Principal / Sr. Principal Mechanical Engineer – Inertial Sensors & Precision Instrumentation
Northrop Grumman · Posted Nov 13, 2026
- Woodland Hills, California, United States
- On-site
- Full-time · Principal
- $104K–$194K per year
- 5+ years
Design, develop, integrate, and qualify precision mechanical and electromechanical hardware for advanced PNT applications, including resilient navigation in GPS-denied or contested environments, spanning inertial sensors, gyroscopes, accelerometers, IMUs, and INS.
Compensation
Primary Level Salary Range: $103,600.00 - $155,400.00 Secondary Level Salary Range: $129,300.00 - $193,900.00
Responsibilities
- Design precision mechanical sensing elements, components, assemblies, and packaging solutions for inertial sensors, electromechanical instrumentation, and integrated measurement systems.
- Deliver detailed mechanical designs from 3D CAD modeling, geometric dimensioning and tolerancing (GD&T), tolerance analysis, and material selection through the preparation, review, controlled release, and revision management of engineering drawings and assembly documentation.
- Develop and evaluate structural, thermal, dynamic, and multiphysics models using analytical methods, finite element modeling and analysis (FEM/FEA), or other simulation techniques to assess modal behavior, shock and vibration response, and thermal-mechanical effects.
- Investigate the influence of mechanical characteristics on instrument performance, including structural resonance, alignment, dimensional stability, mechanical coupling, thermal sensitivity, and environmental response.
- Design and evaluate precision mechanical interfaces, mounting structures, vibration isolation systems, tooling, fixtures, and electromechanical assemblies.