Propulsion System Layout 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. - Perform 3D CAD-based layout design for integration of propulsion system components and piping. - Design for integration of multiple components within constrained spaces, considering the flow of pressurized gases and propellants, manufacturability, assembly, and testing. ## Minimum requirements - Minimum 5 years of experience in 3D CAD-based layout design, including integration of multiple components within constrained spaces. - Experience designing with manufacturability, assembly, and testing considerations in mind. - Experience in fluid system design. - Excellent interpersonal, organizational, and communication skills. - Prior experience in spacecraft development is not required; candidates should be adaptable, comfortable working in a fast-paced environment, and eager to learn new technical domains. - Proactive attitude, strong sense of ownership, and ability to work effectively in a team environment. - Working-level English proficiency; business-level Japanese is a plus. ## Preferred Qualifications - Knowledge of mechanical design, stress analysis, material selection, and fabrication processes. - Knowledge of Geometric Dimensioning and Tolerancing (GD&T) and tolerance stack-up analysis methods. - Experience coordinating with external manufacturers. - Experience in mass-production product development under structured design processes, including design reviews and quality control. - Knowledge of pressure drop analysis using dedicated software tools. - Experience with high-pressure fluid systems. - Business-level communication skills in English and Japanese.

We will prioritize local candidates due to visa's requirements. For overseas candidates, visa sponsorship will be provided. This is not a remote position and would require any successful candidate to relocate.