Senior Mechanical Engineer - Thermal Control Systems

Join VAST as a Senior Mechanical Engineer specializing in Thermal Control Systems. In this pivotal role, you will lead the design and development of cutting-edge thermal management solutions for our advanced engineering projects. Your expertise will directly contribute to the optimization of our systems, ensuring safety, efficiency, and sustainability.As a key member of our engineering team, you will collaborate with multidisciplinary teams to solve complex thermal challenges, conduct simulations, and implement innovative designs. Your leadership will guide junior engineers, fostering an environment of growth and excellence.

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.

Join our team at AECOM as an Environmental Technician in Long Beach, where you will play a vital role in supporting environmental projects and compliance initiatives. In this dynamic position, you will be responsible for conducting field assessments, collecting samples, and analyzing data to help ensure environmental standards are met. This is an exciting opportunity for individuals passionate about environmental science and sustainability.

Vast seeks a second shift NDE Level II, RT Level II Technician for its Long Beach, California facility. This full-time, non-exempt role reports directly to the Supervisor, NDE. The technician will contribute to the development of systems essential for designing and constructing artificial-gravity, human-rated space stations. What you will do Support projects focused on advanced space station technology and manufacturing. Work on initiatives that push the boundaries of current engineering and human achievement. Assist in building and testing critical systems for artificial-gravity modules. Role details Second shift schedule Based in Long Beach, California Full-time, non-exempt position Reports to Supervisor, NDE About Vast Vast develops next-generation space stations to support a sustained human presence in space for America and its allies. The company emphasizes advanced microgravity research and manufacturing, aiming to enable a new space economy for government, corporate, and private clients. Vast is rapidly developing the multi-module Haven Station, with Haven-1 on track to become the world’s first commercial space station. The team prioritizes safety and precision in every phase of its mission.

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 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:

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.

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.

At Relativity Space, we are revolutionizing the aerospace industry by constructing rockets that not only meet the demands of today but also pave the way for groundbreaking advancements of tomorrow. Our Terran R vehicle is designed to efficiently deliver customer payloads to orbit, addressing the increasing need for launch capacity. This is merely the beginning; achieving commercial success with Terran R will open doors to new opportunities in science, exploration, and innovation, driving progress beyond the conventional.Joining Relativity means becoming part of a vibrant culture where autonomy, ownership, and significant impact are present at every level. Here, you will not just perform tasks; you will tackle complex problems that have yet to be solved, contributing to the development of a rocket, a factory, and a business from the ground up. Whether your expertise lies in propulsion, manufacturing, software, avionics, or corporate functions, you will collaborate across diverse teams, influence key decisions, and witness your work come to life in record time. At Relativity, creativity and technical rigor harmoniously coexist, and your insights will shape the narratives we create together. This is a unique moment in time where you can leave a lasting mark on the product, the process, and the culture, while being part of the tangible momentum of Terran R. The most impactful work of your career awaits. Join us.About the Team: The Factory Test team is responsible for designing, building, and operating the essential infrastructure required to test nearly every component of the Terran R rocket at our headquarters in Long Beach, CA. This centralized approach allows engineers and technicians to gain exposure to the entire product lifecycle across a diverse range of part sizes and complexities. The scale and scope of our operations are substantial, with test stands capable of enduring millions of pounds of force. Team members lead multiple projects concurrently, fostering cross-functional collaboration and acquiring broad technical expertise without necessitating a background in aerospace. With significant testing campaigns on the horizon, including thrust structure and stage 2 testing, now is the perfect time to join our team. You will not just execute tasks; you will help design and expand the test infrastructure needed to meet the demands of our rapidly growing launch program.

Join our team at Relativity as a Staff Automation & Controls Systems Engineer in Long Beach, California. We are looking for a talented individual to lead the design and implementation of automation solutions and control systems that drive operational efficiency. You will play a crucial role in developing innovative technologies and systems to enhance our products and services.Your expertise will contribute to our mission of creating cutting-edge solutions in the tech industry. If you are passionate about automation and control systems, we want to hear from you!

Role overview The Spacecraft Thermal Engineer II/Senior Pipeline position at Rocket Lab in Long Beach, CA centers on designing and analyzing thermal systems that are essential for spacecraft performance and mission reliability. The work has a direct impact on the safety and success of Rocket Lab’s missions. What you will do Create thermal systems for spacecraft, considering both mission requirements and engineering limits Analyze and model how thermal systems perform to keep spacecraft components within safe temperature ranges Apply technical expertise to address complex thermal engineering problems Requirements Strong interest in aerospace and spacecraft systems Background in thermal analysis and design, through experience or education Drive to work on challenging projects that influence the outcome of space missions

At Relativity Space, we are revolutionizing the aerospace industry by creating advanced rockets designed to meet current demands and drive future innovations. Our Terran R vehicle is set to deliver customer payloads to orbit, addressing the growing need for launch capacity. This is only the beginning; achieving commercial success with Terran R will pave the way for new opportunities in science, exploration, and technological advancement, pushing the boundaries of the known. Joining Relativity means becoming part of a culture where creativity, autonomy, ownership, and impact are paramount. Here, you won’t just execute tasks; you’ll tackle previously unsolved challenges, contributing to the development of rockets, factories, and a groundbreaking business model. Collaborating across diverse teams—from propulsion and manufacturing to software and avionics—you will influence key decisions and witness your efforts come to fruition in record time. At Relativity, technical excellence and creative thinking go hand in hand, empowering you to shape the stories we create together. This is a unique opportunity to make your mark on the product, process, and culture of our organization, at a time when Terran R is gaining significant momentum. The most impactful work of your career awaits you. Join us.

At Relativity Space, we are revolutionizing the aerospace industry by developing rockets that address both current and future demands. Our innovative Terran R vehicle is designed to transport customer payloads into orbit, catering to the increasing need for launch capabilities. This is just the beginning; achieving commercial success with the Terran R will enable us to explore new frontiers in science, exploration, and innovation, setting the stage for progress that transcends the boundaries of knowledge.Becoming a part of Relativity means joining a culture where autonomy, ownership, and impact are paramount. Here, you will not merely execute tasks; rather, you will tackle unprecedented challenges, contributing to the development of a rocket, a factory, and a business from the ground up. Whether you are engaged in propulsion, manufacturing, software, avionics, or corporate functions, you will collaborate across teams, influence decisions, and witness your contributions materialize swiftly. At Relativity, creativity and technical rigor coexist, and your insights will shape the narratives we create together. This is a unique opportunity to make your mark on our product, process, and culture while being part of the tangible advancements of the Terran R, which is gaining momentum. Your most meaningful career journey awaits—join us.About the Team: The Tooling and Factory Automation team operates at the crossroads of design, manufacturing, and automation, crafting everything from large-scale structural fixtures to intricate tools that directly facilitate the production of the Terran R. As a design group embedded within the manufacturing organization, we delve into the needs of our internal partners to understand core issues, propose innovative solutions, and deliver the hardware necessary for accelerated production, smarter scaling, and enhanced operational efficiency. This team is also spearheading Relativity's expanding factory automation initiatives, a critical component of scaling Terran R's production across current and future facilities. You will have the autonomy to make impactful decisions, implement solutions, and observe their execution on the factory floor. Ultimately, you are not just designing tools or automated processes; you are defining how rockets and factories are built.

At Relativity Space, we are revolutionizing space exploration by designing and building rockets tailored to meet the demands of today while paving the way for tomorrow's advancements. Our innovative Terran R vehicle is set to deliver customer payloads to orbit, addressing the increasing need for launch capacity. This is merely the beginning; achieving commercial success with Terran R will propel us toward new horizons in science, exploration, and innovation, driving progress that extends beyond current boundaries.Joining Relativity means being part of a dynamic environment where autonomy, ownership, and significant impact are integral to every role. Here, you won't just perform tasks; you will tackle unprecedented challenges, contributing to the development of rockets, manufacturing processes, and our business model from the ground up. Whether your expertise lies in propulsion, manufacturing, software development, avionics, or corporate functions, you will collaborate across teams, influence strategic decisions, and witness the tangible results of your contributions in record time. At Relativity, creativity and technical excellence are intertwined, and your insights will help shape the narrative of our collective journey. This is a pivotal moment where you can leave your imprint on the product, the process, and the culture, while being part of the tangible momentum of Terran R. The most fulfilling work of your career awaits you. Join us.About the Team: The Factory Test team is responsible for designing, constructing, and operating the essential infrastructure to test nearly every component of Terran R right at our headquarters in Long Beach, CA. This centralized approach provides our engineers and technicians with a comprehensive understanding of the entire product lifecycle across a diverse range of part sizes and complexities. The scale of our operations is significant, with test stands engineered to withstand millions of pounds of force. Team members engage in multiple projects simultaneously, fostering collaboration and broad technical experience, regardless of prior aerospace background. With crucial campaigns ahead, including thrust structure and stage 2 testing, now is the opportune time to join us. You will not only execute tasks but also play a vital role in shaping and scaling the test infrastructure necessary to support a rapidly expanding launch program.

Join Rocket Lab and Shape the Future of Space!Rocket Lab is a pioneering end-to-end space company dedicated to providing responsive launch services, comprehensive spacecraft design and manufacturing, and innovative satellite components. Our mission is to democratize access to space, supporting critical scientific exploration, Earth observation, and national security through cutting-edge technology.Our Electron rocket stands as the second most frequently launched U.S. rocket, successfully delivering over 230 satellites into orbit. As we develop Neutron, our upcoming medium-lift reusable launch vehicle, we are excited to expand our capabilities for larger satellite constellations. Our Space Systems division designs and manufactures a diverse array of satellites, including those selected for NASA missions to the Moon and Mars, as well as components for the James Webb Space Telescope.About Our IT TeamAt Rocket Lab, our IT team plays a crucial role in ensuring that our global teams can effectively access information and operate seamlessly across various computer systems and networks. We are a dynamic group of problem-solvers who thrive in fast-paced environments, committed to supporting our proprietary systems and processes across all functions, from finance to launch operations.Role Overview: Senior Financial Systems Analyst IILocated at our headquarters in Long Beach, CA, the Senior Financial Systems Analyst II will collaborate closely with Finance, Accounting, FP&A, and Enterprise Information Systems (EIS) teams to design, implement, and optimize business systems that enhance operational efficiency and support scalable growth. The ideal candidate will possess a robust technical background coupled with a deep understanding of finance and accounting processes, excelling at aligning business needs with system capabilities. This position reports to the EIS Manager and works alongside other Business Analysts, frequently coordinating with the Business Systems and IT Operations teams to ensure the alignment of evolving business capabilities with stable technical systems and processes.

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 Relativity as a Quality Systems Engineering Specialist focused on Document Control. In this role, you will be instrumental in enhancing our quality management systems to ensure compliance and operational excellence. You will collaborate with cross-functional teams to develop and maintain documentation standards, ensuring that all processes are meticulously documented and updated.Your expertise will help drive continuous improvement initiatives and uphold our commitment to quality. If you are passionate about quality assurance and have a keen eye for detail, we encourage you to apply!

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.

ABOUT ROCKET LABRocket Lab is a pioneering end-to-end space solutions provider, offering responsive launch services, comprehensive spacecraft design and manufacturing, satellite components, and much more. Our mission is to democratize access to space, enabling critical scientific exploration, Earth observation, and innovative technology demonstrations. We are committed to addressing global challenges, including climate change and national security.Our Electron rocket has established itself as the second most frequently launched U.S. rocket annually, successfully delivering over 230 satellites to orbit. As we advance towards the development of Neutron, our forthcoming medium-lift, reusable launch vehicle, we are poised for larger constellation deployments. Our Space Systems division is responsible for designing and manufacturing a diverse array of satellites, payloads, and components, including those selected for NASA missions to the Moon and Mars, as well as key components utilized in the James Webb Space Telescope.SUPPLY CHAINThe Supply Chain team at Rocket Lab is integral to the seamless flow of materials, products, and components throughout the organization. Our team plays a pivotal role in the success of both our rocket and satellite programs, managing assembly kits for our technicians, overseeing inventory, handling shipping and receiving, and ensuring compliance and quality of all materials and products. Together, we form the backbone of the organization, linking all teams to achieve our shared goals.BUSINESS SYSTEMS ENGINEER IIAs a Business Systems Engineer II, you will take the lead in driving essential initiatives within the Supply Chain function, identifying opportunities for continuous improvement, and supporting the development of a world-class Supply Chain team. Your role will involve the creation and implementation of diagnostics and transformations, ensuring the delivery of high-quality results. To excel in this position, you must demonstrate strong analytical skills, a passion for problem-solving, and a critical thinking mindset.

ABOUT ROCKET LABAt Rocket Lab, we are pioneers in the space industry, offering comprehensive launch services, spacecraft design, manufacturing, and payload solutions, all aimed at making space accessible to everyone. Our innovative rockets and satellites support vital global missions in scientific exploration, Earth observation, and climate change initiatives, while also enhancing national security and demonstrating cutting-edge technologies.Our Electron rocket is the second most frequently launched U.S. rocket, having successfully placed over 230 satellites into orbit. We are also in the process of developing Neutron, our next-generation medium-lift, reusable launch vehicle designed for deploying large satellite constellations. Our Space Systems division is responsible for designing and building a diverse range of satellites and components, including those selected for NASA missions to the Moon and Mars, as well as equipment used in the James Webb Space Telescope.NEUTRONNeutron is our medium-lift launch vehicle, engineered to deliver the megaconstellations of the future, high-assurance payloads, and support human spaceflight. Leveraging the proven success of our Electron program, Neutron will provide a cost-effective and reliable launch solution.FLUID SYSTEMS ENGINEER IIAs a Fluid Systems Engineer II for the Neutron project, you will take the lead in designing, constructing, and testing the fluid systems integral to the Neutron launch vehicle. You will work closely with a talented team of engineers in the Fluid Systems department, transforming vehicle-level requirements into a fluid network that ensures Neutron operates with exceptional reusability and reliability akin to aircraft standards.WHAT YOU’LL GET TO DOConduct trade studies and sizing using analytical models, hand calculations, or test data to define essential elements of system architecture.Provide mentorship and guidance to team members both within and beyond the fluids team to inform best practices for fluid system design, testing, and operations.Lead critical design, manufacturing, and testing reviews for fluid systems.Collaborate with component design teams to create integrated solutions.