Principal Aerothermal Design Engineer (Onsite)

Date Posted:

2026-06-29

Country:

United States of America

Location:

US-CT-WINDSOR LOCKS-B1 ~ 1 Hamilton Rd ~ BLDG 1

Position Role Type:

Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements:

The ability to obtain and maintain a U.S. government issued security clearance is required.​ 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:

Active and existing security clearance required after day 1

We are seeking an experienced Aerothermal Design Engineer to play a critical role in the design and development of high-performance systems where aerodynamics and thermal performance are essential to success. In this role, you will lead complex aerothermal analyses, apply advanced modeling and simulation techniques, and influence design decisions from early concept through qualification and production.  

You will collaborate closely with multidisciplinary engineering teams, bring deep technical judgment to challenging problems, and contribute to the advancement of next-generation technology. This position offers the opportunity to work on technically demanding programs, have a visible impact on system performance and reliability, and shape innovative solutions throughout the product lifecycle. 

What You Will Do 

• Execute, coordinate, and oversee all aspects of aerothermal design for turbomachinery 

• Support root cause investigations and develop innovative solutions to complex engineering challenges 

• Maintain, improve, and develop techniques, methods, and standards for the aerodynamic design of turbomachinery 

• Participate in multidisciplinary teams engaged in the design and development of new technologies and system architectures to achieve optimal performance 

• Support prototype and production development test activities 

• Identify opportunities and establish strategies to improve engineering processes, tools, technologies, and quality control standards 

• Perform verification and validation of compressor, turbine, and fan performance maps for relevant applications 

• Lead the implementation of changes based on analysis of industry trends and developments in turbomachinery 

• Share knowledge, mentor, and help develop the next generation of engineers 

Qualifications You Must Have 

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years prior relevant experience or an Advanced Degree in a related field and minimum 5 years of experience 

•  U.S. citizenship only (dual citizenship not permitted) is required, as access to information under this program/contract is restricted to individuals with sole U.S. citizenship.  

• Prior engineering experience within aerospace, automotive, power generation or manufacturing environments.   

Qualifications We Prefer 

• Proficient in 3D CAD modeling applications such as Unigraphics NX or similar 

• Skilled in 1D mean line sizing of turbomachinery 

• Experienced in 3D blading of centrifugal compressors, radial inflow turbines, and axial fans 

• Capable of characterizing turbomachinery performance in a laboratory environment 

• Able to use commercial CFD software such as STAR-CCM+, ANSYS Fluent, or ANSYS CFX for turbomachinery design 

• Knowledgeable in basic programming using common languages (e.g., Python, MATLAB, C++) 

• Understanding of mechanical design principles, including strength analysis and material behavior 

What We Offer 

Some of our competitive benefits package includes:  

• Medical, dental, and vision insurance 

• Three weeks of vacation for newly hired employees 

• Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option 

• Tuition reimbursement program 

• Student Loan Repayment Program 

• Life insurance and disability coverage 

• Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection 

• Birth, adoption, parental leave benefits 

• Ovia Health, fertility, and family planning 

• Adoption Assistance          

• Autism Benefit 

• Employee Assistance Plan, including up to 10 free counseling sessions 

• Healthy You Incentives, wellness rewards program 

• Doctor on Demand, virtual doctor visits 

• Bright Horizons, child and elder care services 

• Teladoc Medical Experts, second opinion program 

•  And more!  

Learn More & Apply Now! 

We make modern flight possible for millions of travelers and our military every second.  Our major product lines are on-board virtually every aircraft flying. Be it keeping passengers safe with our emergency power generation systems or creating a positive in flight experience through reliable cabin pressure controls and quieter engines, Power & Controls focuses on delivering a best-in-class experience to our customers. We hire the top people in the industry. Their ideas drive our performance, and their integrity keeps our customers happy. Join us as we take flight! 

*Please ensure the role type (defined below) is appropriate for your needs before applying to 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. 

At Collins, the paths we pave together lead to limitless possibility. And the bonds we form – with our customers and with each other -- propel us all higher, again and again.  

Apply now and be part of the team that’s redefining aerospace, every day. 

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 107,500 USD - 204,500 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.

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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