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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Early Career NASA Space Reactor - 1 Freedom Flight Software Development Engineer - **Company:** CACI International Inc. - **Location:** Houston, TX, United States - **Experience:** Starter - **Salary:** $63,800.0 - $127,500.0 - **Contract:** Permanent contract - **Skills:** Testing (Software), C (Programming Language), Agile Methodology, Systems Engineering, JIRA, Automation of Tests, Unit Testing, Communications Protocols, Linux, Embedded Software, Ethernet, Python (Programming Language), Real-Time Operating Systems, Software Tools, RS-232, Software Engineering, Software Requirements Analysis, Systems Integration, USB, VxWorks, Gitlab, Git, Information Technology - **Published:** August 18, 2026 - **Apply:** https://dejobs.org/x/x/3E6F1112284A4B9E84AA299418B577E6/job/ ## About the Role This position requires a self-motivated engineer with strong technical depth, communication skills, problem-solving ability, and a collaborative, customer-focused mindset. The strongest candidates will be flexible, team-oriented, and able to explain complex technical ideas clearly and convincingly while sharing our passion for the nation's space program and the development of the next generation of space vehicles. This work is performed onsite at NASA/JSC in Houston, Texas, in a highly dynamic environment that is central to human spaceflight and space exploration., Required: * Must be a U.S. Citizen or Permanent Resident to facilitate access to USG facilities. * B.S. in Electrical, Mechanical, Aerospace, Software, Computer or Systems Engineering, Computer Science, or related disciplines. * Strong C programming skills and experience with Linux. * Experience with software unit testing. * Relevant intern experience if new graduate or one to two years professional software experience in relevant project. Greater experience is valued. * Must be flexible, open to new challenges in a dynamic environment, and possess strong technical expertise combined with strong verbal and written communication skills. * Requires the ability to manage multiple priorities with little supervision. * Must be a highly responsible, team-oriented individual with strong work ethic. Desired: * M.S. in Computer Science, Software Engineering, Electrical, Mechanical, Aerospace, Computer or Systems Engineering, or related discipline. * Experience in human-rated space vehicles, e.g., Space Shuttle, Space Station, Orion, Commercial Crew, Gateway, and in specific vehicle software domains (e.g., C&T, C&DH, GN&C). * Experience in software development for safety-critical software. Experience can be for aerospace vehicles or in other industries, e.g., oil and gas. * Experience in NASA Core Flight Software (CFS). * Python development skills. * Experience in the entire software life cycle. * Experience developing embedded software for Real-time Operating Systems, preferably VxWorks. * Experience in bus communication protocols (e.g., 1553, RS-422, RS-232, USB, Ethernet). * Experience in software and systems integration. * Experience in automated testing. * Experience in verification testing. * Experience using GitLab and the Git version control system. * Experience using Jira. * Experience working in an Agile software development environment. ## Description * Design and develop SR-1 flight software and supporting software tools. * Develop and maintain software using the NASA Core Flight Software (cFS) framework. * Perform systems engineering in support of software requirements, interface definitions, and performance analysis. * Perform software integration, test, and verification. * Integrate and test software/hardware in avionics test bed and flight certification environments. * Collaborate with engineering teams and contractors across multiple NASA programs and projects. * Ensure adherence to JSC standard software process practices. ## Related Videos - [What I learned as a developer from accidents in space](https://www.wearedevelopers.com/videos/642-what-i-learned-as-a-developer-from-accidents-in-space) - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Prototyping with Hardware and the Web](https://www.wearedevelopers.com/videos/651-prototyping-with-hardware-and-the-web) - [From Space to Software: Reliability Lessons 40 Years After Challenger](https://www.wearedevelopers.com/videos/100283-from-space-to-software-reliability-lessons-40-years-after-challenger) - [Collaboration Quantified: Lessons from Open Source Developer Networks](https://www.wearedevelopers.com/videos/1422-collaboration-quantified-lessons-from-open-source-developer-networks) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Is Software Engineering Hard?](https://www.wearedevelopers.com/magazine/448-is-software-engineering-hard) - [Résumé-Driven Development: How IT trends affect the job market for software developers](https://www.wearedevelopers.com/magazine/59-resume-driven-development-how-it-trends-affect-the-job-market-for-software-developers) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs)