Principal Motor Controls Engineer

Position Overview

Location:

Tucson, AZ (1151 E Hermans Rd, Building M02)

Type:
Onsite. U.S. citizenship required and an active Secret security clearance must be maintained.

Salary Range: 107,500 – 204,500 USD.

• Design, analyze, simulate, test, and document power conversion circuitry for motor control systems.
• Develop board‑mounted power electronics, 3‑phase inverter design, sensor interfacing, and controller circuits.
• Lead circuit card development through requirements, design, integration testing, and schedule management.
• Guide ECAD drafters in layout, routing, and layer stack‑up.
• Participate as SME on Controls Hardware Electronics.

• Degree in STEM; minimum 8 years of relevant experience or advanced degree + 5 years of relevant experience.
• Design, analysis, test, or simulation experience with motor types (Brushed, BLDC, PMSM) preferred.
• Experience with tools such as MATLAB, MathCAD, Mathematica.
• Analog electronics design experience (FETs/BJTs, op‑amps, band‑pass filters, clock/data termination, comparator circuits).
• Lab experience using oscilloscopes, DMMs, frequency generators, power supplies, and data acquisition systems.
• Familiarity with wide‑bandgap devices (SiC, GaN) and high‑voltage or high‑power (>400V, >10kW) designs.
• Three‑phase power systems, power‑factor control, inverter/rectifier development.

• Advanced degree in Electrical Engineering.
• Self‑starter, quick learner, strong time management, and appreciation for team structure.
• Experience communicating and documenting technical topics at a small‑team level.
• Experience with SIMPLIS, SABER, Mentor Graphics DxDesigner, or Hyper Lynx.
• Multi‑phase inverter design for HV applications, multi‑isolated power system design, hardware‑in‑the‑loop testing, and military specifications.
• Program‑management tools such as Earned Value.

• 9/80 schedule (every other Friday off).
• Relocation eligible.
• Medical, dental, vision, life insurance, short‑term and long‑term disability.
• 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, employee scholar program, parental leave, paid time off, holidays.
• Annual short‑term and long‑term incentive compensation programs for eligible positions.

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, or veteran status.

RTX provides affirmative action in employment for qualified individuals with a disability and protected veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.