GN&C Automation Engineer

Relative Dynamics

• $100K — $120K *
Aerospace & Defense
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • BS or MS in Aerospace Engineering or related field with 3-7 years of relevant experience
  • Experience developing spacecraft automation software
  • Familiarity with GN&C hardware including IMU, Star Trackers, GPS, LIDAR, and/or OpNav systems
  • Proficiency in C, C++, and/or Python
  • Experience with SWIL and/or HWIL testing and integration
  • Strong interpersonal, communication, and documentation skills
  • Foundational knowledge of spacecraft dynamics and orbital mechanics

Responsibilities

  • Contribute to the design, development, and testing of the GNC system for a lunar spacecraft
  • Support real-time GNC flight software development and performance analysis
  • Collaborate closely with cross-functional teams across software and hardware systems
  • Develop, test, and peer review GNC flight software in C and C++
  • Execute and analyze 6-DOF simulations to evaluate expected on-orbit performance
  • Support navigation HWIL sensor and effector integration and testing
  • Assist in real-time flight software development for a lunar satellite mission

Benefits

  • Career growth opportunities with mobility and continuous learning
  • Comprehensive benefits including medical, dental, vision, and life/disability coverage
  • 401(k) with match and PTO
  • Company holidays and community engagement opportunities
  • Supportive team environment focused on meaningful, mission-driven work
Full Job Description
Relative Dynamics is a subcontractor supporting a Commercial Space contract. In this role, you will be employed by Relative Dynamics and assigned to work on projects in support of a Commercial Space project.

Relative Dynamics is seeking a GN&C Automation Engineer to support the lunar mission portfolio for a Commercial Space customer. This is a hybrid role requiring regular on-site work in either Houston, TX or Glen Burnie, MD. This role is not eligible for remote work.

What You'll Get to Do:
  • Contribute to the design, development, and testing of the GNC system for a lunar spacecraft, which will provide navigation and communications services to lunar users.
  • Support real-time GNC flight software development, flight control automation, HWIL sensor and effector integration, performance analysis, and testing.
  • Collaborate closely with cross-functional teams across software and hardware systems
  • Develop, test, and peer review GNC flight software in C and C++
  • Support the selection, assessment, and integration of GNC sensors and effector systems
  • Execute and analyze 6-DOF simulations to evaluate expected on-orbit performance
  • Support navigation HWIL sensor and effector integration and testing for a lunar satellite mission
  • Assist in real-time flight software development, integration, and testing for a lunar satellite mission

What You'll Need:

Required Skills & Experience
  • BS or MS in Aerospace Engineering or related field with 3• 7 years of relevant experience
  • Experience developing spacecraft automation software
  • Experience with real-time software development
  • Familiarity with GN&C hardware including IMU, Star Trackers, GPS, LIDAR, and/or OpNav systems
  • Experience with SWIL and/or HWIL testing and integration
  • Exposure to relative navigation, image processing, or feature detection techniques
  • Experience supporting flight control analysis and evaluating vehicle performance and stability
  • Proficiency in C, C++, and/or Python
  • Experience with GN&C sensor testing, planning, or modeling
  • Experience working in a multi-disciplinary team environment
  • Foundational knowledge of spacecraft dynamics and orbital mechanics
  • Experience with JIRA and Agile development processes
  • Familiarity with VxWorks or other real-time operating systems is a plus
  • Experience with Git version control preferred
  • Strong interpersonal, communication, and documentation skills
  • Demonstrated ability to communicate technical concepts clearly and effectively

Preferred Skills & Experience
  • Hands-on experience with navigation sensor hardware, Kalman filtering, LIDAR, real-time software, Monte Carlo analysis, and C/C++ or Python
  • Experience contributing to GNC development efforts on spacecraft or satellite programs
  • Prior experience working with or supporting satellite systems

Who You Are:
  • Effective communicator who can translate complex technical concepts across multidisciplinary teams and stakeholders
  • Customer-focused, with the ability to support government and agency partners while maintaining high service standards
  • Dependable and accountable, consistently meeting commitments in regulated and deadline-driven environments
  • Productive and results-oriented, balancing quality, efficiency, and innovation across projects
  • Collaborative team player who contributes to shared goals and overall organizational success

What You'll Enjoy:
  • Grow your career with mobility, continuous learning, tuition reimbursement, and a personal development program in a culture that rewards innovation and impact
  • Join a high-performing team that works together on meaningful, mission-driven work and support each other.
  • Enjoy comprehensive benefits including medical, dental, vision, life/disability coverage, 401(k) with match, PTO, company holidays, and community engagement opportunities

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