Develop spacecraft descent GNC algorithms, sensor models, and navigation systems, using C/C++ and Python. Evaluate performance, support closed-loop and system-level testing, and apply failure mode analysis.
ispace is a Tokyo-based lunar exploration company that designs and builds landers, orbital transfer vehicles and rovers. It provides payload transport to lunar orbit and the surface, spacecraft development, mission operations and lunar data services for government agencies, researchers and commercial customers. Revenue comes from customer contracts and public grants associated with development projects.
Its spacecraft lineup includes the RESILIENCE and larger ULTRA landers, the TENACIOUS micro-rover and planned lunar communications satellites. In 2026, ESA awarded ispace-EUROPE a €65 million contract to deliver the MAGPIE polar-ice rover mission, covering development, transport, operations and scientific data.
- No Japanese required
- 2%
- Can be worked in English
- 57%
- Visa-sponsorship signal
- 45%
- Remote or hybrid
- 24%
- Most requested
- Common areas
- Finance & accounting 6
- Project management 4
- Business development 3
- Operations 3
Measured from the 42 listings Ranked has live for ispace. Japanese level, visa signal and skills are AI-graded from each posting and can be wrong — confirm against the employer's original posting before applying.
42
open positions at ispace
Develop lunar-lander flight software for entry, descent and landing; design and validate GNC algorithms; support subsystem analysis, integration, mission operations and preparation.
Manage technical, operational, financial, stakeholder, and sales-support activities across lunar exploration missions, advising executive leadership on decisions and strategy.
Drive strategic business development and end-to-end project execution in the space sector, including client engagement, proposal development, contract negotiation, and global stakeholder coordination.
Prepare and review monthly, quarterly, and annual consolidation packages, enter consolidation adjustment entries, handle statutory disclosures, and coordinate with auditors.
Manage monthly, quarterly, and annual closes, audits, tax filings, statutory accounting, financial disclosures, and revenue recognition and cost accounting processes.
Plans and runs culture, employee engagement, internal communication, CSR and DE&I initiatives, including company events, town halls, intranet content and engagement analysis.
Manage office-wide projects, facilities and sites across Japan, employee service-desk strategies, internal events, communications, and office-space improvements.
Develop propulsion models in Python, explore large design tradespaces, lead technology demonstrations, and help shape propulsion architectures for future ispace vehicles.
Support spacecraft communication systems for lunar and deep-space missions through subsystem design, analysis, integration, testing, launch, and mission operations, coordinating across engineering teams.
Define spacecraft requirements, architectures, interfaces and test plans; manage performance budgets, assess design risks, coordinate subsystems, and support AIT and flight operations.
Design and integrate propulsion components within a lunar lander spacecraft system, applying strong system-level engineering skills and practical propulsion knowledge rather than developing components from scratch.
Support structural and thermal spacecraft design, perform computational analyses, prepare specifications and reviews, and assist with testing, manufacturing, integration, and supplier coordination.
Lead end-to-end development of a lunar lander orbiter system, defining GNC requirements, coordinating subsystem interfaces, managing algorithm performance, and supporting mission operations.
Supports spacecraft assembly, integration and testing through procedures, quality metrics, configuration tracking, instrumentation, verification activities, non-conformance resolution and manufacturing improvements.
Support structural and thermal spacecraft design for landers and transportation systems through component analysis, design reviews, testing, validation, and non-conformance evaluation.
Define spacecraft product baselines, architectures, interfaces, budgets and verification plans. Coordinate subsystem trade-offs, requirements, risks, testing and operational concepts across mission teams.
Lead mission-level technical and programmatic decisions for lunar and deep-space spacecraft, coordinating multidisciplinary teams across the lifecycle while balancing cost, schedule, risk, and performance.
Define spacecraft product baselines, requirements, architectures, interfaces, budgets, verification plans and operations concepts. Coordinate subsystem inputs, assess design changes, manage risks, and support spacecraft integration, testing and flight operations.
Lead spacecraft system test planning and execution, develop flight procedures, operate the spacecraft on-console, and coordinate with ground, systems, and mission operations teams for lunar missions.
Develop and validate spacecraft mission products, operational workflows, procedures, training and rehearsals. Operate missions on-console, support 24/7 shifts, and lead real-time anomaly resolution.
Lead satellite systems across requirements, design, development, testing, launch preparation, and operations readiness. Guide architecture, technical trade-offs, risk management, reviews, schedules, and engineering teams.
Support spacecraft product-baseline definition, system architecture, requirements, technical budgets, interface control, risk mitigation, testing, operations concepts, and propulsion-related systems models.
Design technical solutions for cislunar missions, coordinating engineers and working with business development teams and customers on proposals involving landers, transfer vehicles, lunar satellites, and rovers.
Design lunar mission trajectories, analyze covariance and correction maneuvers, develop astrodynamics software, manage requirements, refine processes, and support 24/7 flight dynamics operations.
Design spacecraft propulsion system layouts using 3D CAD, integrating components and piping within constrained spaces. Coordinate subsystem teams, validate analyses, support manufacturing, testing and launch operations, and resolve technical conflicts.
Designs, develops, integrates, tests, and maintains ground segment systems for missions. The role develops automation, supports CI/CD and mission rehearsals, and participates in on-console operations.
Develop orbiter guidance, navigation, and control software for a lunar lander, implementing and testing algorithms, supporting flight-software integration, and assisting mission operations.
Develop and maintain SIL, PIL and HIL platforms, integrate flight software with simulations, automate testing, and support mission operations including 24/7 shifts.
Own and support engineering, ERP, MES, manufacturing, and supply chain applications, managing integrations, requirements, testing, vendors, upgrades, and process improvement.
Design and develop embedded software for spacecraft, including lunar landers, covering avionics, attitude control, communications, power and data management, fault protection, integration, and testing.
Develop embedded software for spacecraft, including landers and transportation systems, from requirements and architecture through coding, integration, testing, documentation, and support.
Design and develop embedded flight software for lunar landers and other spacecraft platforms, covering implementation, integration, verification, validation and operations within an international systems engineering team.
Drive aerospace business development through product and service proposals, order-winning strategy, stakeholder coordination, contract acquisition, and collaboration with engineering and sales teams.
The Lead Finance Officer supports finance leadership at a listed deep-tech space company developing lunar landers and rovers and planning future lunar missions.
Leads integrated external communications across PR, web, social media, advertising and events, coordinating domestic and international stakeholders and aligning global PR with IR activities.
Lead finance planning and investor relations activities for a publicly listed deep-tech company developing lunar landers and rovers and conducting payload-transport missions for customers including JAXA and NASA.
Finance Officer in the Finance Group at a deep-tech space company developing and manufacturing lunar landers and rovers and conducting payload transportation missions for customers including JAXA and NASA.
Support finance planning and investor relations activities for a deep-tech space company developing lunar landers and rovers and conducting payload transportation missions for customers including JAXA and NASA.
Lead government lobbying and business development across Japan, the United States, and Europe. Oversee related teams, drive sales and mission profitability, and coordinate proposals with technical leadership.
Develops thermal models and analyses for spacecraft and landers, predicts temperatures, supports test planning and data analysis, and contributes to design reviews and verification.
Coordinates regulatory and technical work for spacecraft radio communications, preparing ITU and Japanese radio-license applications, interference assessments, inspections, and in-flight operations.
