Thermal Analyst II - Propulsion

Join Relativity Space as a Thermal Analyst II specializing in propulsion systems. In this role, you will be instrumental in analyzing thermal performance, conducting simulations, and ensuring the reliability of propulsion technologies. Collaborate with a dynamic team of engineers, utilizing advanced tools and methodologies to drive innovation in aerospace engineering.

At Relativity Space, we are redefining the future of space exploration by building cutting-edge rockets that meet current demands and enable future breakthroughs. Our Terran R vehicle is designed to efficiently deliver customer payloads to orbit, addressing the increasing need for launch capacity. This is only the beginning; achieving commercial success with Terran R will pave the way for groundbreaking advancements in science, exploration, and innovation that extend beyond the known.Becoming a part of Relativity means embracing a culture of autonomy, ownership, and significant impact across all levels of the organization. You will not only execute tasks but will also tackle challenges that have yet to be solved, contributing to the development of a rocket, a factory, and a pioneering 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 decisions, and witness your contributions materialize rapidly. At Relativity, creativity and technical expertise go hand in hand, and your insights will help shape our collective narrative. This is a unique moment in time; it’s early enough for you to leave your imprint on the product, process, and culture, yet advanced enough that Terran R has become a tangible reality, gaining momentum. The most impactful 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. Each engineer is accountable for the entire lifecycle of their components, from initial design through production to qualification and flight. We foster a culture that encourages bottom-up decision-making, free from technical barriers, emphasizing ownership and accountability at every level. Designing engines capable of producing a quarter million pounds of thrust is just the beginning; as we move towards flight configuration qualification, the team is exploring innovations for future engines, including thrust enhancements, new cycles, and designs tailored for mass production.About the Role:

Join Relativity Space as a Staff Thermal Analyst specializing in propulsion systems. In this pivotal role, you will leverage your expertise to analyze and solve complex thermal challenges in rocket propulsion. Collaborate with a dynamic team of engineers in a fast-paced environment, driving innovative solutions that will push the boundaries of aerospace technology.

Join Our Team at Odys AviationAt Odys Aviation, our mission is clear: to revolutionize air travel by 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 congestion of major airports by utilizing city helipads and local airports for journeys under 1,000 miles—representing approximately 40% of all flights. Remarkably, our aircraft can reduce CO2 emissions by an average of 76% over tens of billions of flight miles globally.To achieve these goals, we have launched our UAV, Laila, designed for various applications including commercial logistics, medical transport, humanitarian aid, disaster relief, and defense missions. We are proud to collaborate with launch partners such as Fiji Airways, Honeywell, Aramex, and the US Navy, with first deployments scheduled for 2026 and existing orders already in place.Our team comprises skilled engineers from deep tech and aerospace backgrounds, committed to rapid iteration cycles and expertise in the aircraft certification process. Our collective experience includes developing custom drones, bringing multiple automotive platforms to production, and electrifying a range of transportation vehicles—vehicles that levitate, roll, and fly. We have dedicated our lives to mastering this challenge.Role OverviewOdys Aviation is on the lookout for a Junior to Mid-Level Mechanical & Thermal Design Engineer to bolster our Propulsion Team. In this dynamic role, you will be responsible for the design, analysis, and integration of mechanical and thermal systems that are critical to our high-power hybrid-electric propulsion systems, which include motors, generators, inverters, turbines, and their associated structures and cooling mechanisms.You will collaborate closely with electrical, manufacturing, testing, and flight teams to advance hardware from initial concepts through prototype development, testing, and iterative refinement. This role emphasizes hands-on involvement and offers substantial ownership and a robust growth trajectory as our propulsion systems evolve.

At Relativity Space, we are revolutionizing the aerospace industry by developing innovative rockets that address the demands of today and the possibilities of tomorrow. Our Terran R vehicle is designed to deliver customer payloads to orbit, responding to the increasing need for launch capacity. This is just the beginning. The success of Terran R will pave the way for groundbreaking advancements in science, exploration, and innovation, pushing the boundaries of what is known.When you join Relativity, you become part of a dynamic environment where autonomy, ownership, and impact are encouraged at every level. Here, you will not merely complete tasks; you will tackle unprecedented challenges, contributing to the development of a rocket, a factory, and a thriving 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 decisions, and witness your work materialize at incredible speed. Relativity fosters an atmosphere where creativity and technical excellence coexist, and your input will help shape the narrative we are creating together. This is a remarkable opportunity to leave your imprint on the product, the process, and the culture, as Terran R gains traction. The most significant work of your career awaits you. Join us.About the Team: Our engine manufacturing department is dedicated to creating high-performance products and manufacturing systems by consistently innovating in cost, quality, and lead time. Through collaboration across functions, a commitment to accountability, and a focus on safety, we support the Terran R program. We provide essential design feedback on new hardware iterations, develop novel manufacturing methods and systems, and ultimately produce engine and vehicle hardware for testing ahead of our inaugural launch. Highlights from our team in the past six months include the manufacturing and development of the first Aeon-R engine, completing thousands of hours of PBF printing, building and testing over 50 valves across 26 different iterations, and implementing significant process improvements along the way.

At Relativity Space, we are revolutionizing the aerospace industry by developing advanced rockets that address both current and future demands. Our Terran R vehicle is designed to transport customer payloads into orbit, fulfilling the increasing need for launch capacity. This is only the beginning—our success with Terran R will pave the way for groundbreaking advancements in science, exploration, and innovation, propelling progress beyond the limits of our current understanding.Joining Relativity means becoming a part of a culture that emphasizes autonomy, ownership, and impact at every level. Here, you won’t just perform tasks; you’ll tackle unprecedented challenges, contributing to the creation of rockets, factories, and a thriving business from the ground up. Whether your expertise lies in propulsion, manufacturing, software, avionics, or corporate functions, you will work collaboratively across teams, influence decisions, and witness your contributions materialize rapidly. Relativity is a dynamic environment where creativity and technical precision coexist, giving you a platform to define the narratives we are crafting together. This is a unique moment to make your mark on the product, process, and culture as Terran R gains momentum. The most significant work of your career is waiting for you—come join us!About the Team: The Engine Manufacturing Department is dedicated to producing high-performance products and manufacturing systems through continuous innovation focused on cost efficiency, quality, and lead time. Our team collaborates cross-functionally, maintaining high accountability and a steadfast commitment to safety as we support the Terran R program. We provide critical design feedback on new hardware iterations, develop innovative manufacturing methods, and ultimately construct engine and vehicle hardware for testing in preparation for our inaugural launch. Recent highlights include the successful manufacturing and testing of the first Aeon-R engine, completing thousands of hours of powder bed fusion printing, and implementing large-scale process improvements while building and testing over 50 valves across 26 variations.

At Relativity Space, we are at the forefront of revolutionizing rocket technology to meet the demands of today and unlock breakthroughs for tomorrow. Our flagship Terran R vehicle is designed to deliver customer payloads to orbit, responding to the escalating need for launch capacity. This endeavor is just the beginning; achieving commercial success with Terran R will enable us to propel advancements in science, exploration, and innovation, pushing the boundaries of what is possible.Joining Relativity means becoming part of a dynamic environment where autonomy, ownership, and impactful contributions are integral at every level. Here, you won't just perform tasks; you'll tackle unprecedented challenges, contributing to the development of rockets, factories, and a pioneering 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 decisions, and witness your work materialize in record time. Relativity is where creativity and technical excellence converge, and your insights will help shape the collective narrative we are crafting together. Now is a pivotal moment to make a lasting impact on our product, processes, and culture, as Terran R gains momentum. The most significant work of your career awaits. Join us!About the Team:The Engine Manufacturing department is dedicated to producing high-performance products and manufacturing systems through continuous innovation in cost, quality, and lead time. We support the Terran R program through cross-functional collaboration, a strong sense of accountability, and unwavering safety standards. Our responsibilities include providing design feedback on new hardware iterations, developing cutting-edge manufacturing methods and systems, and ultimately constructing engine and vehicle hardware for testing prior to our inaugural launch. Recent achievements of our team include the MDC of the first Aeon-R engine, completing thousands of hours of PBF printing, constructing and testing over 50 valves across 26 different iterations, and initiating large-scale process improvements along the way.

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.

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.

At Relativity Space, we are revolutionizing space travel by designing and manufacturing rockets that meet the demands of today while paving the way for tomorrow's innovations. Our Terran R vehicle is set to deliver customer payloads to orbit, responding to the increasing need for launch capabilities. However, this is merely the beginning. The commercial success of Terran R will create new pathways for scientific advancement, exploration, and innovation—pushing the boundaries of what we know.By joining Relativity, you become part of a culture that prioritizes autonomy, ownership, and impact at every level. Here, you won't just be completing tasks; you will be tackling unprecedented challenges, contributing to the development of a rocket, a factory, and a business from the ground up. Regardless of whether you're in propulsion, manufacturing, software, avionics, or corporate functions, you will collaborate across teams, influence decisions, and witness your contributions come to fruition at an astonishing pace. This is a place where creativity meets technical excellence, and your insights will shape the narratives we create together. Now is a pivotal moment where you can leave your imprint on the product, the process, and the culture, while the Terran R is gaining traction. The most impactful work of your career awaits you. Join us.About the Team: The Interplanetary Sciences Program was founded to broaden access to scientific exploration throughout our solar system. Its goal is to enhance planetary research by making it faster, more cost-effective, and more capable than ever before by reimagining the design, construction, and operation of science missions. Our aim is to empower scientists to deploy instruments to remote worlds without enduring decades of development or exorbitant costs.

At Relativity Space, we're revolutionizing the aerospace industry by crafting rockets designed to meet current demands while paving the way for future innovations. Our Terran R vehicle is positioned to successfully transport customer payloads into orbit, addressing the rising need for launch capacity. This endeavor is just the beginning; commercial achievements with Terran R will catalyze new avenues for scientific exploration, technological advancement, and groundbreaking discoveries.Joining Relativity means immersing yourself in an environment where autonomy, ownership, and significant impact are valued at every level. Here, you won't merely carry out tasks; you will tackle unprecedented challenges, contributing to the development of a rocket, a manufacturing facility, and a thriving business from the ground up. Regardless of whether your expertise lies in propulsion, manufacturing, software development, avionics, or corporate functions, you will collaborate with diverse teams, influence key decisions, and witness your contributions materialize rapidly. Relativity is a place where creative thinking complements technical precision, and your insights will help shape our collective journey. This is a unique moment to leave your signature on our product, processes, and culture, with Terran R gaining momentum and becoming a reality. The most fulfilling work of your career awaits. Be part of our mission.About the Team: The mission of the engine manufacturing department is to produce high-performance products and manufacturing systems through continuous innovation in cost, quality, and lead time. We support the Terran R program through cross-functional collaboration, heightened accountability, and a commitment to safety. Our responsibilities include providing design feedback on new hardware iterations, developing innovative manufacturing methods and systems, and ultimately constructing engine and vehicle components for testing ahead of our inaugural launch. Over the past six months, our team has achieved significant milestones, including the manufacturing of the first Aeon-R engine, completing thousands of hours of Powder Bed Fusion printing, constructing and testing over 50 valves across 26 iterations, and implementing large-scale process enhancements along the way.

Join Relativity Space as a Senior Propulsion Technician and play a pivotal role in revolutionizing space technology. In this position, you will be responsible for testing, assembling, and troubleshooting propulsion systems, working closely with our engineering teams. Your expertise will contribute to our mission of building the world’s first fully 3D-printed rocket.

At Relativity Space, we are revolutionizing the aerospace industry by constructing rockets that fulfill current demands and pave the way for future advancements. Our flagship Terran R vehicle is set to transport customer payloads into orbit, addressing the surging need for launch capacity. This is merely the beginning; achieving commercial success with the Terran R will unlock new avenues for scientific exploration, innovation, and groundbreaking advancements that extend beyond our current understanding.Joining the Relativity team means immersing yourself in a culture where autonomy, ownership, and impactful contributions are encouraged at every level. Here, your role transcends mere task execution; you will tackle unprecedented challenges, aiding in the development of a rocket, a manufacturing facility, and an entire business from the ground up. Whether your expertise lies in propulsion, manufacturing, software, avionics, or corporate functions, you will collaborate across diverse teams, influence critical decisions, and witness your efforts materialize swiftly. Relativity fosters an environment where creativity and technical precision coexist, and your insights will play a vital role in shaping our collective narrative. This is an extraordinary moment; it's still early enough for you to make a significant impact on our product, processes, and culture, while also being far enough along that the Terran R is becoming a reality and gaining momentum. The most meaningful work of your career awaits you. Join us.About the Team: Our Engine Manufacturing Department is dedicated to producing high-performance products and innovative manufacturing systems by persistently enhancing cost, quality, and lead times. Through collaborative efforts, accountability, and a commitment to safety, we support the Terran R program. Our responsibilities include providing design feedback on new hardware iterations, developing innovative manufacturing methods, and constructing engine and vehicle components for pre-launch testing. Notable achievements over the past six months include the manufacturing of the first Aeon-R engine, completing thousands of hours of PBF printing, constructing and testing over 50 valves across 26 different iterations, and implementing significant process improvements throughout.

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 space technology by creating rockets that address current demands and future innovations. Our Terran R vehicle is designed to transport customer payloads to orbit, catering to the increasing need for launch capacity. This is merely the beginning; achieving commercial success with Terran R will pave the way for groundbreaking advancements in science, exploration, and innovation, driving progress into uncharted territories.Becoming a part of Relativity means joining a team where autonomy, ownership, and impact are present at every level. You won't just carry out tasks; you'll tackle unprecedented challenges, contributing to the development of a rocket, a factory, and an entire business from the ground up. Whether your expertise lies in propulsion, manufacturing, software, avionics, or corporate functions, you'll collaborate across teams, influence decisions, and witness your contributions materialize in record time. Relativity is a place where creativity intertwines with technical precision, and your voice will be instrumental in shaping our collective narrative. This is a unique opportunity to leave your mark on the product, the process, and the culture as we bring Terran R to life. The most significant work of your career awaits you. Join us.About the Team: The Interplanetary Sciences Program was established to broaden access to scientific exploration throughout our solar system. Its mission is to accelerate planetary research, making it more affordable and capable than ever before by reimagining the design, construction, and operation of science missions. The program aims to empower scientists to deploy instruments to distant worlds without the lengthy development timelines and prohibitive costs that have historically been associated with such endeavors.

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 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.

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 Rocket Lab, a pioneering aerospace company, as a Spacecraft Thermal Engineer II/Senior. In this role, you will be responsible for the thermal analysis and design of spacecraft systems, ensuring their performance under various conditions. Collaborate with a talented team to develop innovative solutions that push the boundaries of space exploration.