, and technology demonstrations designed to tackle climate change and enhance national security.Our Electron rocket ranks as the second most frequently launched U.S. rocket annually, successfully delivering over 230 satellites into orbit. We are also developing Neutron, our next-generation medium-lift, reusable launch vehicle, which aims to support larger constellation deployments. Our Space Systems division is dedicated to designing and constructing a wide array of satellites and payload components, including those selected for NASA missions to the Moon and Mars, as well as components utilized in the James Webb Space Telescope.NEUTRONNeutron represents a highly reusable medium-lift launch vehicle that is poised to deliver the mega constellations of tomorrow, high-assurance payloads, and support human spaceflight. By leveraging Rocket Lab’s successful track record with the Electron program, Neutron promises a cost-effective and dependable launch solution. If you are eager to join a dynamic team and contribute to the development of a revolutionary reusable liquid launch vehicle, this is your chance!PROPULSION DESIGN ENGINEER II / SENIOR PROPULSION DESIGN ENGINEER ILocated at Rocket Lab's headquarters in Long Beach, CA, the Propulsion Design Engineer will play a vital role in designing engine components such as combustion chambers, turbo machinery, and engine layouts for the Archimedes Engine. This position provides an exciting opportunity to engage in the design, analysis, and construction of hardware, while also supporting the Neutron and Archimedes teams in their engine development efforts.

About Rocket Lab Rocket Lab provides launch services, spacecraft design and manufacturing, and satellite components. The company's mission is to make space more accessible for scientific research, Earth observation, and technology demonstrations. With the Electron rocket, Rocket Lab has become the second most frequently launched U.S. rocket, placing over 230 satellites into orbit. Development is also underway on Neutron, a medium-lift reusable launch vehicle designed for larger constellation deployments. The Space Systems division designs and manufactures a wide range of satellites and components, including hardware supporting NASA’s Moon and Mars missions and parts used in the James Webb Space Telescope. Manufacturing at Rocket Lab Manufacturing teams at Rocket Lab turn engineering designs into operational hardware using advanced techniques such as 3D printing. The focus is on efficient project delivery, ensuring satellites and rockets meet customer requirements and expectations. Role Overview: Manufacturing Engineer II / Senior – Electron Propulsion This position is based at the Engine Development Center in Long Beach, CA. The Manufacturing Engineer will drive process improvements and product updates for the Rutherford rocket engine. The role works closely with the Director of Manufacturing Engineering and the Production team, providing essential deliverables for internal leadership, the board of directors, and investors. This opening may be filled at either the Manufacturing Engineer II or Senior Manufacturing Engineer level.

At Relativity Space, we are revolutionizing the aerospace industry by building rockets designed to meet today's demands and spearhead tomorrow's groundbreaking discoveries. Our Terran R vehicle is engineered to deliver payloads into orbit, addressing the increasing demand for launch capabilities. This is only the beginning; achieving commercial success with Terran R will unlock pathways to further advancements in science, exploration, and innovation, propelling progress into uncharted territories.Joining our dynamic team means stepping into a role where autonomy, ownership, and impactful contributions are valued at every level. At Relativity, you won't just be completing tasks; you'll be tackling unprecedented challenges, helping to design a rocket, a manufacturing facility, and a thriving business from the ground up. Regardless of your department—be it propulsion, manufacturing, software, avionics, or corporate functions—you will collaborate cross-functionally, influence key decisions, and witness your work materialize swiftly. Relativity is a unique environment where creativity and technical precision coexist, and your input will shape our collective journey. This is an exciting moment to make your mark on our product, processes, and culture, as we advance with Terran R gaining momentum. The most significant work of your career awaits. Join us.About the Team:Our Engine Manufacturing team is committed to delivering high-performance engines while continually enhancing innovative manufacturing systems to improve cost, quality, and lead times. You will not only execute design specifications but also provide valuable insights that shape hardware iterations while regularly collaborating with engineers to make pivotal decisions for the Aeon R program. After successfully developing and refining processes for our initial development engines, the team is now focused on ramping up production of flight engines to meet the aggressive launch schedule of Terran R.About the Role:You will work closely with design engineers and production teams to optimize manufacturing processes.You will contribute to the continuous improvement of engine performance and reliability.You will play a key role in troubleshooting and resolving manufacturing issues.

About Odys AviationAt Odys Aviation, our mission is clear: we are committed to creating safe and sustainable aircraft that significantly reduce travel time on the world’s busiest routes. Our flagship aircraft, Alta, allows travelers to bypass the common frustrations of large airports by utilizing city helipads and local airports for journeys under 1,000 miles—representing approximately 40% of all flights. This innovative approach also contributes to a notable average reduction of 76% in CO2 emissions across billions of flight miles.To achieve our vision, we have initiated the development of our UAV, named Laila, aimed at revolutionizing commercial logistics, medical transport, humanitarian assistance, disaster relief, and defense operations. We are collaborating with reputable launch partners including Fiji Airways, Honeywell, Aramex, and the US Navy, with our first deployments set for 2026 and firm orders already secured.Our team comprises seasoned engineers from both deep tech and aerospace sectors, dedicated to rapid iteration processes and mastering the aircraft certification journey. Our collective experience includes developing custom drones, producing multiple automotive platforms, and innovating electrified transportation solutions—from those that levitate magnetically to those that fly. We have been honing our skills and expertise throughout our careers to meet this exciting challenge.Key ResponsibilitiesUtilize fundamental electrical engineering principles to design, assess, and enhance electrical systems and subsystems.Develop and execute battery test profiles, including performance assessment and validation tasks.Aid in the development of Battery Management System (BMS) hardware and software, focusing on safety and protection features.Create and document aircraft-grade wire and cable harnesses utilizing Rapid Harness or comparable tools.Construct, assemble, modify, test, and troubleshoot prototype and production-level harnesses and electrical assemblies.

True Anomaly, Inc. develops technology to protect the critical domain of space. The team builds autonomous spacecraft, advanced payloads, mission software, and space-based interceptors to help the U.S. and its allies maintain security and respond to threats in orbit. The company values creative problem-solving, bold thinking, and teamwork. Every team member contributes to building asymmetric advantages and pushing boundaries to achieve ambitious goals. Role overview The Avionics System Integration & Test Engineer will play a key role in integrating and validating avionics systems for aerospace applications. This position involves both leading and supporting efforts to ensure that all subsystems work together reliably, even in demanding environments. What you will do Plan, execute, and document integration and system-level tests for avionics systems Work closely with design, hardware, and software teams to ensure seamless operation of all subsystems Help verify that avionics systems meet requirements for performance and reliability What matters here Creativity and innovation in solving complex challenges Commitment to achieving extraordinary outcomes Collaboration and valuing team contributions This role is based in Long Beach, CA.