Mechanical Test Engineer

At ispace U.S., we’re not just going to the Moon—we’re redefining how we get there. Our missions push the boundaries of human and robotic exploration, driven by our belief: “Expand our Planet. Expand our Future.” By providing cost-effective lunar transportation, we are pioneering a future where space is within reach for scientific discovery, commercial ventures, and sustainable exploration.  
With locations in Japan, Luxembourg, and the United States, ispace is rapidly growing and leading the way in lunar exploration and development. Our U.S. branch is based in Englewood, Colorado, and focuses on high-capacity payload lunar landers designed to support future lunar missions. Our team is made up of innovators, problem-solvers, and visionaries committed to making space more accessible and fostering the next generation of space exploration. 
Let’s go to the Moon together! Our team is growing, and we are actively seeking talented individuals who share our passion for space. 

ispace-US is looking for a Mechanical Test Engineer to support testing activities for our lunar landers and relay satellites. You will own the planning, execution, and analysis of the testing used in the qualification and acceptance of our vehicles, subsystems, and in-house manufactured components.

This is a hands-on role on a small, highly technical team. You will work directly with Design Responsible Engineers, AI&T, and Systems Engineers to verify that mission and design requirements are met — from early development through qualification and acceptance testing of lunar lander and relay satellite hardware.

Key Responsibilities

Test Planning & Requirements

• Define test requirements, environmental conditions, instrumentation, and equipment needed to verify vehicle, subsystem, and component performance.
• Develop, review, and execute test plans, procedures, and verification documentation for flight hardware, subsystems, and integrated systems.
• Plan and coordinate test campaigns end to end, including facility requirements, ground support equipment (GSE), instrumentation, data acquisition, safety reviews, and logistics.

Test Execution

• Serve as Test Engineer and Certified Test Conductor (CTC), responsible for the safe development and execution of test procedures. CTC certification will be earned on the job — prior certification is not required.
• Execute tests alongside test technicians, fellow test engineers, and the design team.
• Own the test procedures for structural, propulsion, and other hardware on the vehicles.
• Design, develop, and oversee fabrication of tooling and test fixtures as needed.

Analysis & Reporting