Flight Systems Futures - GN&C Engineer 3/4

About this role

RELOCATION ASSISTANCE: Relocation assistance may be available

CLEARANCE REQUIRED FOR START: Yes

CLEARANCE TYPE: Secret

TRAVEL: Yes, 10% of the Time Description

At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work — and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history.

Join Northrop Grumman on our continued mission to push the boundaries of possible across land, sea, air, space, and cyberspace. Enjoy a culture where your voice is valued and start contributing to our team of passionate professionals providing real-life solutions to our world’s biggest challenges. We take pride in creating purposeful work and allowing our employees to grow and achieve their goals every day by Defining Possible. With our competitive pay and comprehensive benefits, we have the right opportunities to fit your life and launch your career today.

Northrop Grumman Defense Systems is seeking Principal / Sr. Principal GN&C Engineer to support activities including flight simulator development, GN&C algorithm development and implementation, and "test as you fly" with rigorous model and requirements verification and validation. This position will be in Roy, Utah supporting Flight Systems Futures.

What you will get to do: The selected engineer will develop and mature guidance, navigation, and control (GN&C) algorithms, autopilots, and high-fidelity 6-DOF flight simulations for complex aerospace systems. This includes strap-down inertial navigation design, GPS integration, Kalman-filter–based navigation solutions, and the tuning of control laws using classical and modern techniques (PID, gain scheduling, optimal/robust control). The engineer will enhance existing GN&C and navigation analysis tools, perform covariance and CEP accuracy assessments, and contribute to emerging mission capabilities across advanced programs.

The ideal candidate is a collaborative team player and strong independent contributor who demonstrates ownership of tasks, initiative, and sound technical judgment. They show advanced problem-solving skills and excellent written and verbal communication, coupled with strong interpersonal and organizational capabilities, a proactive mindset, and a meticulous, detail-oriented approach to their work.

Primary responsibilities include, but are not limited to: • Collaborate with a team of GN&C engineers in an Agile environment to meet critical milestones • Develop, verify, and validate GN&C algorithms and 6-DOF flight simulations in a multi-disciplinary team environment • Design and implement strap-down inertial navigation systems integrated with GPS and Kalman filters • Perform trajectory assessment, flight analyses, covariance analysis, and CEP/accuracy evaluations • Apply trajectory optimization and nonlinear control techniques to improve missile trajectory performance. • Enhance and maintain GN&C and navigation analysis tools for new mission requirements • Participate in engineering review boards, technical interchange meetings, and critical milestone reviews • Model key subsystems such as IMUs, control actuators, and propulsion / thrust-vector control • Manage version control, continuous integration, and automated testing of GN&C software toolchains (Git, CI/CD).     • Work with the GN&C Flight Software Team to automatically generate code from high-level specifications or models, ensuring consistency and reducing manual errors • Use C++ and MATLAB with object-oriented design principles to implement and analyze GN&C software • Collaborate closely with GN&C flight software teams to transition algorithms into flight-worthy implementations • This position is contingent on contract award.

This position may be filled as a Principal (level 3) or Sr. Principal (level 4) Systems Engineer.

Basic Qualifications:   

Principal GN&C Engineer: • Bachelor's degree in STEM and 5 years of experience, 3 years of experience with master’s degree, 0 years of experience with PhD. • Must have an active U.S. Government DoD Secret security clearance at time of application, current and within scope, with an investigation date within the last 6 years • Must have the ability to obtain Top Secret Clearance and Special Access Program (SAP) within a reasonable period as determined by the business needs of the company. • 1 year of experience in state estimation techniques: Kalman filters (KF, EKF, UKF), particle filters, and smoothing algorithms. ( t03: 1 yr | t04: 2 yr) • 1 year of experience with high fidelity vehicle modeling (6 DOF dynamics, aerodynamic heating, propulsion) and simulation environments (MATLAB/Simulink, Python, C/C++)  ( t03: 1 yr | t04: 3 yr) • 1 year of experience with linear stability analysis to determine control system stability margins  ( t03: 1 yr | t04: 3 yr) • 2 years of experience with MATLAB/Simulink for modeling, simulation, and code generation  ( t03: 2 yr | t04: 4 yr) • 1 year of experience with Monte Carlo, robustness, and performance analysis tools  ( t03: 1 yr | t04: 3 yr) • Participation in at least one flight test program (e.g., sounding rocket, missile, UAV)

Sr. Principal GN&C Engineer: • Bachelor's degree in STEM and 8 years of experience, 6 years of experience with master’s degree, 4 years of experience with PhD.

• Must have an active U.S. Government DoD Secret security clearance at time of application, current and

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