Propulsion Design Engineer

## Join ispace as a Propulsion Design Engineer and help shape the future of lunar exploration. We’re looking for a passionate engineer with broad experience in the mechanical design of spacecraft propulsion systems - someone excited about tackling complex technical challenges and contributing to missions that push the boundaries of what's possible in space.

If you're eager to grow with a dynamic and ambitious team, we’d love to hear from you. Please note: Due to the large number of applications we receive, only shortlisted candidates will be contacted. ## Ideal candidate profile The ideal candidate has strong system‑level engineering skills and practical knowledge of how to apply and integrate propulsion components into a lunar lander.

Their strength lies in using components effectively within a spacecraft system rather than developing components from scratch. #LI-Hybrid ## Key Responsibilities - Collaborate with other sub-system teams of Structure, Thermal, GNC, Avionics, Operation and AIT, supporting the lander propulsion design to a consistent system for current and future mission. - Support the propulsion team with technical point of view.

Validate analysis and model in the propulsion team, provide hands-on feedback and modification plan, and intervene those technical tasks as showing a better alternative approach if necessary.

Prepare the related technical reports, obtaining the approvals from the stakeholders. - Support propulsion design efforts for spacecraft system development with proposing practical applications such as trade-off studies, material, component, and manufacturing process selection while watching the feasibility in the project. - Find technical conflicts beyond the sub-system level and lead a solution through sub-system and system level discussions. - Support the creation and/or the maintenance of the spacecraft propulsion system relevant documents such as -sub-system requirement specification and sub-system design specification. - Support FMECA, launcher requirement, and the range safety related to the propulsion system. - Support the completion of the design reviews with closing the action items. - Support manufacturing, procurement, hardware assembly, integration, testing, and launch operation related to the propulsion system, which may include travel to the sites sometimes. - Evaluate component level and EPM tests related to the propulsion subsystem.

Coordinate with suppliers if necessary. - Prepare operational plan and input to other sub-system teams of Avionics, Thermal, GNC, and Mission. - Report status and issues to the team lead and the group manager. - Support to build a strong team with effective communications in the team. - Maintain proactive coordination between the teams to balance and achieve project goal. ## Basic Qualifications - Minimum 5 years experience in spacecraft propulsion design ( not ship or airplane ) - Have extensive test experiences with use of propulsion engineering models. - Have an experience in new industrial development project in aerospace field as a propulsion design engineer. - Have excellent interpersonal, organizational, and communication skills. - Be comfortable with change, fast-pace environment, and learning new things. - Have extensive experience with CAD software packages and drawing makings for the propulsion components and the jigs. - Proactive attitude, team player, and strong responsibility for own works. - Working level of English, Japanese business level is a plus ## Preferred Qualifications - Proficiency in Solidworks, FEmap, NASTRAN, or equivalent software packages. - Have knowledge of mechanical design, stress analysis, material selection, and fabrication processes for spaceflight hardware or equivalent. - Have knowledge of Geometric Dimension and Tolerance (GD&T) and of the stack-up calculation method for drawing tolerances. - Have knowledge of pressure drop analysis using dedicated pressure drop software. - Familiarity with pipework stand-off selection, propulsion component bracket design, and pipework - Familiar with build verification procedures for spacecraft propulsion system. - Familiar with NDI and welding process. - Have experienced in coordinating external manufacturers. - Have an experience of team lead more than one year. - Speaking and writing skills in English and Japanese.

Only shortlisted candidate will be contacted for interview.