31 Mar 2026

On-Site Mechanical Engineers II

Raytheon… – Posted by Roland DIBO – Anywhere

Job Description

Raytheon is looking for an early-career Thermal Engineer to join the MA&T Department. The Thermal Engineer will be responsible for conducting detailed thermal analysis on products throughout their lifecycle. This includes activities from initial design trade studies and proposals through qualification testing and ongoing production support. The analyses will address a variety of complex problems, requiring solutions that are creative, thorough, practical, and aligned with organizational 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 the 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

Qualifications You Must Have

  • Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 2 years of prior relevant experience or an Advanced Degree in a related field.
  • Experience in thermal analysis with any of the following tools: FloTHERM, PATRAN, Thermal Desktop/SINDA or ANSYS or equivalent.
  • Experience in mechanical principles to solve classical thermal analysis solutions.

Qualifications We Prefer

  • Ability to work in a collaborative, team-based environment and independently.
  • Experience with solid modeling CAD tool such as CREO or equivalent. 
  • Experience in Electronics Cooling and Aerodynamic Heating Analyses.
  • Experience in production support.
  • Demonstrated experience in thermal testing: Planning, organization, execution, data reduction and correlation.
  • Experience presenting to external customers.
  • Willingness to travel to government and other facilities in support of program activities.
  • Degree in Mechanical or Aerospace Engineering.

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: This position is eligible for relocation

Learn More & Apply Now!

Please consider the following role type definition as you apply for this role.

  • Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.
  • This position requires onsite work in Tucson, AZ: https://careers.rtx.com/global/en/raytheon-tucson,-az-location

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 68,900 USD – 131,100 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, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays.

Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.

Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement.

Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.

This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.

TX anticipates the application window closing approximately 40 days from the date the notice was posted.

However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

Location:

US-AZ-TUCSON-805 ~ 1151 E Hermans Rd ~ BLDG 805

Position Role Type:

Onsite

How to Apply

https://careers.rtx.com/

Job Categories: CAD tools, Creo, and Mechanical Engineer. Job Types: On-Site. Salary: 100,000 and above. Job expires in 50 days.

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