Lunar GN&C Engineer — Real-Time Flight Software

Craig-Technologies; Huntsville (AL); On-site; USD 110,000 - 150,000; Full time

Job summary

Craig Technologies is seeking a GN&C Engineer to join our Huntsville team (also supporting Houston, TX or Merritt Island, FL). You will contribute to GN&C system design, testing, and real-time flight software for the Lunar Data Network spacecraft, focusing on navigation accuracy and fault-tolerant controls.

You will develop, test, and review high-reliability GN&C software in C/C++, work with deep-space sensors, and perform HWIL/SWIL integration.

Qualifications

• Strong interpersonal, communication, and technical documentation skills with an ability to communicate complex data clearly and effectively.
• High level critical thinking, mathematical reasoning, and a detail-oriented engineering mindset.
• Ability to work independently or adapt quickly as part of a multi-disciplinary, fast-paced space systems team.

Responsibilities

• Contribute to the design, architecture development, and verification testing of the GN&C system for the Lunar Data Network (LDN) spacecraft constellation.
• Develop, test, and peer-review high-reliability GN&C flight software and control algorithms written in C and C++.
• Support the selection, trade studies, procurement, and integration of specialized deep-space GN&C sensors and effector systems.
• Execute, maintain, and analyze 6-DOF simulations and Monte Carlo profiles to evaluate on-orbit performance and trajectory stability.
• Support navigation HWIL and SWIL sensor and effector integration and testing for the LDN satellite constellation.
• Assist in real-time flight software development, testing, and implementation of autonomous fault-tolerant recovery logic for navigation anomalies.
• Incorporate relative navigation, image processing, or feature detection techniques for lunar environments.
• Collaborate with cross-functional teams across software, hardware, and mission operations.
• Document software architectures, design trades, and simulation results in technical reports and presentations.
• Other duties as assigned.

Skills

Interpersonal skills

Technical documentation

Communication clarity

Critical thinking

Mathematical reasoning

Independence & adaptability

Education

Bachelor's or Master's in Aerospace or Electrical Engineering

Tools

JIRA

Git version control

Job description

Craig Technologies is seeking a GN&C Engineer to join our Huntsville team (also supporting Houston, TX or Merritt Island, FL). You will contribute to GN&C system design, testing, and real-time flight software for the Lunar Data Network spacecraft, focusing on navigation accuracy and fault-tolerant controls.

You will develop, test, and review high-reliability GN&C software in C/C++, work with deep-space sensors, and perform HWIL/SWIL integration.