28 principal mechanical engineer thermal engineer jobs found in Tucson

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Security Clearance (27) Engineering (26) Automotive (5) Electronics (2) Information Technology (1)

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Tucson Full time principal mechanical engineer thermal engineer

Tucson Full time principal mechanical engineer thermal engineer

Principal Mechanical Engineer - Thermal Engineer

RTX

Tucson, AZ

Oct 16, 2026

Principal Mechanical Engineer - Structural Engineer

RTX

Tucson, AZ

Oct 16, 2026

Principal Mechanical Engineer, Harness & Interconnect

RTX

Tucson, AZ

Sep 25, 2026

Principal Mechanical Engineer - Test Equipment, Onsite (Tucson, AZ)

RTX

Tucson, AZ

Sep 22, 2026

Principal Environmental Test Engineer - Team Lead

RTX

Tucson, AZ

Sep 10, 2026

Principal Mechanical Engineer ALE

RTX

Tucson, AZ

Sep 04, 2026

Sr Principal Mechanical Engineer, High Temp Materials

RTX

Tucson, AZ

Aug 27, 2026

Principal Engineer – Propulsion

RTX

Tucson, AZ

Aug 25, 2026

Principal Engineer – Propulsion

RTX

Tucson, AZ

Aug 21, 2026

Senior Principal Engineer – Power Sources / One Shots

RTX

Tucson, AZ

Aug 14, 2026

Senior Principal Engineer – Solid Propulsion

RTX

Tucson, AZ

Aug 14, 2026

Principal Mechanical Engineer, Design

RTX

Tucson, AZ

Aug 14, 2026

Senior Principal Engineer – Electrical Fuze & Initiation Systems

RTX

Tucson, AZ

Aug 14, 2026

Principal Antenna and Radome Engineer

RTX

Tucson, AZ

Aug 14, 2026

Principal RF Mechanical Engineer

RTX

Tucson, AZ

Aug 14, 2026

Senior Principal RF Antenna and Radome Engineer

RTX

Tucson, AZ

Aug 14, 2026

Senior Principal RF Mechanical Engineer

RTX

Tucson, AZ

Aug 14, 2026

Principal Optical Design Engineer

RTX

Tucson, AZ

Oct 17, 2026

Principal Analog Electronics Design Engineer

RTX

Tucson, AZ

Oct 14, 2026

Principal Environmental Test Technician

RTX

Tucson, AZ

Oct 01, 2026

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