Simulation Software Engineer

Barrios Technology is seeking a Simulation Software Engineer in Houston, TX (onsite) to build and maintain high-fidelity simulation software used for lunar surface operations. The role supports verification, validation, and testing across flight software, ground systems, mission operations, and crew training.

Responsibilities

• Develop and maintain simulation software for lunar surface operations, including both real-time and faster-than-real-time environments
• Design and implement high-fidelity models covering vehicle dynamics, environment behavior, sensors, and system interfaces
• Support hardware-in-the-loop (HWIL) simulation development, integration, and testing
• Perform verification and validation (V&V) of simulation models and enable fault detection, isolation, and recovery (FDIR) testing through fault modeling and scenario development
• Support flight software, ground systems, and mission operations using simulation and test environments
• Contribute to crew training and mission readiness by delivering realistic simulation scenarios
• Own the software lifecycle including design, implementation, testing, deployment, and operational support
• Contribute to Agile development cycles, including planning, integration, and verification activities
• Integrate within multidisciplinary engineering teams and interface with hardware developers and subsystem engineers
• Provide technical input during major milestones and program reviews
• Perform other duties as assigned

Requirements

• BS degree in Software Engineering, Computer Engineering, Technology, Physics, or Math from an accredited institution, plus two (2) years of related software development experience
• Experience with simulation frameworks and tools such as Trick, Unreal Engine, or similar simulation environments
• Experience with 6-degrees-of-freedom (6-DOF) simulation development
• Proficiency in object-oriented programming, such as C/C++
• Experience in one or more areas including spacecraft dynamics, thermal modeling, power systems, RF communications, sensor modeling (e.g., IMUs, star trackers, LIDAR), or GNC integration
• Experience with Git-based platforms (e.g., GitLab, GitHub) and development tools (e.g., JIRA)
• Experience working on cross-disciplinary engineering teams
• Strong communication, coordination, and presentation skills
• Proven ability to collaborate effectively with customers and stakeholders
• Must be a U.S. Citizen and successfully complete a U.S. government background investigation
• Applicant selected may be subject to government security investigation and must meet eligibility requirements for access to classified information

Physical and Work Environment Notes

• Work may involve sitting for extended periods
• May require lifting and carrying up to 25 lb
• Must have sufficient mobility to enter areas of test facilities where necessary
• Generally an office environment, with possible inside or outside work depending on task
• Standard office equipment (PC, telephone, fax, etc.)
• Regular attendance in accordance with the established work schedule is critical
• Ability to work outside normal schedule and adjust to meet peak periods and surge requirements when required
• Must be able to work in a team atmosphere and demonstrate professional behavior that enhances productivity and promotes teamwork
• Grooming and dress must be appropriate for the position and must not impose a safety risk or hazard to the employee or others
• May require some commuting and traveling to other installations as needed

Technology Stack

• Trick
• Unreal Engine
• C/C++
• GitLab
• GitHub
• JIRA
• 6-degrees-of-freedom (6-DOF)
• IMUs
• Star trackers
• LIDAR
• Docker
• Grafana
• High Level Architecture (HLA)
• Federation Object Models (FOMs)
• CMMI
• Agile

Preferred Qualifications

• Hardware/software integration experience
• Experience with High Level Architecture (HLA) and Federation Object Models (FOMs)
• Experience supporting spaceflight programs
• Familiarity with CMMI frameworks
• Experience with Agile development methodologies
• Experience with containerization technologies such as Docker
• Experience with data visualization tools such as Grafana
• Master's degree in a related field

Education and Experience

Minimum qualifications include a BS degree in Software Engineering, Computer Engineering, Technology, Physics, or Math from an accredited institution, along with two (2) years of related software development experience.

Location

Houston, TX (onsite).