Jobs in Japan
Explore hand-picked jobs in Japan for English speakers across tech, education, marketing, and more.
Vetted companies only. Apply from overseas.
Explore hand-picked jobs in Japan for English speakers across tech, education, marketing, and more.
Vetted companies only. Apply from overseas.
iSpaceThis job posting was originally in Japanese. The English version is automatically translated. Please visit the company site for the most accurate information.
ispace, inc. is looking for a highly motivated Propulsion System Engineer for the advanced research & development (ARD) group. This position is based in Tokyo, Japan and will require you to relocate. This is not a full remote position. The successful candidate will participate in two types of ARD projects: new technology development/demonstration and next generation lunar transportation, infrastructure, and resource utilization system architecture creation from initial concept to system preliminary design level. This role focuses on high thrust propulsion systems, including earth-storable propulsion and advanced propulsion concepts. You will work within a multidisciplinary, model-driven design team, developing Python-based propulsion models, exploring large tradespaces, leading technology demonstration projects, and shaping the propulsion architecture of future ispace vehicles. It is expected that technical solution concepts start at mid/low technical maturity and you will develop them to a CML2+ level (see JPL "concept maturity level" scale).
- Bsc. or Masters degree / experience in mechanical, aerospace, or related engineering fields. - Five or more years of relevant experience in analytical modelling of chemical propulsion, including pressurization system, feeding system, boil-off, propellant transfer, propellant management devices, rocket engine cycle, mass and fluid budget analyses. - Solid understanding of mission-level propulsion considerations (e.g., delta-V budgeting, propellant selections, pressurization and feedsystem architectures, usable and unusable propellants, sloshing, and mission environments). - 3 years of experience with relevant modelling programming languages (Python: NumPy, SciPy, Pandas, Matplotlib, or alternatively strong experience in matlab). - Ability to work in fast-paced, ambiguous conceptual environments and take proactive technical ownership.
- Experience in propulsion system components selection, trading-off technical compatibility, schedule, and cost - Experience with advanced propulsion architectures such as cryogenic and hybrid rocket propulsion systems. - Experience as systems engineering applying the Model Based Systems Engineering approach - Experience with conceptual design methods, low-fidelity modeling, or early-phase systems engineering. - Experience using Git for version control in a CI/CD environment, contributing to shared codebases, reviewing merge requests, and maintaining high-quality, reproducible model development practices.
