Top Tech Jobs & Startup Jobs

Develops and validates guidance, navigation, and control algorithms for spacecraft rendezvous and proximity operations. Responsibilities include GNC simulator development, hardware architecture and trade-offs, embedded software verification, hardware-in-the-loop testing, subsystem integration, and system-level verification and validation. The role also conducts research, supports technical reviews and anomaly investigations, maintains configuration and requirements traceability, and mentors less experienced engineers.

Lead global cybersecurity risk management and governance across subsidiaries. Coordinate security reporting, incident and audit documentation, policies, standards, procurement, intelligence, and committee initiatives. Provide technical expertise on cyber governance, security controls, and strategic initiatives while supporting ISMS framework operations and collaboration among international IT and security teams.

Design, develop, validate, and integrate safety-critical real-time flight software for autonomous spacecraft and robotic servicing missions. Responsibilities include software architecture, subsystem interfaces, GNC and computer vision integration, fault detection and recovery, and SIL/HIL testing. The role also supports system integration, mission validation, technical reviews, cross-team coordination, and knowledge sharing.

Perform system safety analysis and design for spacecraft, ground systems, and operations. Define safety requirements, assess hazards and risks, lead FMEA, FTA, STAMP/STPA, and related analyses, and support FDIR and fail-safe design. Evaluate collision and debris risks for RPO and on-orbit servicing missions, ensure compliance with safety standards, develop verification plans, and maintain safety documentation. Provide safety expertise to program, mission, and operations teams while coordinating with multidisciplinary engineers, customers, and regulatory authorities.

Manage corporate accounting operations, including journal entries, accounts receivable and payable, reconciliations, fixed assets, depreciation, accruals, inventory valuation, monthly and annual closing, audit support, tax filings, financial reporting, and consolidation packages. The role also operates and improves accounting and expense reimbursement systems while collaborating with HR, procurement, engineering, and other departments.

Provides general affairs and office administration support, including ordering and inventory control, beverage and mail services, telephone reception, facility and cleaning vendor coordination, equipment and security card management, access control, fire safety inspections, and expense administration. The role supports workplace quality, employee experience, and a safe office environment while communicating in Japanese and business-level English.

Develop and validate mission-critical spacecraft flight software in C/C++, Python, and Java. Responsibilities include software design, coding, unit and integration testing, simulation-based verification, issue resolution, documentation, and subsystem integration. Improve CI/CD pipelines, containerized development environments, testing automation, and spacecraft simulation models. Collaborate with subsystem teams to clarify requirements and advance verification tasks. Knowledge of spacecraft control systems, AOCS, GNC, or FDIR is advantageous.

Develop and deploy guidance, navigation, and control algorithms for spacecraft rendezvous, proximity operations, autonomous navigation, pose estimation, and attitude/orbit control. Build high-fidelity spacecraft and orbital simulation environments, support flight software development and satellite integration, and perform verification, validation, hardware trade studies, FMECA, and FDIR activities. Collaborate with systems, computer vision, and flight dynamics teams across the full mission lifecycle, including on-orbit operations.

Design and integrate mechanical refueling subsystems for satellites, define interfaces and ICDs, plan and execute vibration/thermal/thermal-cycle tests, assemble hardware with production, manage procurement and supplier coordination, and validate capture and refueling mechanisms.

Lead and execute sales and business development activities to secure contracts with the Government of Japan and industry customers for on‑orbit services. Develop and implement communication strategies, engage customers and partners, produce competitive proposals, and coordinate with business leads. Perform related duties as assigned.