Sr. GNC Engineer

United States·Long BeachFull-timesenior

OtherGnc Engineer

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Overview

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Long Wall Company was created in 2024 to accelerate missile defense technology for the U.S. and our allies. Building on the RS1 and GS0 launch systems, Long Wall develops containerized, mass-producible missile defense systems and offers rapid, low-cost flight testing. We believe that the future of global security and stability require defensive technology that is lower cost, higher performing, better tested, and more broadly distributed than is possible today. Join us.

What we look for

Mission-Driven Problem Solvers. The aerospace frontier demands ingenuity. We want Team members who approach challenges with curiosity, embrace failure as a learning opportunity, and stay focused on delivering the best solution for the mission.

Total Ownership. We seek staff and engineers who take full responsibility for contributing to and delivering flight-ready work while recognizing that no one succeeds alone. The best engineers, corporate professionals, and technicians make their teammates better. Knowing that complementary skills create force multiplication and drive mission success.

As a Senior GNC Engineer, you will help design and implement robust control solutions for both endo- and exo-atmospheric flight systems. You’ll work closely with a cross-functional team of mechanical, fluid, and electrical engineers to develop innovative, deployable launch platforms that support Long Wall’s rapid-deployment goals.

This role offers the opportunity to contribute across the full development lifecycle—from modeling and simulation to integration and flight testing. Your work will directly impact every mission and flight, playing a critical part in shaping the future of responsive missile defense systems.

Develop GNC algorithms, models and software

Develop, analyze and review data to validate and verify system meets specifications and design requirements

Perform modeling and simulation tasks to validate system design and performance

Perform GNC system integration, checkout and troubleshooting of anomalies

Perform and direct test planning, development of test procedures and test execution

Develop sensor and support Avionics systems requirements

Support critical sensor (e.g. IMU) system engineering, integration and test

Support critical controller (e.g. Thrust Vector Control Actuators, Throttle Valves) system engineering, integration and test

Mission specific analysis for customer launch and in support of business development

Perform "Hardware in the Loop" (HITL) testing/simulation prior to launch on both testbed and integrated launch vehicle

B.S. degree from an accredited university

6+ years of experience in the development of aircraft, missile, spacecraft, or similar vehicle GNC system

Hands-on experience developing GNC systems for aircraft, missiles, spacecraft, or similar vehicles

Proficiency in modeling, simulation, and analysis tools (e.g., MATLAB/Simulink)

Experience developing and validating GNC algorithms, models, and flight software

Strong understanding of control theory, vehicle dynamics, and trajectory analysis

Ability to plan and execute test campaigns, including integration, checkout, and troubleshooting

M.S. or PhD degree from an accredited university

Demonstrated skills in modeling, simulation, and analysis software such as MATLAB/Simulink and experience in at least one or more high-level programming languages (e.g., C, C++, or FORTRAN)

Experience developing terminal engagement algorithms

Experience with hypersonic flight regime control systems

Proficiency in trajectory planning/design and optimization algorithms or tools (e.g., POST2)

Day of launch or on-orbit systems support, including launch limits and loads/GNC capabilities evaluation

Demonstrated ability to solve complex and difficult technical problems with simple, robust solutions

Ability to sit or stand for extended periods of time

Ability to use a computer to complete assignments

Ability to communicate with individuals and groups in person, by phone and telepresence

Ability to pick up to 50lbs

While performing the duties of this job, the employee will typically work in an office environment

Ability to travel up to 25% of the time

ITAR Requirement

This position requires access to information protected under US export control laws, including the International Traffic in Arms Regulations and/or the Export Administration Regulations. As such, US person status (including US citizens, U.S. permanent residents, individuals granted U.S. asylum status, or individuals admitted in U.S. refugee status) is a required qualification for this position.

Equal Opportunity Employer

We are an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, protected veteran status, disability, genetics, or citizenship status (when otherwise legally authorized to work and access export-controlled data) and will not be discriminated against on the basis of such characteristics or any other status protected by the laws or regulations in the locations where we operate. We encourage applicants of all ages.