Spacecraft Thermal Engineer I/II

Rocket Lab; Long Beach (CA); On-site; USD 90,000 - 130,000; Full time

Job summary

Rocket Lab is hiring a Spacecraft Thermal Engineer I/II based at our Long Beach, CA headquarters. You will oversee thermal design, analysis, testing and validation for our space vehicles, partnering with design and test engineers to optimize thermal performance and drive design improvements. U.S.

citizenship is required for program access. The role covers modeling, trade studies, issue resolution, and collaboration across Space Systems with deliverables for leadership and investors.

Qualifications

• Bachelor’s degree in aerospace or mechanical engineering.
• Thermal engineering experience.
• U.S citizenship is required due to program requirements.

Responsibilities

• Complete thermal modeling and analysis of vehicles.
• Conduct thermal design trade studies balancing performance margins, resource use, risk, cost, and schedule.
• Identify and resolve thermal design issues for space vehicle components and assemblies.
• Design and execute thermal tests for space vehicle components and assemblies.
• Perform thermal model validation using test and in-flight data.
• Liaise with program and engineering staff on thermal design and test matters.

Skills

Thermal engineering

Communication skills

Independent worker

Education

Bachelor’s degree in aerospace or mechanical engineering

Master’s or PhD in aerospace or mechanical engineering

Tools

NX Space Systems Thermal

ANSYS

Teamcenter

Job description

About Rocket Lab

Rocket Lab is an end-to-end space company delivering responsive launch services, complete spacecraft design and manufacturing, payloads, satellite components, and more – all with the goal of opening access to space. 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 become the second most frequently launched U.S. rocket annually and has delivered more than 230 satellites to orbit, all while we work to develop Neutron, our upcoming medium-lift, reusable launch vehicle for larger constellation deployment. Our Space Systems business designs and builds our extensive line of satellites, payloads, and their components, including spacecraft that have been selected to support NASA missions to the Moon and Mars and components used on the James Webb Space Telescope.

SPACE SYSTEMS

At Rocket Lab, we’re not just launching rockets — we're building the future of space. Our Space Systems team builds everything from complete spacecraft, precision payloads to the components and subsystems that allow them to thrive in space, like solar panels, flight software, star trackers, optical systems, separation systems, radios, and more.

Our Space Systems team has enabled more than 1,700 missions, ranging from interplanetary exploration, in-space manufacturing to national security and defense initiatives. The team has built spacecraft, payloads, and components for missions to the Moon and Mars, working with partners including NASA, the Space Development Agency, and the U.S. Space Force. Whether it’s a single high-performance spacecraft, constellation, or the vertically integrated components that help them get to space — our world class Space Systems team is empowering some of the boldest and most ambitious space missions.

SPACECRAFT THERMAL ENGINEER I/II

Based out of Rocket Lab’s global headquarters in Long Beach, CA, the Spacecraft Thermal Engineer I/II is responsible for overseeing the thermal design, analysis, testing, and validation of Rocket Lab’s space vehicles. You’ll be expected to perform thermal modeling and data analysis while working closely with the test and design engineers to capture the vehicle’s thermal performance and provide input for design improvements. You will support the Space Systems organization, with deliverables required for internal leadership, board of directors, and investors.

What You’ll Get To Do

• Complete thermal modeling and analysis of vehicles
• Conduct thermal design trade studies that successfully balance performance margins, resource use, risk, cost, and schedule
• Identify and resolve thermal design, acceptance, and performance issues for space vehicle components and assemblies
• Design and execute thermal tests for space vehicle components and assemblies
• Perform thermal model validation using test and in-flight data
• Liaise with all levels of program and engineering staff on thermal design and test matters, and support other teams/disciplines as necessary
• Identify and research potential vendors of thermal control materials

(Please note: this position can be hired at the Thermal Engineer I or Thermal Engineer II level.)

Qualifications You Bring As Thermal Engineer i

• Bachelor’s degree in aerospace or mechanical engineering; or other engineering degree
• Thermal engineering experience
• U.S citizenship is required, due to program requirements

Qualifications You’ll Bring As a Thermal Engineer Ii

• Bachelor’s degree in aerospace or mechanical engineering; or other engineering degree
• 2+ years of Thermal engineering experience in the aerospace industry, as a thermal engineer or other hands‑on engineering role
• U.S citizenship is required, due to program requirements

These Qualifications Would Be Nice To Have

• Master's or PhD in aerospace or mechanical engineering; or other engineering degree
• Strong background in heat transfer
• Experience with thermal systems and passive thermal management techniques
• Familiarity using Siemens NX and Teamcenter, with emphasis on model interrogation and defeaturing for subsequent analyses
• Demonstrated experience with Thermal Desktop
• Experience with planning, execution, and data analysis of thermal balance tests
• Strong communication skills, both written and verbal
• Ability to work independently but also build strong working relationships with colleagues
• Experience with constant conductance and variable conductance heat pipes
• Experience working with multi-layer insulation: design, fabrication, installation, and test
• Experience with 0-D and 1-D thermal/fluid networks
• Familiarity with scripting languages such as Python and MATLAB
• Familiarity with thermal engineering tools such as NX Space Systems Thermal, ANSYS,