Raytheon Technologies

Senior Mechanical Engineer - Thermal Engineer

Raytheon Technologies$86K — $165K *
Aerospace & Defense
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in STEM (Science, Technology, Engineering, Mathematics) with 5+ years experience; advanced degrees can substitute for experience.
  • Experience using thermal analysis tools such as ANSYS, PATRAN, or Thermal Desktop/SINDA.
  • Solid understanding of mechanical principles for thermal analysis, both classical and finite element.
  • Demonstrated experience in planning and executing thermal testing and data correlation.
  • Must be a U.S. citizen with eligibility to obtain government security clearance.

Responsibilities

  • Perform hand calculations to define scope for detailed analysis models.
  • Conduct detailed thermal analyses to address engineering challenges.
  • Generate comprehensive test plans for analysis validation and compliance verification.
  • Analyze test data to align models with actual performance.
  • Collaborate with team to solve moderate complexity thermal problems within project constraints.
  • Review work with peers to ensure technical integrity and accuracy.
  • Present analytical results to internal and external stakeholders.

Benefits

  • Comprehensive healthcare package including medical, dental, and vision coverage.
  • Parental leave policy including paternal benefits.
  • Flexible work schedules to promote work/life balance.
  • Career development programs and educational assistance options.
  • Child/adult backup care services.
Full Job Description

Date Posted:

2026-07-30

Country:

United States of America

Location:

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

Position 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.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance​

Security Clearance Type:

DoD Clearance: Secret

Security Clearance Status:

Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date

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 mid-level career Senior 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, practical, 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 heat transfer 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.

**This is an onsite position at our Tucson, AZ facility**

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
  • May travel to government and other facilities in support of program activities 
  • 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

Qualifications You Must Have

  • Bachelor’s degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years of prior relevant experience; An advanced degree in a related field may be substituted for additional years of experience as follows: Master’s is equal to 2 years of experience or a Ph.D. is equal to 5 years of experience
  • Experience in thermal analysis with any of the following tools: ANSYS, PATRAN, or Thermal Desktop/SINDA or equivalent
  • Experience in mechanical principles to solve classical thermal analysis solutions both inside and outside of finite element tools and an ability to work independently and manage multiple priorities
  • Demonstrated experience in thermal testing: Planning, organization, execution, data reduction and correlation
  • Ability to obtain a U.S. government issued security clearance. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance, Clearance must be active and transferable prior to start date 

Qualifications We Prefer

  • Advanced degree in aforementioned disciplines. ABET is the preferred, although not required, accreditation standard
  • 8+ years of professional experience in the thermal analysis of complex systems that require collaboration of multiple engineering disciplines
  • Experience with solid modeling CAD tool such as CREO or equivalent 
  • Experience in Electronics Cooling and Aerodynamic Heating Analyses
  • Demonstrated experience in leading a team of thermal analysts on program efforts
  • Demonstrated experience in leading thermal testing, including model correlation
  • Ability to travel to government and other facilities in support of program activities


What We Offer

Whether you’re just starting out on your career journey or are an experienced professional, we offer a robust total rewards package that goes above and beyond with compensation; healthcare, wellness, retirement and work/life benefits; career development and recognition programs. Some of the superior benefits we offer include parental (including paternal) leave, flexible work schedules, achievement awards, educational assistance, and child/adult backup care.

Please ensure the role type defined below is appropriate for your needs before applying to this role. This position is classified as:

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.

Candidates will learn more about role type and current site status throughout the recruiting process. For onsite and hybrid roles, commuting to and from the assigned site is the employee’s personal responsibility.

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 86,800 USD - 165,200 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.

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.

About Raytheon Technologies

Raytheon Solipsys, a wholly-owned subsidiary of the Raytheon Company, is an industry leader in the development of integrated Command and Control (C2) Network-Centric solutions for the Domestic and International DoD and Homeland Security. Through proven systems and software engineering practices, built on the invention and application of innovative technologies, they deliver the C2 infrastructure necessary to effectively control security/military forces in any environment. Their reliable solutions assure information superiority, increased shared awareness, deep sensor reach, aircraft control, air defense, disaster management, and time-critical decision making.

Raytheon Technologies Careers

Join the innovative world of Raytheon Technologies, a leader in aerospace and defense, where we offer unparalleled job opportunities in an environment that champions diversity, leadership, and professional growth.

Work You’ll Do

At Raytheon Technologies, you’ll be part of a company that values innovation and leadership. Our team is dedicated to solving some of the most complex challenges in aerospace and defense, making significant impacts worldwide. With a culture that fosters diversity and inclusion, you will collaborate with some of the brightest minds in the industry.

Transform Your Career

Step into a role that harnesses your skills and propels your career to new heights. Raytheon Technologies is not just about thinking big but making those big ideas happen. We provide robust career development opportunities that include comprehensive training and development programs, leadership workshops, and continuous learning through our internal platforms.

Innovate and Lead

Join our team of over 60,000 professionals globally, who are not only experts in their fields but are also driven by a passion for innovation and excellence. At Raytheon Technologies, you are positioned at the forefront of the industry, where your work directly contributes to groundbreaking advancements in technology and defense.

Internship and Employment Opportunities

Whether you’re starting your career or looking to advance, Raytheon Technologies offers a range of employment and internship opportunities that can help you achieve your professional goals. Our internships provide a solid foundation of skills and experiences, while our full-time positions offer a path to personal and professional growth within the company.

Benefits and Culture

Our employees enjoy a competitive package of benefits and rewards that reflect their invaluable role in our company. From health and wellness programs to performance bonuses and flexible working conditions, we ensure our team members are well taken care of.

Networking and Professional Development

At Raytheon Technologies, networking and professional development are part of our DNA. We encourage our employees to engage in internal and external networking events, leadership training, and diversity initiatives that enhance their career journey.

Join Our Team

Explore the numerous positions available that match your skills and interests. We are looking for passionate, curious, and solution-driven team players who are ready to take their career to the next level.

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Prepare for Your Future

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SEARCH RAYTHEON TECHNOLOGIES JOBS

Join us in our mission to create a safer future and be a part of a team that values integrity, excellence, and teamwork. At Raytheon Technologies, your career is just the beginning of a lifelong journey of professional and personal growth.
Learn more about Raytheon Technologies
Size
14,771 employees
Market Cap
$32,494
Industry
Founded
1922
NASDAQ

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