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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Guidance, Navigation, & Control (GNC) Engineer - **Company:** K2 Space - **Location:** Los Angeles, CA, United States - **Salary:** $190,000.0 - $260,000.0 - **Contract:** Permanent contract - **Skills:** Algorithm Design, C++ (Programming Language), Python (Programming Language), MATLAB, Verification and Validation (Software), Julia - **Published:** September 25, 2026 - **Apply:** https://www.juju.com/job/15_020ce2445 ## About the Role * Experience with GNC actuator or sensor sizing, selection, and system design * Experience with implementing attitude control and/or estimation algorithms on spacecraft * Experience with verification and validation of GNC flight software in an integrated environment, leveraging 6-DOF simulation and HITL testing. * Experience with early-stage spacecraft conceptual design, i.e. "clean sheet" design work * Experience with Python, Julia, C/C++, or Matlab for algorithm development, implementation, and simulation Nice to Have * Experience with control algorithm development * Experience with reaction wheel, control moment gyroscope, or thruster sizing and algorithm implementation * Experience with navigation, specifically Extended Kalman Filters * Experience with trajectory analysis, modeling, and mission design ## Description The Role As a Principal GNC engineer, you will be a core driver of the overall spacecraft GNC architecture. You will execute detailed trade studies to find new and novel ways to implement the spacecraft's guidance, attitude control, and attitude and orbit estimation systems. You will anticipate company needs and stand-up infrastructure to support the core and future business. In the first 3 months, you will own and execute the Verification and Validation plan for the GNC stack, driving the system to flight readiness via a robust and thorough analysis of vehicle performance in both nominal and off nominal environments. This push for flight readiness will motivate thorough analysis, leading to updates to both the GNC stack and the K2 6-DOF simulation. The expectation is that all GNC team members commit code to the 6-DOF sim as well as owning a portion of the GNC flight software. In the first 6 months, you will support launch and on orbit operations of the first full demonstration of the K2 spacecraft bus - the Mega. In parallel, you will scope and support the block 2 upgrades of the GNC stack and 6-DOF sim, taking lessons learned from on orbit operations to increase the fidelity of the simulation and the vehicle performance of the GNC stack. In the first year, you will own the planning and development of future tooling to support GNC in defining vehicle level capabilities, especially for future missions. This includes mission design, precision pointing and controls analysis, constellation development, and 6-DOF simulation development. Responsibilities * Work with other engineering leads to set the direction and develop novel vehicle architecture * Develop novel algorithms for precise pointing of very large, flexible structures in earth orbit and beyond * Develop novel slewing algorithms of very large, flexible structures in earth orbit and beyond * Develop simulation and modeling tools to support vehicle and GNC trade studies. 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