Senior Mechanical Engineer - Thermal Engineer

Prattwhitney; Tucson (AZ); On-site; USD 86,800 - 165,200; Full time

Benefits offered by this job

Competitive salary (USD 86,800-165,200)

Healthcare benefits

Retirement and work/life benefits

Educational assistance

Job summary

Prattwhitney in Tucson, AZ is seeking a Thermal Analysis Engineer to tackle complex thermal challenges. You will perform detailed analyses, generate documentation, and lead test teams while ensuring compliance with customer requirements.

The ideal candidate will hold a STEM degree with significant experience in thermal analysis tools and principles, and be capable of obtaining an active U.S. government security clearance. The position offers a competitive salary and comprehensive benefits.

Qualifications

• 5+ years of prior relevant experience in thermal analysis.
• Experience leading thermal testing and correlation.
• Strong problem-solving capability with thermal analyses.

Responsibilities

• Perform thermal analyses to address program challenges.
• Generate test plans to validate hardware compliance.
• Present analysis results to stakeholders and customers.

Skills

Thermal analysis experience

Mechanical principles knowledge

Ability to obtain security clearance

Education

STEM degree

Advanced degree in related field (preferred)

Degree in Mechanical or Aerospace Engineering (preferred)

Tools

ANSYS

PATRAN

Thermal Desktop/SINDA

CREO

Job description

Job Description

Date Posted: 2026-05-18

Location: Tucson, AZ – 1151 E Hermans Rd, BLDG 805

Role Type: Onsite – U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.

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 under program cost and schedule constraints
• Review your work with peers to ensure technical accuracy
• Present results to internal, external and government customers; travel to government and other facilities as required to support program activities
• Generate detailed documentation of work and archive for reference
• Act as technical leader (help define/refine and/or develop MA&T department technical processes and tools) and/or lead analysis/test teams

Qualifications You Must Have

• Typically requires a STEM degree and a minimum of 5 years of prior relevant experience
• Thermal analysis experience with tools such as ANSYS, PATRAN, Thermal Desktop/SINDA or equivalent
• Mechanical principles knowledge to solve classical thermal analyses both inside and outside finite element tools
• Experience in thermal testing: planning, organization, execution, data reduction and correlation
• Ability to obtain a U.S. government issued security clearance; U.S. citizenship required; clearance must be active and transferable prior to start date

Preferred Qualifications

• Advanced degree in related field
• Degree in Mechanical or Aerospace Engineering
• 8+ years of professional experience in thermal analysis of complex systems requiring collaboration across multiple engineering disciplines
• Experience with solid modeling CAD tools such as CREO or equivalent
• Experience in electronics cooling and aerodynamic heating analyses
• Experience leading a team of thermal analysts on program efforts
• Experience leading thermal testing, including model correlation
• Experience presenting to external customers and traveling to government facilities
• Advanced degree and ABET accreditation preferred

Benefits

This role offers a total rewards package including competitive salary (USD 86,800-165,200), healthcare, wellness, retirement, and work/life benefits; career development and recognition programs; parental (including paternal) leave, flexible work schedules, educational assistance, and child/adult backup care.

Equal Opportunity Employer

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, veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.