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 seeking a talented Flight Software Engineer to join our mission of expanding humanity's presence beyond Earth. As a key member of our engineering team, you will develop and maintain the critical software systems that power our lunar landers, enabling safe and reliable operations in one of the most challenging environments imaginable.
Key Responsibilities
Design, develop, and implement spacecraft embedded C/C++ flight-software, ground test software, and simulation software.Develop and integrate software/hardware components into a fully functional systemDevelop, select, tailor, and deploy software processes, tools and metricsPerform unit and system test design and implementation using simulations, test and flight system hardwareEstablishing software development design philosophy, practices, and coding standards.Leading code reviews.Design and implement fault detection and mitigation in softwareDevelop software verification plans and test procedures for hardware-in-the-loop test campaigns
Basic Qualifications
Bachelor’s degree in computer science or related technical field. We will consider a combination of experience and education. 5+ years relevant experience in software developmentProven experience with software development for embedded systemsExperience with software development processes including source control, bug tracking, and design documentationCompetent in the Linux/Unix environment with experience scripting and automating complex proceduresFamiliarity with software architecture for space applicationsFamiliarity with DevOps tools such as AWS Gov Cloud, Github, GitLab, JIRA, and/or Confluence
What Makes You Stand Out
Demonstrated professional experience in launch vehicle and/or spacecraft software systemsHighly proficient in C/C++ (C99/C++ 11+)Experience with NASA’s cFS a plusAbility to solve complex problems in a fast-paced collaborative interdisciplinary team environmentUnderstanding of GNC, Simulation, and LinuxExperience with Ground/Test software Experience with a large, shared codebase and continuous integration and deployment workflows and tooling like GitLab CI and DockerSoftware quality practices associated with organizations like NASA, FAA, etc.Strong skills in debugging, performance optimization and unit testingCapable of working both independently and in a team environmentStrong coordination, organization and communication abilities 
