Externals Design Engineer Intern (Summer 2027) (Onsite)

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

Benefits offered by this job

Medical

Dental

Vision

401(k) match

Paid time off

Holidays

Flexible work schedules

Parental leave

Job summary

RTX is seeking an Intern – Externals Design to join the Pratt & Whitney MSEN Engineering team in East Hartford. You will assist with design tasks, field investigations, and engine testing to support both development and production engines.

You will work with cross-functional teams to develop externals designs, interpret drawings, and apply CAD/PDM tools such as Siemens NX and Teamcenter to create models and drawings for engine components.

Qualifications

• Must be pursuing a bachelor’s or advanced degree in Mechanical Engineering, Aerospace Engineering or related STEM field and actively enrolled through the internship period.
• Experience with Excel, PowerPoint, MATLAB, Microsoft Project, Jira or similar.
• Minimum 3.0 cumulative GPA.
• Experience may be obtained through on-the-job experience, research, coursework, or projects.

Responsibilities

• Execute design tasks, support field investigations, assist development engine testing and support production engine assembly.
• Create and modify externals designs to meet project requirements.
• Collaborate with cross-functional teams to deliver engineering solutions.
• Support build and teardown activities, ensuring designs are implemented correctly.
• Utilize CAD and PDM tools to develop models and drawings.

Skills

Excel

PowerPoint

MATLAB

Microsoft Project

Jira

Engineering drawings reading

Education

Bachelor's or advanced degree in Mechanical or Aerospace Engineering

Tools

Siemens NX

Siemens Teamcenter

Job description

Eligibility

Date Posted: 2026-11-02 Country: United States of America Location: US-CT-EAST HARTFORD-ETC ~ 400 Main St ~ BLDG ETC Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: This job requires a U.S. Person. A U.S. Person is a lawful permanent resident as defined in 8 U.S.C. 1101(a)(20) or who is a protected individual as defined by 8 U.S.C. 1324b(a)(3). U.S. citizens, U.S. nationals, U.S. permanent residents, or individuals granted refugee or asylee status in the U.S. are considered U.S. persons. For a complete definition of “U.S. Person” go here. https://www.ecfr.gov/current/title-22/chapter-I/subchapter-M/part-120/subpart-C/section-120.62 Security Clearance Type: None/Not Required Security Clearance Status: Not Required

What You Will Do

Pratt & Whitney is seeking an Intern – Externals Design to support our Mechanical Systems, Externals, & Nacelles (MSEN) Engineering organization through execution of design tasks, field investigations, development engine test support and production engine assembly support.

Mechanical Systems, Externals, & Nacelles (MSEN): The MSEN Engineering organization is responsible for the design, development, and in-service support of power transmission systems; bearing compartments and rotor support design and analysis; oil and thermal management systems; engine externals packaging and architecture; and nacelles for both commercial and military engine models.

Key technical disciplines include Project Engineering, Mechanical Design, Structural Analysis, Product Definition, and System Modeling.

External hardware encompasses a wide range of components such as tubes, brackets, electrical harnesses, and mounting structures strategically packaged on the outside of the engine.

Externals Designers routinely interface with every module of a Pratt & Whitney gas turbine engine and integrate multiple systems, including lubrication, electrical, fuel, and air systems.

They also support operational engines by working with customer support teams to troubleshoot issues and return engines to service.

During engine overhauls, Externals Design collaborates with overhaul shops to investigate findings and establish part limits for continued service.

As an Externals Design Engineer Intern at Pratt & Whitney, you will…

• Execute design tasks, support field investigations, support development engine testing and support production engine assembly.
• Create and modify externals designs to meet project requirements.
• Collaborate with cross-functional teams to deliver engineering solutions.
• Support build and teardown activities, ensuring designs are implemented correctly.
• Utilize engineering drawings and follow written and verbal instructions.
• Apply knowledge of CAD and PDM tools, such as Siemens NX and Teamcenter, to develop models and drawings.
• Work closely with engineering teams to ensure project success.

What You Will Learn

• Develop technical knowledge in key design discipline areas, including blueprint interpretation, GD&T, externals component design, solid modeling, tolerance stack analysis, root cause assessments.
• How to engage cross-disciplinary teams to perform design tasks.
• How externals are designed and how their functions play a crucial role in engine operation.
• How to communicate complex technical topics effectively to design and Integrated Product Team (IPT) members.
• How to independently plan and execute the technical path for small design tasks.
• 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

• Must be pursuing a bachelor’s or advanced degree in Mechanical Engineering, Aerospace Engineering or related field (Science, Technology, Engineering or Mathematics (STEM) field and actively enrolled through the completion of the internship session.
• Experience with one or more tools such as Excel, PowerPoint, MATLAB, Microsoft Project, Jira, or similar.
• Minimum 3.0 Cumulative GPA.
• Experience may be obtained through on-the-job experience, research, coursework, or projects.

Qualifications We Prefer

• Experience with Siemens NX, Siemens Teamcenter.
• Experience reading engineering drawings.
• Experience with design or modeling of mechanical components.
• Experience with manufacturing methods such as tube bending, sheet metal forming and machining.

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.

Benefits

• 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.
• Holidays.
• Annual short-term and/or long-term incentive compensation programs.

Compensation

The salary range for this role is 37,000 USD - 82,000 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.

Location

This role is a U.S.-based role.

Application Window

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 and Diversity

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.

Privacy and Terms

Privacy Policy and Terms: Click on this link to read the Policy and Terms.

Company Overview

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.