2026 Fulltime Raytheon Mechanical Engineer II Thermal Engineer

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At Raytheon the foundation of everything we do is rooted in our values and a higher calling to help our nation and allies defend freedoms and deter aggression. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of todays mission and stay ahead of tomorrows threat. Our team solves tough meaningful problems that create a safer more secure world.

The Mechanical Analysis and Test (MA&T) Department is responsible for ensuring structural and thermal design robustness across the Raytheon portfolio of products. From preliminary concepts to fielded weapon system support MA&T delivers innovative structural and thermal engineering solutions utilizing methods ranging from classical fundamental & empirically based techniques to state-of-the-art finite element methods leveraging industry leading commercial tools; all complimented and validated by tests executed in a manner to ensure cost effective yet technically balanced solutions.

Raytheon is seeking a Thermal Engineer to join the MA&T 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

Qualifications You Must Have

• Masters in Science Technology Engineering or Mathematics (STEM)
• 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 both inside and outside of finite element tools.

Qualifications We Prefer

• Degree in Mechanical or Aerospace Engineering
• 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
• Demonstrated experience in thermal testing: Planning organization execution data reduction and correlation

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!

• 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.
• Please upload a copy of your most recent transcripts with your resume when applying to this requisition. Include your cumulative GPA and projected graduation date on your resume
• This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA CAS) an agency of the Department of Defense handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: part of our commitment to maintaining a secure hiring process candidates may be asked to attendselect 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 68900 USD - 131100 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 candidates 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 companys 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.
  RTX 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.

  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 or 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 Section 503 of the Rehabilitation Act and the Vietnam Era Veterans Readjustment Assistance Act.

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