Payload Integration Engineer

The Payload Integration Engineer leads the technical process for integrating customer satellites with the ZERO rocket and completing the mission through orbital insertion. The role coordinates the satellite system configuration with the rocket’s technical constraints and is responsible for ensuring that the payload can be safely and reliably mounted and launched.

Responsibilities include preparing and reviewing Interface Control Documents (ICDs) and evaluating interface compatibility. The engineer confirms that customer satellites meet required safety and reliability standards, including applicable JAXA common technical documents. Before contracts are concluded, the role provides technical support to the sales team and explains technical considerations to customers.

The work covers mission planning, flight performance, mechanical and electrical interfaces, launch-environment conditions, launch windows, target orbits, and other interface requirements. The engineer manages technical requirements in Launch Service Agreements (LSAs) and Statements of Work (SoWs), defines requirements with internal engineers and sales personnel, and verifies technical feasibility.

The role also standardizes and continuously improves environmental test plans, launch-preparation procedures, launch-campaign plans for launch-site operations, and post-launch reviews. It promotes Mission Readiness Reviews (MRRs), makes technical transition and gate decisions, and supervises launch operations from a technical perspective.

At the launch site, responsibilities include managing logistics, safety, payload handling, and responses to abnormal situations. The engineer oversees the full process from hardware receipt through orbital insertion and ensures technical quality and safety throughout that process.

The posting does not state specific education, professional experience, employment-type, salary, or language requirements. The stated work location is the company’s Tokyo Second Branch in Koto-ku, Tokyo. The workplace is generally non-smoking indoors, with a designated smoking room in a shared area on the same floor. The posting also states that the scope of workplace changes may include locations designated by the company.