Principal Mechanical Engineer Jobs in Tucson, AZ

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Mechanic Supervisor (effective 2025-2026 School Ye...

Tucson Unified School District

profile Tucson - USA

SUMMARYConducts on-site supervision of mechanics assigned to a specific shift. Position has the authority to give direction and guidance to shift mechanics and discipline as needed per policy.MINIMUM REQUIREMENTSSix years of skilled automotive (mechanical and electrical) repairTwo years of superviso...

2 days ago
Full Time

Senior Principal Mechanical Engineer

Rtx

profile Tucson - USA

Date Posted:Country:United States of AmericaLocation:AZ807: RMS AP BldgEast Hermans Road Building 807 Tucson AZ 85756 USAPosition Role Type:OnsiteU.S. Citizen U.S. Person or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start...

3 days ago
Full Time

Principal Mechanical Engineer Thermal Engineer

Rtx

profile Tucson - USA

Date Posted:Country:United States of AmericaLocation:AZ805: RMS AP BldgEast Hermans Road Building 805 Tucson AZ 85756 USAPosition Role Type:OnsiteU.S. Citizen U.S. Person or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start...

3 days ago
Full Time

Reliability-fracas Engineer Ii

Rtx

profile Tucson - USA

Date Posted:Country:United States of AmericaLocation:AZ201: RMS AP BldgEast Hermans Road Building 801 Tucson AZ 85756 USAPosition Role Type:OnsiteU.S. Citizen U.S. Person or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start...

3 days ago
Full Time

Principal Engineer Section Lead Phalanxsearam

Rtx

profile Tucson - USA

Date Posted:Country:United States of AmericaLocation:AZ807: RMS AP BldgEast Hermans Road Building 807 Tucson AZ 85756 USAPosition Role Type:OnsiteU.S. Citizen U.S. Person or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start...

3 days ago
Full Time

Mechanical Engineer Iii Space Payloads

Rocket Lab Corporation

profile Tucson - USA

ABOUT ROCKET LABRocket Lab is an end-to-end space company delivering responsive launch services complete spacecraft design and manufacturing payloads satellite components and more all with the goal of opening access space. The rockets and satellites we build and launch enable some of the most ambit...

24 days ago
Full Time

Senior Mechanical Engineer Iii, Space Payloads Sec...

Rocket Lab Corporation

profile Tucson - USA

ABOUT ROCKET LABRocket Lab is an end-to-end space company delivering responsive launch services complete spacecraft design and manufacturing payloads satellite components and more all with the goal of opening access space. The rockets and satellites we build and launch enable some of the most ambit...

24 days ago
Full Time

Senior Mechanical Engineer Iiprincipal, Space Payl...

Rocket Lab Corporation

profile Tucson - USA

ABOUT ROCKET LABRocket Lab is an end-to-end space company delivering responsive launch services complete spacecraft design and manufacturing payloads satellite components and more all with the goal of opening access space. The rockets and satellites we build and launch enable some of the most ambit...

24 days ago
Full Time

Senior Mechanical Engineer Iii, Space Payloads Sec...

Rocket Lab

profile Tucson - USA

ABOUT ROCKET LABRocket Lab is an end-to-end space company delivering responsive launch services complete spacecraft design and manufacturing payloads satellite components and more all with the goal of opening access space. The rockets and satellites we build and launch enable some of the most ambit...

24 days ago
Full Time

Senior Principal Mechanical Engineer Structural

Rtx

profile Tucson - USA

Date Posted:Country:United States of AmericaLocation:AZ808: RMS AP BldgEast Hermans Road Building 808 Tucson AZ 85756 USAPosition Role Type:OnsiteU.S. Citizen U.S. Person or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start...

27 days ago
Full Time

2026 Fulltime Mechanical Engineer I Onsite

Rtx

profile Tucson - USA

Date Posted:Country:United States of AmericaLocation:AZ202: 3350 EHemisphere Loop Bldg M09 3350 EHemisphere Loop Bldg M09 Building M09 Tucson AZ 85706 USAPosition Role Type:OnsiteU.S. Citizen U.S. Person or Immigration Status Requirements: Active and transferable U.S. government issued security clea...

30+ days ago
Full Time

Specter Sr Principal Mechanical Cptl

Rtx

profile Tucson - USA

Date Posted:Country:United States of AmericaLocation:AZ808: RMS AP BldgEast Hermans Road Building 808 Tucson AZ 85756 USAPosition Role Type:OnsiteU.S. Citizen U.S. Person or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start...

30+ days ago
Full Time

Mpbd Engineering Business Manager M4 Active Secret...

Rtx

profile Tucson - USA

Date Posted:Country:United States of AmericaLocation:AZ808: RMS AP BldgEast Hermans Road Building 808 Tucson AZ 85756 USAPosition Role Type:OnsiteU.S. Citizen U.S. Person or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start...

30+ days ago
Full Time

2026 Summer Intern Mechanical Engineer

Roche

profile Tucson - USA

At Roche you can show up as yourself embraced for the unique qualities you bring. Our culture encourages personal expression open dialogue and genuine connections where you are valued accepted and respected for who you are allowing you to thrive both personally and professionally. This is how we aim...

30+ days ago
Full Time

2026 Summer Intern Mechanical Engineer Instrument ...

Roche

profile Tucson - USA

At Roche you can show up as yourself embraced for the unique qualities you bring. Our culture encourages personal expression open dialogue and genuine connections where you are valued accepted and respected for who you are allowing you to thrive both personally and professionally. This is how we aim...

30+ days ago
Full Time

Sr. Opto-mechanical Engineer

Rtx

profile Tucson - USA

Date Posted:Country:United States of AmericaLocation:AZ201: RMS AP BldgEast Hermans Road Building 801 Tucson AZ 85756 USAPosition Role Type:OnsiteU.S. Citizen U.S. Person or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start...

30+ days ago
Full Time

Opto-mechanical Engineer Ii

Rtx

profile Tucson - USA

Date Posted:Country:United States of AmericaLocation:AZ201: RMS AP BldgEast Hermans Road Building 801 Tucson AZ 85756 USAPosition Role Type:OnsiteU.S. Citizen U.S. Person or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start...

30+ days ago
Full Time

Capture & Proposal Project Lead

Rsc2

profile Tucson - USA

Full-timeDescriptionFounded in 2009 RSC2 Inc. is a Small Business Administration (SBA) Certified HUBZone Professional Services company headquartered in Baltimore Maryland. RSC2 provides breakthrough expertise support services and technologies to make operations programs and systems of record perform...

30+ days ago
Full Time

Senior Mechanical Engineer Advanced Airframes

Rtx

profile Tucson - USA

Date Posted:Country:United States of AmericaLocation:AZ851: RMS AP Bldg M01 1151 East Hermans Road Building M01 Tucson AZ 85756 USAPosition Role Type:OnsiteU.S. Citizen U.S. Person or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior...

30+ days ago
Full Time

2026 Fulltime Mechanical Engineer Ii Onsite

Rtx

profile Tucson - USA

Date Posted:Country:United States of AmericaLocation:AZ888: RMS AP BldgEast Hermans Road Building 928 Tucson AZ 85706 USAPosition Role Type:OnsiteU.S. Citizen U.S. Person or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start...

30+ days ago
Full Time