Lead Thermodynamic Performance Engineer

Job Description SummaryWe are seeking a Senior Thermodynamic Performance Engineer to lead the analysis, prediction, and optimization of engine thermodynamic performance across the full operating envelope. In this role, you will be a technical leader for cycle performance, fuel efficiency, and operating margins, partnering closely with design, controls, test, and services teams.
You will own key performance models and datasets, drive test-to-model correlation, and provide clear, data-driven recommendations that improve safety, reliability, fuel burn, and operability.
At GE Aerospace, we believe the world works better when it flies. We are a world-leading provider of jet engines, components, and integrated systems for commercial and military aircraft. Working at GE Aerospace means you are bringing your unique perspective, innovative spirit, drive, and curiosity to a collaborative and diverse team. It means that if you have ideas, we will listen. You will be able be a part of our LEAN transformation so that you can work smarter and not harder. Here, you will do work that you will be proud of. Work that really matters.
If this sounds exciting to you and you have prior experience in Jet Engine Performance or related disciplines, we look forward to speaking with you.

Job Description

Roles and Responsibilities:

• Develop and own cycle and performance models (steady-state and transient) for engines across the operating envelope
• Predict thrust/power, fuel flow, temperatures, pressures, and margins versus altitude, Mach, and mission conditions
• Plan and support engine performance testing, including defining test matrices and key performance points
• Correlate test data to models, perform uncertainty analysis, and update maps/models based on results
• Create and refine component maps and limits (fan/compressor/turbine maps, operating lines, surge and temperature margins)
• Collaborate with controls engineers on schedules (VGV, bleeds, fuel flow) to balance performance, operability, and hardware life
• Analyze fleet and in-service performance data to identify trends, degradation, and improvement opportunities
• Lead performance trade studies and optimization for efficiency, fuel burn, and operating margins
• Support certification and customer programs with validated performance data and technical justifications
• Provide technical leadership and mentoring to junior engineers and drive best practices in thermodynamic performance
• Work cross-functionally with design, aero, mechanical, systems, test, and services teams to ensure performance requirements are met
• Improve gas turbine thermodynamic and operability modeling techniques
• Engage in research, design, development, and enhancement of technologies to improve performance, operability, and cost
• Develop strong relationships with external customers and partners
• Document technical data and results in accordance with engineering policies and procedures
• Communicate significant technical issues, risks, or developments in a timely manner
• Participate in organizational initiatives and technical/program reviews
• Support technical program managers and mentor less experienced engineers
• Make decisions within a defined framework and engage senior team members on complex issues
• Contribute independently to projects while supporting senior engineers in advancing performance related technologies

Required Qualifications:

• Bachelor's degree in engineering from an accredited university or college
• Minimum of 8 years' experience related to Aircraft Engine Performance or related discipline.
• GE Aerospace will not sponsor individuals for employment visas, now or in the future, for this job opening.

Desired Characteristics:

• Advanced degree in Mechanical or Aerospace Engineering with focus on thermofluids or turbomachinery.
• Enthusiasm for propulsion and aero/thermodynamic disciplines
• Experience in aircraft engine testing, cycle performance, or component aero design
• Proficiency with NPSS, Python, or similar simulation/programming tools
• Experience in gas turbine engine test support, analysis, and thermodynamic modeling
• Experience in engine qualification and certification
• Strong oral and written communication skills
• Strong interpersonal, leadership, and influencing skills
• Ability to work collaboratively in a structured team environment and also independently
• Process-oriented mindset with strong problem analysis, resolution skills, and systems thinking
• Strong analytical skills in thermodynamics and aerodynamics
• Experience documenting, planning, and executing technical programs; established project management skills
• Experience coaching and mentoring less experienced performance engineers
• Ability to obtain and maintain a U.S. Government Security Clearance (U.S. citizenship required)

The base pay range for this position is 130,000.00 - 175,000 USD Annual.The specific pay offered may be influenced by a variety of factors, including the candidate’s experience, education, and skill set. This position is also eligible for an annual discretionary bonus based on a percentage of your base salary/ commission based on the plan.  This posting is expected to close on September 14th, 2026.

GE Aerospace offers comprehensive benefits and programs to support your health and, along with programs like HealthAhead, your physical, emotional, financial and social wellbeing. Healthcare benefits include medical, dental, vision, and prescription drug coverage; access to a Health Coach from GE Aerospace; and the Employee Assistance Program, which provides 24/7 confidential assessment, counseling and referral services. Retirement benefits include the GE Aerospace Retirement Savings Plan, a 401(k) savings plan with company matching contributions and company retirement contributions, as well as access to Fidelity resources and planning consultants. Other benefits include tuition assistance, adoption assistance, paid parental leave, disability insurance, life insurance, and paid time-off for vacation or illness. 

GE Aerospace (General Electric Company or the Company) and its affiliates each sponsor certain employee benefit plans or programs (i.e., is a “Sponsor”). Each Sponsor reserves the right to terminate, amend, suspend, replace or modify its benefit plans and programs at any time and for any reason, in its sole discretion. No individual has a vested right to any benefit under a Sponsor’s welfare benefit plan or program. This document does not create a contract of employment with any individual.

This role requires access to U.S. export-controlled information. Therefore, employment will be contingent upon the ability to prove that you meet the status of a U.S. Person as one of the following: U.S. lawful permanent resident, U.S. Citizen, have been granted asylee or refugee status (i.e., a protected individual under the Immigration and Naturalization Act, 8 U.S.C. 1324b(a)(3)).

Additional Information