Senior Thermofluids Analyst - Neutron

Job Ref: 4812796003 | Type: Full-time

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About The Role


Rocket Lab is a global leader in launch and space systems. The rockets and satellites we build and launch enable some of the most ambitious and vital space missions globally, supporting scientific exploration, Earth observation and missions to combat climate change, national security, and exciting new technology demonstrations. Our Electron rocket has provided reliable access to orbit since 2018, becoming one of the most frequently launched rockets in the world. Neutron will be our next rocket on the launch pad, an advanced 13-tonne payload class, reusable rocket to launch the mega constellations of the future. Our space systems business includes our extensive line of satellites and components that have enabled more than 1,700 missions including the James Webb Space Telescope, NASA Psyche Mission, Artemis I, Mars Ingenuity helicopter, and more.  

Join our pioneering team and launch your career to new heights!


Rocket Lab’s Neutron team is responsible for bringing our new large rocket Neutron and its launch and test sites to life. From designing and testing Neutron’s structures and components, to firing up its new Archimedes engines, to setting up Neutron’s launch pads and test sites across the United States, joining the Neutron team is your opportunity to help launch a new large rocket for the very first time. 


As a Thermofluids Analyst in Rocket Lab’s Analysis team you will contribute to the analysis, design, validation, and improvements of subsystems on the Neutron launch vehicle. Day to day, you will be expected to process flight data to determine the environments experienced by vehicle components, demonstrate positive margins against these environments through detailed analysis, and set the requirements to validate this analysis through test. 

Key Duties  

  • Perform, validate, and document multiphysics analyses of launch vehicle systems and provide support for development projects, including:
    • Computational fluid dynamics (CFD) analysis of internal and external flows
    • Thermodynamic analysis of internal and external components
    • Aerothermal analysis for external heat loads
    • Multiphysics interaction, such as conjugated heat transfer (CHT), multiphase flow simulations, cryogenic propellant conditioning, ice build-up
    • Perform trade-off studies
    • System design and optimization, e.g. propellant management 
  • Perform risk and failure analysis on a component and system level 
  • Post-process and interpret ground and flight test data 
  • Conduct reviews of analyses. 
  • Work closely with design and test engineers to iterate through design concepts, determine test requirements, and demonstrate overall system performance. 
  • Provide vision, technical leadership, and coordinate analysis resources 

Ideal candidates will thrive in ambiguity, and are excited to work in a small, high performing team focused on continued learning and growth. Success in this position will be measured by the knowledge and experience you bring to the role, your ability to lead development projects without supervision, and your ability to successfully collaborate across teams to deliver results.


  • A degree in Mechanical Engineering or similar field 
  • 3+ year’s industry experience, ideally from the Aerospace, Automotive or Marine industries 
  • Demonstrated expertise with one or more industry standard CFD packages: Fluent, CFX, STAR-CCM+ 
  • Experience in aerodynamics: predicting forces, moments and generating aerotables and aerodynamic control 


  • Demonstrated experience with dynamic thermofluid systems:  
  • Buffeting 
  • Aerotable evaluation & characterisation 
  • Aerodynamic stability & control 
  • Propellant Dynamics (slosh, flow instabilities, Pogo) 
  • Experience with mechanical systems in a relevant field (e.g. aerospace, automotive, marine) 
  • Experience in python for mathematical modelling, analysis tool development and data handling (numpy, scipy, pandas, git, package deployment, continuous integration) 
  • Experience with experimental test methods, sensor selection and data post-processing/ interpretation 
  • The ability to work to deadlines within a high pressureenvironment 
  • Communication skills and the ability to build strong working relationships with colleagues and engineering professionals 
  • Demonstrated experience with one or more industry standard thermal modelling packages: Thermal Desktop, THERMICA, NX SST 
  • Familiarity with manufacturing processes, including conventional machining, and additive manufacturing 
  • Familiarity with industry standards (e.g. MIL-STD-1540, GSFC-STD-7000, ECSS-E-HB-32, NASA-STD-5001) 
  • Familiarity with Transient flow modelling/analysis. 


If the above sounds like you apply now!


We’re on a mission to unlock the potential of space to improve life on Earth, but that’s not an easy task. It takes hard work, determination, relentless innovation, teamwork, grit, and an unwavering commitment to achieving what others often deem impossible. Our people out-think, out-work and out-pace. We pride ourselves on having each other’s backs, checking our egos at the door, and rolling up our sleeves on all tasks big and small. We thrive under pressure, work to tight deadlines, and our focus is always on how we can deliver, rather than dwelling on the challenges that stand in the way.   

Important information:


To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), Rocket Lab Employees must be a U.S. citizen, lawful U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum, or be eligible to obtain the required authorizations from the U.S. Department of State and/or the U.S. Department of Commerce, as applicable. Learn more about ITAR here.

Rocket Lab provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. This policy applies to all terms and conditions of employment at Rocket Lab, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.

Applicants requiring a reasonable accommodation for the application/interview process for a job in the United States should contact Giulia Biow at dedicated resource is intended solely to assist job seekers with disabilities whose disability prevents them from being able to apply/interview. Only messages left for this purpose will be considered. A response to your request may take up to two business days.



For security reasons background checks will be undertaken prior to any employment offers being made to an applicant.  These checks will include nationality checks as it is a requirement of this position that you be eligible to access equipment and data regulated by the United States' International Traffic in Arms Regulations. 

Under these Regulations, you may be ineligible for this role if you do not hold citizenship of Australia, Japan, New Zealand, Switzerland, the European Union or a country that is part of NATO, or if you hold ineligible dual citizenship or nationality.  For more information on these Regulations, click here ITAR Regulations.


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