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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer (Human Landing System) - **Company:** Cimarron Software, Inc. - **Location:** Houston, TX, United States - **Experience:** Experienced - **Salary:** $115,000.0 - $200,000.0 - **Contract:** Permanent contract - **Skills:** Agile Methodology, Systems Engineering, Confluence, JIRA, Software Debugging, High-Level Architecture, MATLAB, Perforce, Simulation Software, Software Engineering, Systems Integration, Linux Development, Atlassian Tools - **Published:** June 14, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=cd52a775e5aa5c40 ## About the Role Do you have a valid Driver's License license?, Do you have experience in System dynamics?, Do you have a Bachelor's degree?, * Due to facility security requirements, only U.S. citizens are eligible for consideration at this time. * This position requires access to federal facilities. Candidates must possess a valid, unexpired Real ID-compliant driver's license or state-issued identification card at the time of hire. If you are unsure whether your ID is Real ID-compliant, please check for the star symbol in the upper portion of your driver's license or state ID. * Ability to complete a pre-employment background check and drug screening, which will include but is not limited to testing for marijuana use. * 5 or more years of general, full-time work experience. * May be reduced with the completion of advanced education. * 3 or more years of directly related experience in simulation software development or spacecraft systems engineering. * Proficiency in C++ software development. * Proficiency in Python software development. * Experience with the full software development lifecycle. * Experience with real-time 6 DoF simulation. * Extensive experience in debugging and implementing best software engineering practices in large-scale systems. * Extensive experience with Linux development environment. * Experience with Perforce. * Experience with aerospace engineering concepts (ex., fluid mechanics, orbital dynamics, etc). * Experience in simulation and modeling for complex systems. * Experience with Agile software development methodologies. * Experience with Atlassian tools (Jira, Confluence, or equivalent). * Strong verbal and written communication skills with the ability to convey complex technical concepts clearly. * Bachelor's degree in a related technical field. Desired Skills, Experience, and Education: * Experience with MATLAB/Simulink. * Experience with HLA (High Level Architecture) simulation frameworks and federate development. * Familiarity with spacecraft lab emulators and integration environments. * Knowledge of ECLSS simulation or spacecraft life support systems modeling. * Experience with SpaceWire interfaces or spacecraft I/O systems. * Familiarity with OrionSim or other Orion simulation environments. * Experience supporting hardware/software integration in a lab setting. * Prior work supporting NASA human spaceflight programs or HLS development. ## Description * Perform systems engineering and SIM software development for Orion Docked Operations scope supporting HLS Interface and Functional checkout and HLS Command/Telemetry Data Path Checkout. * Expand Orion's Target Vehicle Actuator Controller (TVAC) model to support Comm capabilities, including canned/faultable telemetry and EWCA alerts. * Develop Orion Dynamics simulation models, including creation of an Orion vehicle HLA Federate using FOD's TSFOM interface and implementing timesync updates for incoming HLS Federate states. * Develop FOM manager interfaces and integrate summing of Force faults and docking contact modeling in support of ITL joint testing and beyond. * Develop Orion ECLSS simulation models covering air exchange, consumption, and crew movement scenarios. * Configure and validate OrionHLS/Gateway RF and RUC traffic routing through Sim I/O Pump SpaceWire interfaces and NIC mappings to CCM and Orion switches. * Provide lab and integration support, including preparation for and execution of SpaceX emulator integration in the ITL and trajectory updates. * Deliver monthly status reports on all assigned tasks. ## Related Videos - [Leveraging Large Language Models for Legacy Code Translation: Challenges and Solutions](https://www.wearedevelopers.com/videos/1157-leveraging-large-language-models-for-legacy-code-translation-challenges-and-solutions) - [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) - [Code to Road in < 12 hours](https://www.wearedevelopers.com/videos/1082-code-to-road-in-12-hours) - [Building a hypercar from scratch](https://www.wearedevelopers.com/videos/607-building-a-hypercar-from-scratch) - [Software stack under and over the hood of the fastest accelerating car in the world](https://www.wearedevelopers.com/videos/221-software-stack-under-and-over-the-hood-of-the-fastest-accelerating-car-in-the-world) - [Collaboration Quantified: Lessons from Open Source Developer Networks](https://www.wearedevelopers.com/videos/1422-collaboration-quantified-lessons-from-open-source-developer-networks) ## Related Articles - [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) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Why Attend a Developer Event in 2026?](https://www.wearedevelopers.com/magazine/688-why-attend-a-developer-event-in-2026) - [Quick guide: How to write a Software Developer CV](https://www.wearedevelopers.com/magazine/37-quick-guide-how-to-write-a-software-developer-cv)