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Added 38 mins ago
PN
Research Engineer II - Building Energy Modeling
Pacific Northwest National Laboratory
Portland, OR · Richland, WA · Seattle, WA
- $89,300 USD / year
The BS&DG is seeking a Research Engineer II - Building Energy Modeling with strong knowledge of building energy systems, hands-on Energy Plus modeling expertise, programming and data…
Added 38 mins ago
PN
Software Engineer II - Building Applications
Pacific Northwest National Laboratory
UNAVAILABLE · Portland, OR · Seattle, WA · Richland, WA
- $109,000 USD / year
This position is in the Building Simulation and Design Group (BS&DG) within PNNL’s Electricity Infrastructure and Buildings Division. BS&DG conducts modeling and analysis to evaluate the…
Added 1 hour ago
YI
Simulation And Modeling Engineer III
York International Corp.
New Freedom, PA
- $98,509 to $101,033.46 USD / year
Added 2 hours ago
Technical Support Engineer
BOOZ, ALLEN & HAMILTON, INC.
Fayetteville, NC
As a Technical Support Engineer, you will help maintain and execute a network of simulators and modeling capabilities focused on providing rehearsal and exercise capabilities for various…
Added 3 hours ago
Engineer I - R&D Disposables (hybrid)
Vantive US Healthcare LLC
Plymouth, MN
…reliability & smart manufacturing (Learning / Doing (1)), Critical Systems (Learning / Doing (1)), Data Analysis & Analytics (Applying / Overseeing (2)), Data Analytics (Applying /…
Added 4 hours ago
SUPERVISOR
Space and Naval Warfare Systems Command
Point Loma Complex, CA
Added 4 hours ago
Mechanical Thermal Analysis Engineer II-IV
Kratos Defense & Security Solutions, Inc.
Roseville, CA
The Mechanical Thermal Analysis Engineer is responsible for the development of new tactical unmanned aircraft. Assignments will require experience with thermal analysis procedures including…
Added 4 hours ago
Mechanical Thermal Analysis Engineer II - IV (Active Clearance Required)
Kratos Defense & Security Solutions, Inc.
Sacramento, CA
The Mechanical Thermal Analysis Engineer is responsible for the development of new tactical unmanned aircraft. Assignments will require experience with thermal analysis procedures including…
Added 7 hours ago
Operations Engineer - OT Advanced Operations
FirstEnergy
Fairmont, WV
The Operational Technology (OT) Engineer works at FirstEnergy's Transmission or Distribution Control Center with a team of analysts and engineers in support of the Energy Management System…
Added 14 hours ago
Loads & Dynamics : Engineer Systems Modeling & Simulation – Level 2/3
Northrop Grumman
Chandler, AZ
The Mechanical Engineering Organization seeks an Loads & Dynamics : Engineer Systems Modeling & Simulation – Level 2/3 at the Chandler, AZ facility.
Added 14 hours ago
Thermal Analysis : Engineer Systems Modeling & Simulation – Level 2/3
Northrop Grumman
Chandler, AZ
Northrop Grumman Space System Sector is looking for a Thermal Analysis : Engineer Systems Modeling & Simulation – Level 2/3 to join the Thermal Analysis team within Launch Vehicles at the…
Added 17 hours ago
Engineer/Principal Engineer RF Microwave/Mixed Signal Design Engineer
Northrop Grumman
Baltimore
…and packaging approaches, RF chain analysis, electromagnetic simulation, data collection and analysis, and other modeling…
Added 17 hours ago
Industrial Engineer / Principal Industrial Engineer
Northrop Grumman
Palmdale
Northrop Grumman Aeronautics Systems has an opening for an Industrial Engineer (Level 2) or a Principal Industrial Engineer (Level 3) to join our team of qualified, diverse individuals in…
Added 17 hours ago
Principal Engineer Industrial
Northrop Grumman
Edwards AFB
Northrop Grumman Aeronautics Systems has an opening for a Principal Industrial Engineer (Level 3) to join our team of qualified, diverse individuals on the exciting program at Edwards Air…
Added 17 hours ago
Mechanical/Test Engineer III
Arcfield
Colorado Springs, CO
The Mechanical/Test Engineer will perform shock response testing for thermal protection system materials through impact, radiation, and thermal loading environments. The successful…
Added 17 hours ago
Mechanical/Structural Engineer III
Arcfield
Colorado Springs, CO
The Mechanical/Structural Engineer will perform hostile environment system qualification analyses. The successful candidate will perform a wide range of tasks spanning from CAD development…
Added 20 hours ago
Engineer/Principal Engineer RF Microwave/Mixed Signal Design Engineer
CORP-Corporate Office
United States
…and packaging approaches, RF chain analysis, electromagnetic simulation, data collection and analysis, and other modeling…
Added 20 hours ago
Radar System Modes & Algorithms Lead
Aerospace
Torrance, CA · Phoenix, AZ · Redmond, WA
Experience as a Systems Engineer including two or more of the following: requirements, design; specification development, modeling, simulation, or performance analysis; HW/ SW integration…
Added 20 hours ago
Senior / Staff Sim-to-Real Engineer (Tendon-based Robotic Hands)
Apptronik
Austin, TX
We are looking for an experienced and autonomous Senior/Staff Sim-to-Real Engineer to bridge the gap between simulation and physical hardware for our advanced tendon-driven robotic hands.
Added 21 hours ago
F-22 Flight Test Instrumentation Engineer (Associate or Experienced)
The Boeing Company
Edwards AFB, CA
…reports on all flight and ground testing of aircraft, weapons systems, software and components as well as modeling and simulation for the U.S. Air Force. There are three core components for…
Added 22 hours ago
SITEC - Network Engineer - MacDill AFB
Peraton
MacDill AFB, FL
…network. Network Engineers are also responsible for planning, modeling, simulation, design, installation, maintenance, management and coordination of the…
Added 23 hours ago
Power & Energy Storage Engineer
Anduril Industries
Costa Mesa, CA
Familiarity with battery modeling and simulation tools
Added 23 hours ago
CPU Performance Research Engineer
Qualcomm Incorporated
Austin, TX
…connected future for all. As a Qualcomm CPU Performance Research Engineer, you will drive innovation in next-generation CPU performance, efficiency, and scalability. Qualcomm Engineers…
Added 23 hours ago
Senior System Engineer
Astrion
Bedford / Hanscom AFB, MA
…operation and support, architectures development & implementation, modeling & simulation including but not limited to Model Based Systems Engineering principles, verification & validation,…
Added 1 day ago
Industrial Engineer / Principal Industrial Engineer
CORP-Corporate Office
United States
Northrop Grumman Aeronautics Systems has an opening for an Industrial Engineer (Level 2) or a Principal Industrial Engineer (Level 3) to join our team of qualified, diverse individuals in…

RTX

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

United States

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

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Job details

Pay: The salary range for this role is 37,000 USD - 82,000 USD.
Apply by: Nov 4, 2026
Posting language: English
Posted: Oct 29, 2026

Original job description

Date Posted:

2026-10-29

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

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 (ED&SI) 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.
Relocation Eligibility

Learn More & Apply Now!

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.

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 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.

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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More about this job

Skills

Structural engineering
Mechanical engineering
Python
C++
Research
Analytical skills
Adaptability

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