Senior Propulsion Systems Engineer I/II - Secret Clearance
Rocketlab · Long Beach, CA · Posted Jul 1, 2026
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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.
SENIOR PROPULSION SYSTEMS ENGINEER I/II - SECRET CLEARANCE
We're seeking a Senior Propulsion Systems Engineer I/II for our propulsion engineering team based out of Long Beach, CA. As a Senior Propulsion Systems Engineer, you are responsible for system-level and component-level ownership of space systems propulsion and fluidic development. These teams support our Space Systems division, and lead cutting-edge programs for civil, commercial, and defense customers.
(Please note: this position can be hired at the Senior Propulsion Systems Engineer I or Senior Propulsion Systems Engineer II level)
WHAT YOU’LL GET TO DO:
Owning development of new or existing products or systems, acting as technical lead to guide team through end-to-end development process
Conceptual and detailed performance calculations, systems modelling, analysis, and system designs
Requirements gathering, definition, and management
Systems engineering activities and leadership within the team
Test planning, setup, instrumentation, execution, and data analysis
Communicating with project stakeholders internal and external to the team
Technical risk-based decision making to the right/best solution when faced with an engineering challenge
Project management including schedule building and maintenance, identifying top priority items, tasking of other engineers and technicians, and communication of status to leadership and other teams
Mentorship and coaching of people within the team on technical and professional development
Defining and maintaining standard of excellence for their team through documentation, training, coaching, and review of others’ work
Contributing to engineering process development and documentation at Rocket Lab related to areas of experience
YOU’LL BRING THESE QUALIFICATIONS AS SENIOR PROPULSION SYSTEMS ENGINEER I:
Bachelor’s degree in engineering (aerospace, mechanical, mechatronics, or other technical discipline)
5+ years of experience in propulsion system development, or other high-performance field
Active Secret clearance with TS/SCI eligibility
US citizenship is required, due to program requirements
Expertise in propulsion system modelling, static and transient analysis, and model validation using test data software such as Amesim, EcosimPro, Simulink, or Simscape
Experience with end-to-end development process, including gathering requirements, detailed design, qualification, production, and acceptance testing
Experience with all steps in the Systems Engineering V and risk-based decision making
Experience working on propulsion systems utilizing different storable propellants, such as electrical and chemical
YOU’LL BRING THESE QUALIFICATIONS AS SENIOR PROPULSION SYSTEMS ENGINEER II:
Bachelor’s degree in engineering (aerospace, mechanical, mechatronics, or other technical discipline)
8+ years of experience in propulsion system development, or other high-performance field
Active Secret clearance with TS/SCI eligibility
US citizenship is required…