About Pratt & Whitney Canada Pratt & Whitney Canada (P&WC;) is a global leader in aerospace innovation, proudly headquartered in Longueuil, Quebec, since 1928. We design and manufacture next-generation aircraft engines that power the world’s largest fleet of business, general aviation, and regional aircraft and helicopters. For nearly 100 years, our teams have been at the forefront of propulsion technology, pushing boundaries to make flight more efficient and reliable. Our engines support missions that truly matter, from transporting people and essential goods, to enabling emergency medical services, humanitarian operations, and wildfire suppression around the world.
An Employer of Choice Pratt & Whitney Canada was named one of Canada’s Best Employers for 2026 by Forbes, marking the 11th consecutive year the company has earned this recognition. Pratt & Whitney Canada also ranked #1 employer in the aerospace and defense industry in the country. In addition, our headquarters continue to be recognized among the top employers in the Montreal region. Together, these distinctions reinforce our reputation as an employer of choice in Montreal, across Canada, and around the world.
Internship dates: January 5th to April 23rd, 2027. Location: The position is based at our Mississauga location; internship from Monday to Friday, with flexible hours and exclusively on-site.
Why join our team? The student will be part of the advanced performance engineering team and will have access to the experience, tools, and data available within this organization. The focus will be on research, modeling, and analysis of engine performance and non-CO2 climate impacts, particularly how these are quantified in engine performance. The position is based at our Mississauga location, from Monday to Friday, with flexible hours and exclusively on-site.
What will your day-to-day look like? Support the Advanced Performance team in evaluating engine performance of current and future products.
Develop expertise in aviation climate science and metrics appropriate for engine design.




Improve and deploy aviation contrail modeling methods within P&W.;
Develop and execute large-scale contrail simulations using P&W; HPC resources.
Contribute to developing an engine performance modeling framework for non-CO2 effects.
Investigate the effects of Sustainable Aviation Fuel (SAF) and Hydrogen on non-CO2 impacts.
Execute engine cycle simulations to evaluate non-CO2 performance metrics.
Create and deliver presentations at team meetings (in person and teleconference).
What do you need to be successful? Be eligible to work in Canada.
Be enrolled in a Canadian university throughout your internship.
Be able to work on-site in the province where you are hired if applicable.
Pursuing a degree in aerospace engineering, engineering science, applied computing, computer science, or mechanical engineering.
Experience with multidisciplinary physics-based modeling (e.g. physics, mathematics, thermodynamics, fluid mechanics, and algorithm development).
Advanced python skills with experience in memory optimization, object-oriented programming, and multiprocessing.
Experience working in shell / HPC environments.
Experience handling and processing large data sets using Excel, Python, and/or Matlab.
Self-driven, critical thinking and curiosity.
Effective communication and documentation using MS office.
Fluent in English.
Working at Pratt & Whitney Canada The masculine pronoun is used without discrimination and solely for the purpose of making the text easier to read. We will consider applications from all qualified candidates. At Pratt & Whitney Canada, we combine passion, boldness, and precision to design, manufacture, and maintain the most advanced and reliable aircraft engines in the world.



Our work and the quality of our products contribute to the success of our customers, who in turn save lives, support commerce, connect communities, and protect freedom. At Pratt & Whitney Canada, you have the prospect to make a difference every day—just look up.
Are you ready to go beyond? The selected candidate will be required to complete a criminal background check and any applicable clearances with respect to the handling and transfer of controlled goods. Employment is conditional upon the successful completion of these checks and obtaining the required clearances. Failure to do so will result in the withdrawal of the employment offer.
The salary range for this role is 23.10 to 33.30 CAD.
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.
This job posting is not for an existing position vacancy.
RTX adheres to the principles of equal employment.
All qualified applications will be given careful consideration without regard to ethnicity, color, religion, gender, sexual orientation or identity, national origin, age disability, protected veteran status or any other characteristic protected by law.
Privacy Policy and Term: RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses - Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.

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📌 Internship - Winter 2027 - Sustainable Propulsion Performance Analysis and Methods Development (Ontario)
🏢 Prattwhitney
📍 Ontario