F135 Engine Core Upgrade (ECU) Propulsion Systems Analysis Engineering Intern (Summer 2027) (Onsite)

Prattwhitney; East Hartford (CT); On-site; USD 37,000 - 82,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

401(k) match

Paid time off

Job summary

RTX is seeking a motivated intern for the F135 Engine Core Upgrade (ECU) program. You will assist in propulsion system analysis, engine component assessments, and aero-thermal modeling under experienced engineers.

The role offers hands-on exposure to NPSS and Python/C++ workflows, with opportunities to contribute to performance, operability, and verification tasks in a fast-paced aerospace environment at East Hartford, CT.

Qualifications

• Pursuing a Bachelor’s or Advanced degree in Aeronautical, Aerospace, Mechanical Engineering, or related STEM.
• Minimum 3.0 GPA; coursework or projects may count toward experience.
• Ability to work with aero-thermal analysis tools and programming languages.

Responsibilities

• Support performance system matching and engine component assessments.
• Assist with aero-thermal modeling and operability predictions.
• Contribute to analysis tool improvements and automation.
• Collaborate with Systems Team to integrate analyses with other engineers.

Skills

Systems analysis

NPSS

Python

C++

Education

Bachelor’s or Advanced degree in Aeronautical, Aerospace, Mechanical Engineering or related STEM

Tools

NPSS

Python

C++

Job description

Country: United States of America Location: US-CT-EAST HARTFORD-G ~ 400 Main St ~ BLDG G Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract. Security Clearance Type: None/Not Required Security Clearance Status: Not Required The salary range for this role is 37,000 USD - 82,000 USD. 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. 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. Are you ready to explore the world of aerospace and defense? Do you want to learn from and collaborate with some of the greatest minds in the industry? At RTX, our internships, co-ops and full-time careers provide an exceptional foundation to work on complex problems, advance your skills and create a safer, more connected world. Discover opportunities to make a difference at RTX.

What You Will Do

The F135 Engine Core Upgrade (ECU) Program delivers propulsion system modernization for the F‑35 to support the aircraft’s upgraded Block 4 capabilities. Within the F135 ECU Program, Engine Design & Systems Integration (EDSI) is a dynamic engineering organization focused on the development and certification of military, commercial, and industrial gas turbine engines. The Engine Design & Systems Integration (EDSI) organization is responsible for the integration of components, modules, and sub‑systems into world class commercial and military propulsion systems. This includes engine performance, operability, system level modeling and simulation, validation, and verification of performance. Operability, and control requirements, and functional engine and air vehicle systems integration. ED&SI also defines engine architecture, system and structural design as well as manages all requirements across the program. As a F135 Engine Core Upgrade (ECU) Propulsion Systems Analysis Engineering Intern, typical duties and responsibilities are listed below and are executed under the guidance of a more experienced Engineer:

• Introduction to performance system matching, engine component assessments, performance and operability predictions.
• Utilizing NPSS aero-thermal modeling code as a representation of the engine and other systems.
• Analysis tool and process improvements and automation.
• Frequent interaction and integration with other engineers in the Systems Team.

What You Will Learn

This position offers the candidate an excellent opportunity to gain real world experience in the aero-thermal analysis of air breathing propulsion systems with a focus on system performance and operability; and offers an opportunity to develop close working experience with the P&W’s engineering development team. Engineering Interns at Pratt & Whitney work on challenging, meaningful, and impactful projects across our business. Our intern program seeks to help you develop an understanding of the aerospace industry and learn about our company and its operations.

Qualifications You Must Have

• Must be pursuing a Bachelor’s or Advanced degree in Aeronautical, Aerospace, Mechanical Engineering, or related Science, Technology, Mathematics (STEM) and actively enrolled through the completion of the intern session.
• Experience with systems analysis tools and languages (e.g. Numerical Propulsion System Simulation (NPSS), Python or C++ related programming language) Minimum 3.0 Cumulative GPA Experience may be obtained through on-the-job experience, research, coursework, or projects

Qualifications We Prefer

• Minimum 3.2 Cumulative GPA or higher
• Experience driving results through analytical thinking, adaptability, and continuous learning.
• Experience working effectively on teams.
• Able to obtain a U.S Government Secret Level Security Clearance

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.

• 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.

Equal Opportunity

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.

Legal

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About RTX

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.

Relocation Eligibility

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