Senior Principal Design Engineer - F135 HPC (Onsite)

Date Posted:

2026-09-11

 Country:

United States of America

 Location:

US-FL-JUPITER-ADR ~ 17900 Beeline Hwy ~ ADR BLDG

 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

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.

Pratt & Whitney is a world leader in the design, manufacture and service of aircraft engines and auxiliary power systems and has been revolutionizing modern flight for over 100 years. Join us and help shape the future of aerospace and defense.

Pratt & Whitney Compression Systems Engineering (CSE) HPC Design group seeks a highly proficient, detail‑focused Senior Principal Mechanical Design Engineer to serve as Senior Design Integrator across the F135 ECU and Base HPC programs. The selected candidate will lead design integration strategy for the Engine Core Upgrade (ECU) test‑validation phases and beyond to ensure critical lessons learned from the F135 HPC Base program are successfully captured, transferred, and embedded into ECU.

This senior‑level role requires recognized technical expertise, cross‑discipline leadership, strong communication skills, ability to mentor/coach others, and the ability to influence strategic design direction across multiple Integrated Product Teams (IPTs) and CIPTs.

What You Will Do

As the Sr Design Integrator, you will:

• •Develop integrated design strategies for ECU module and engine‑level test‑validation phases, ensuring efficient configuration planning, technical readiness, and execution of pre‑test and post‑test activities.
• •Drive Base‑to‑ECU lessons‑learned transfer, maintaining cross‑module and cross‑discipline alignment so historical knowledge, ESW improvements, and best practices are applied consistently and early.
• •Serve as a technical design leader and “go‑to” integration expert, providing guidance and cross‑discipline problem solving for complex issues involving structures, aero, HT&SF, manufacturing, quality, and other modules.
• •Oversee design‑validation workstreams, coordinating manufacturing readiness, EFPRs, engine builds and module‑integration activities—including HPC gapping—and leading technical risk‑mitigation strategies.
• •Lead or support design‑strategy and discipline‑development initiatives, shaping toolsets, methods, improve EKS content, and data systems used across the design organization.
• •Mentor and coach engineering talent by providing training, technical reviews, approval authority, and support for early‑career engineers.
• •Drive engineering‑efficiency improvements through automated tool development, advanced data‑management techniques, and the use of AI‑enabled workflows.
• •Domestic travel up to 10% may be required.

Qualifications You Must Have

• •BS in Mechanical or Aerospace Engineering and 10+ years of prior relevant experience, or
• •Advanced degree in a related engineering field with 7+ years of experience in mechanical design
• •U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract.

Qualifications We Prefer

• •Excellent communication, relationship‑building, and cross‑functional collaboration skills
• •Experience working across complex IPT and CIPT structures, including design integration roles
• •Familiarity with Agile/Scrum project management tools
• •Broad understanding of engine hardware, engineering 2D drawings, Model‑Based Definition (MBD), and manufacturing methods
• •Advanced data‑management and processing capability; experience developing smart tools or automation
• •Ability to leverage AI to accelerate engineering workflows
• •Ability to work in fast‑paced environments with strong attention to detail and deadlines
• •Proficiency with Unigraphics NX, Teamcenter, engineering standard work, SAP, Class I and II EC processes
• •ANSYS experience desired
• •Certificates or advanced training in mechanical design are highly recommended

What We Offer

Relocation Eligibility

Learn More & Apply Now!

Compression Systems Engineering (CSE)

Compression Systems Engineering is responsible for the design, development, and in service support of all fans low-pressure and high-pressure compressors for commercial and military engine models. CSE is responsible for the identification and maturation of new technologies for these products.

Technical disciplines in CSE include Project Engineering, Mechanical Design, Structural Analysis, and Product Definition.

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.

Candidates will learn more about role type and current site status throughout the recruiting process. For onsite and hybrid roles, commuting to and from the assigned site is the employee’s personal responsibility.

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 132,400 USD - 251,600 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