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Senior Principal Mechanical Engineer - Thermal

Job in Tucson, Pima County, Arizona, 85718, USA
Listing for: Raytheon
Full Time position
Listed on 2026-02-06
Job specializations:
  • Engineering
    Systems Engineer, Engineering Design & Technologists, Electrical Engineering, Aerospace / Aviation / Avionics
Salary/Wage Range or Industry Benchmark: 132400 - 251600 USD Yearly USD 132400.00 251600.00 YEAR
Job Description & How to Apply Below

Overview

Raytheon is seeking an experienced Senior Principal Thermal Engineer to join the Mechanical Analysis and Test Department. The Thermal Engineer is responsible for detailed thermal analysis on products throughout their lifecycle from initial design trade studies and proposals through qualification testing to enduring production support. The analyses will cover a wide range of difficult problems, requiring solutions that are imaginative, thorough, practicable, and consistent with organization objectives.

The analysis tasks will span the spectrum from classical hand analyses to detailed analyses requiring the use of finite element analysis software. A Thermal Engineer of this salary grade is expected to have a level of technical competence with thermodynamic principles. The Thermal Engineer will be held accountable for completing his/her work within the agreed upon cost and schedule. Additionally, the selected candidate will be expected to present their work for peer reviews and to be a peer reviewer for other engineers’ work.

Finally, the engineer is expected to plan and support tests, perform data reduction and engage in thermal model correlation.

What You Will Do
  • Perform Hand Calculations to determine scope of higher detail analysis models
  • Perform detailed thermal analyses to solve various program thermal challenges
  • Generate test plans required to validate analyses and verify hardware compliance to customer requirements
  • Analyze test data to validate and correlate models
  • Work with experienced analysts on problems of moderate complexity to provide the answers needed under program cost and schedule constraints
  • Review your work with peers to ensure technical accuracy
  • Present results to internal, external, and government customers
  • Generate detailed documentation of work and archive for reference
  • Act as a technical leader (help define/refine and/or develop MA&T department technical processes and tools) and/or lead analysis/test teams

The Senior Principal Mechanical Engineer - Thermal job is onsite in Tucson, AZ.

Qualifications You Must Have
  • Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 10 years of prior relevant experience
  • Experience running complex structural analysis with any of the following tools: PATRAN, NASTRAN, ANSYS or equivalent software
  • Dynamic, Static, Non-linear, Transient, etc.
Qualifications We Prefer
  • 15+ years of professional experience in the structural analysis of complex systems that require collaboration of multiple engineering disciplines (such as a weapon system)
  • Experience with solid modeling CAD tool such as CREO or equivalent
  • Experience in Electronics Cooling and Aerodynamic Heating Analyses
  • Demonstrated experience in leading thermal testing:
    Planning, organization, execution, data reduction and correlation
  • Earned Value Management System knowledge
  • Experience in supporting EACs, BOEs and proposals
  • Experience presenting to external customers
  • Ability to travel to government and other facilities in support of program activities
  • Advanced degree in aforementioned disciplines. ABET is the preferred, although not required, accreditation standard
What We Offer
  • Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value:
    Safety, Trust, Respect, Accountability, Collaboration, and Innovation.
  • Relocation Eligibility
Learn More & Apply Now!

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

The salary range for this role is 132,400 USD - 251,600 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.

Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability,…

Position Requirements
10+ Years work experience
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