GNC Engineer - Onsite Seal Beach, TS/SCI Clearance

Zachary Piper Solutions; Seal Beach (CA); On-site; USD 120,000 - 160,000; Full time

Job summary

Zachary Piper Solutions seeks an experienced GNC Engineer to support a leading aerospace and defense program delivering space, hypersonic, and autonomous vehicle capabilities for critical U.S. government missions.

You will design, simulate, and validate GN&C algorithms, develop high-fidelity 6-DOF vehicle dynamics, and integrate flight software using MATLAB/Simulink and C/C++. This onsite role in Seal Beach requires TS/SCI clearance and a strong hands-on background.

Qualifications

• 5+ years of relevant engineering experience supporting aircraft, spacecraft, missiles, autonomous platforms, hypersonic vehicles, or similar aerospace systems.
• Bachelor's degree in a relevant STEM discipline.
• Hands-on GN&C algorithm development beyond generic aerospace engineering.
• MATLAB + Simulink expertise.
• 6-DOF modeling/simulation development for high-fidelity vehicle dynamics.
• Flight mechanics and control systems knowledge for aerospace vehicles.
• Software development in C/C++, Python, or C#.
• Aerospace vehicle systems experience across related domains.
• Active Tier 5 TS/SCI clearance and onsite work in Seal Beach, CA.

Responsibilities

• Design, develop, and validate GN&C algorithms for spacecraft, hypersonic, and aerospace vehicles.
• Develop high-fidelity 6-DOF simulations for vehicle dynamics and analysis.
• Integrate GN&C flight software using MATLAB/Simulink and C/C++.
• Apply trajectory design, guidance, navigation, and control to meet performance goals.
• Develop atmospheric/re-entry flight controls, navigation, autonomy, and guided laws.
• Support system integration, verification, flight testing, and troubleshooting.
• Create simulation artifacts, CONOPS, and test procedures for prototype-to-flight work.
• Collaborate with systems, software, avionics, and test teams throughout development.

Skills

GN&C algorithm development

State estimation / Kalman filtering

C/C++

Python

6-DOF modeling/simulation

Flight mechanics

Active TS/SCI clearance

Aerospace systems experience

Autonomy / hypersonic systems

Education

Bachelor's degree in STEM

Tools

MATLAB/Simulink

Job description

Zachary Piper Solutions seeks an experienced GNC Engineer to support a leading aerospace and defense program delivering space, hypersonic, and autonomous vehicle capabilities for critical U.S. government missions.

You will design, simulate, and validate GN&C algorithms, develop high-fidelity 6-DOF vehicle dynamics, and integrate flight software using MATLAB/Simulink and C/C++. This onsite role in Seal Beach requires TS/SCI clearance and a strong hands-on background.