Develop and maintain high-reliability embedded flight software for lunar spacecraft. Responsibilities include C development within NASA’s cFS framework, real-time systems, telemetry and command processing, hardware integration, embedded Linux, CI/CD pipelines, testing, documentation, and mission operations support. The role also involves collaborating with international teams and vendors while supporting flight-critical software throughout its lifecycle.
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.
We are seeking a Flight Software Engineer to join our mission operations team in a role focused on developing high reliability embedded software systems for spacecraft flight operations. This position is central to ensuring mission success through robust flight software development, real-time system implementation, and hardware interface integration.
You will be an integral member of the flight software team working across embedded software development, telemetry and command systems, and CI/CD pipeline implementation—while contributing to flight-critical software applications that enable safe and efficient lunar mission execution.
Key Responsibilities
- End to end ownership of FSW subsystem – from requirements through verification and real time operations
- Architect, develop and maintain production-quality C code for embedded spacecraft flight software applications within the NASA cFS framework, implementing rigorous unit-level testing to ensure reliability of flight-critical systems.
- Design and implement real-time software systems for spacecraft operations, including command processing, telemetry generation, and hardware interface integration in memory-constrained environments.
- Work with embedded Linux systems (PREEMPT-RT), managing device trees, interrupt handling, scheduling, and system initialization to support high-reliability spacecraft operations.
- Own CI/CD pipeline development and maintenance, ensuring continuous integration and deployment of flight software with generated verification products.
- Collaborate with international engineering teams in Japan, Luxembourg and the U.S.
- Develop and maintain FSW operations procedures, technical documentation, and interface control documents to ensure operational readiness and mission assurance throughout the software development lifecycle.
- Support spacecraft operations as needed, monitoring telemetry, analyzing system performance, and providing flight software expertise during mission-critical phases.
- Work with vendors and internal stakeholders, clearly communicating technical requirements, progress and issues to both technical and non-technical audiences
Basic Qualifications
- 5+ years of working experience
- Proficiency in C for embedded applications with experience in high-reliability embedded software systems; direct experience with spacecraft flight software is ideal
- Experience with Python or similar scripting languages
- Proficiency with Git version control
- Working knowledge of Linux environments
- Experience with real-time system development and hardware interface integration
- Knowledge of software application design and implementation lifecycle, including initialization, command processing, telemetry generation, and unit-level testing
- Understanding of CI/CD pipelines and generated verification products
What Will Make You Stand Out
- Experience with embedded Linux systems including PREEMPT-RT Linux, scheduling, device tree configuration, and interrupt management
- Experience with Yocto and/or U-Boot development for embedded system setup
- Experience with Docker containerization
- Familiarity with NASA's Core Flight System (cFS) framework
- Familiarity with CCSDS protocols (TC/TM, CFDP, Space Packet Protocol) for space systems
- Experience with RTOS concepts including tasking, scheduling, and resource management
- Experience in telemetry and command management system design and implementation
- Experience with image processing protocols
- Experience working with memory-constrained environments and serial communication protocols
At ispace, we believe that diverse perspectives drive innovation. We welcome applicants from all backgrounds and experiences, even if you don’t meet every listed requirement. If you’re passionate about our mission and think you can contribute, we encourage you to apply. Your unique skills and experiences may be exactly what we need to grow and succeed together.
To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR .here.
ispace is an Equal Opportunity Employer; employment with ispace is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.
All applicants who are offered employment with ispace US will be subject to a background investigation. Offers of employment are contingent on the successful completion of a background investigation conducted in accordance with Company policies and all applicable laws.
ispace Technologies, US, Inc. is a drug-free workplace.
ispace Technologies, US, Inc. participates in the E-Verify program.
Similar Jobs
Aerospace • Hardware • Information Technology • Robotics • Defense • Utilities
Design, develop, test, and troubleshoot software for space systems. Write maintainable code, use Git for version control, participate in code reviews, document software processes, collaborate with senior engineers, and stay current with software and space technology advancements.
Top Skills:
AgileC++Embedded SystemsGitKanbanPythonScrum
Aerospace • Artificial Intelligence • Hardware • Machine Learning • Software • Defense • Manufacturing
Develop and test low-level flight software for spacecraft computers, integrate GNC algorithms, maintain command and telemetry databases, support spacecraft command sequencing, build subsystem simulators, and create device drivers and communications libraries. The role requires embedded RTOS, safety-critical systems, hardware protocols, C/C++, Python, and eligibility for TS/SCI clearance. This is an onsite position near Denver or Long Beach.
Top Skills:
Azure RtosCC++CanContinuous DeliveryContinuous IntegrationEmbedded LinuxEthernetHitlI2CMicrocontrollersOscilloscopesProtocol AnalyzersPythonRs422Rs485RtlinuxSitlSpiTcp/IpUdp
Aerospace • Artificial Intelligence • Hardware • Machine Learning • Software • Defense • Manufacturing
Develop and test flight software for spacecraft computers, integrate GNC algorithms, maintain command telemetry databases, and build simulators, device drivers, and communications libraries. The role includes spacecraft command scripting, ground-software collaboration, code reviews, and flight-software architecture work. Candidates need low-level firmware and safety-critical systems experience, embedded RTOS knowledge, C/C++ proficiency, and familiarity with hardware and networking protocols. This is an onsite position near Denver or Long Beach and requires the ability to maintain or obtain TS/SCI clearance.
Top Skills:
Azure RtosCC++CanCommand Telemetry DatabasesCommunications ProtocolsContinuous DeliveryContinuous IntegrationDevice DriversEmbedded LinuxEthernetFlight SoftwareGncHitlI2CMicrocontrollersOscilloscopesProtocol AnalyzersPythonRs422Rs485RtlinuxRustSitlSpiTcp/IpUdpVersion ControlZig
What you need to know about the Colorado Tech Scene
With a business-friendly climate and research universities like CU Boulder and Colorado State, Colorado has made a name for itself as a startup ecosystem. The state boasts a skilled workforce and high quality of life thanks to its affordable housing, vibrant cultural scene and unparalleled opportunities for outdoor recreation. Colorado is also home to the National Renewable Energy Laboratory, helping cement its status as a hub for renewable energy innovation.
Key Facts About Colorado Tech
- Number of Tech Workers: 260,000; 8.5% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Lockheed Martin, Century Link, Comcast, BAE Systems, Level 3
- Key Industries: Software, artificial intelligence, aerospace, e-commerce, fintech, healthtech
- Funding Landscape: $4.9 billion in VC funding in 2024 (Pitchbook)
- Notable Investors: Access Venture Partners, Ridgeline Ventures, Techstars, Blackhorn Ventures
- Research Centers and Universities: Colorado School of Mines, University of Colorado Boulder, University of Denver, Colorado State University, Mesa Laboratory, Space Science Institute, National Center for Atmospheric Research, National Renewable Energy Laboratory, Gottlieb Institute
