GNC Engineer

Salary: $115,600 - 156,400 per year Requirements: We require a Bachelor of Science degree in Engineering, Engineering Technology, Computer Science, Data Science, Mathematics, Physics, Chemistry, or a directly related non-U.S. equivalent. We require 5 or more years of related professional experience, or an equivalent combination of technical education and experience. We require at least 3 years of experience in Guidance, Navigation, and Control engineering. We require experience or working knowledge of Vehicle Management Systems or other PID control design. We require experience using Matlab/Simulink or MatrixX/Systembuild to model and simulate complex aerospace systems. We require eligibility to meet U.S. export control compliance requirements as a U.S. Person, including U.S. Citizen, lawful permanent resident, refugee, or asylee. We prefer a Computer Science minor. We prefer the ability to obtain a U.S. Security Clearance, with an interim and/or final U.S. Secret Clearance required after start. We require successful completion of our Conflict of Interest assessment process. We require a Bachelors degree or equivalent as the minimum education standard. We do not sponsor employment-based visa status for this position. Responsibilities: We define GNC mission requirements and ensure strong requirement quality, traceability, and verification from the system level down to components. We perform design reviews, technical analyses, simulations, and component or system testing to deliver products that meet or exceed customer expectations. We build and refine a complex, nonlinear, six-degree-of-freedom simulation model using multidisciplinary data such as aerodynamics, mass properties, and propulsion. We develop, implement, integrate, and test vehicle models, controllers, and software using languages such as C, C++, FORTRAN, Python, and related tools. We design guidance and flight control laws using modern linear control methods and supporting engineering tools to achieve performance goals. We apply advanced nonlinear analysis to evaluate and improve control law performance. We validate models against test data to enhance simulation accuracy and fidelity. We create supplementary controllers, limiters, mode logic, redundancy management, and signal shaping to keep performance within flight envelope limits. We collaborate with flight simulation and Vehicle Management Systems software engineers to integrate control laws into the operational flight program. We define, analyze, and maintain air data sensor processing, CFD-based source error correction, and redundancy management. We take part in DO-178B/C software verification activities. We coordinate autonomous aircraft contingency management strategies across multidisciplinary teams and oversee software implementation. We support desktop, software, and real-time flight simulations. We assist with hardware-in-the-loop development and test execution. We contribute to flight test planning and execution. We work under general direction while delivering results across complex engineering efforts. Technologies: Fortran Hardware Support Matlab Python Security More: We are Boeing, and through Boeing Defense, Space & Security we are seeking an experienced Guidance Navigation & Control Engineer to join our MQ-25 Flight Engineering team in Hazelwood, Missouri. This role supports the design, development, integration, and flight test of an unmanned aircraft, with opportunities to help shape flight path definition, mission planning, inner loop flight controls, air data processing, subsystem control, and contingency management. We offer a collaborative, inclusive workplace with opportunities for professional growth, relocation support for eligible candidates, and a comprehensive total rewards package that includes competitive pay, health and retirement benefits, flexible spending and savings options, paid and unpaid time away, and a 401(k) with dollar-for-dollar company match up to 10% of eligible pay plus immediate vesting. The summary pay range for this role is $115,600 to $156,400, and the position is for first shift. last updated 34 week of 2026