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# Principal Systems Engineer

- **Company:** RTX
- **Location:** Tucson, AZ, United States
- **Experience:** Expert
- **Salary:** $107,500.0 - $204,500.0
- **Contract:** Permanent contract
- **Skills:** C (Programming Language), Computer-Aided Design, Algorithm Design, Systems Engineering, C++ (Programming Language), Software Code Optimization, Global Positioning Systems (GPS), Python (Programming Language), MATLAB, Monte Carlo Methods, Object-Oriented Software Development, Signal Processing, Verification and Validation (Software)
- **Published:** November 4, 2026
- **Apply:** https://find.jobs/jobs-near-me/apply/ats-redirect/?id=3051988724-2

## About the Role

Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date, * Typically requires a Bachelor's degree in Engineering, Science, Physics, Mathematics, or a related STEM degree and a minimum of 8 years prior relevant experience

 * GNC, Signal Processing, and/or Modeling / Simulation experience
 * Engineering experience in missile system applications to include at least two of the following:
 + Digital and/or modern control systems
 + Dynamics
 + Kalman filter design
 + Monte Carlo analysis
 + Development and/or simulation of physical systems
 + Signal processing
 + Verification and validation
 + System-level performance assessments
 + GPS/INS navigation systems, sensors, and algorithms
 + Assured Positioning, Navigation, and Timing (APNT) systems, sensors, and algorithms for navigation in GPS-degraded environments

 * Experience with MATLAB, Python, C, C++, and/or Object-Oriented design
 * Experience with GNC and/or Signal Processing algorithms within a simulation or physical environment
 * Experience managing or leading others in a technical and/or functional capacity within an engineering environment
 * Ability to obtain an Interim Secret U.S. government issued Security Clearance is required prior to start date with the ability to obtain special program access after start. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance., * Advanced Degree in Engineering, Science, Physics, Mathematics, or a related STEM degree
 * 8 or more years of GNC, Signal Processing, and/or Modeling / Simulation experience
 * Ability to communicate effectively with executive leadership and customers regarding matters of significant importance
 * Ability to balance multiple concurrent priorities with overlapping deadline in an Agile environment
 * Subject Matter Expert in at least one of the following areas: RF algorithm design, GNC algorithm design, autopilot algorithm design or Software in Simulation
 * Experience with and demonstrable achievement in systems engineering principals with regards to product development

## Description

* Definition and execution of system level performance studies and analyses to inform the development and integration of new capabilities, refinement of existing capability, or to address obsolescence
 * Work within an agile framework to lead development of backlogs, plans, and metrics
 * Provide experience and guidance to help the program train new engineers and execute efficiently and effectively
 * Support missile performance analysis including model development, system optimization, and Monte Carlo assessments with expected system disturbances.