Test System Engineer - Principle Engineering, Mechanical Design (Onsite)

Date Posted: 2026-10-19



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 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.

What You Will Do

Development Operations is seeking a Principal Mechanical Design Engineer to join the Test Systems Engineering (TSE) Family. TSE is responsible for the design of new mechanical, electrical, and physical infrastructure systems required to meet test objectives for research and development of jet engines and component testing within Pratt & Whitney’s Development Operations. The Principal Engineer will contribute to a portfolio of commercial and military programs, as well as capital infrastructure improvement initiatives. This role demands strong proficiency in mechanical design, product definition, and manufacturing to produce engine and rig adaptive systems that simulate aircraft conditions such as engine inlets, exhausts, mounts, liquid and gaseous systems, cooling and heating carts, and overall test stand configuration and construction. Typical project execution includes interpreting project requirements, developing conceptual designs, performing detailed engineering analyses, and producing high‑quality product definition deliverables. Projects must be executed with a strong focus on safety, code compliance, budget, schedule, feasibility, and environmental considerations. The Principal Engineer will also collaborate closely with BOM CIPTs, Test Operations, FCS, and Data Recording departments to ensure smooth STE integration.

The ideal candidate is a proactive, customer‑focused self‑starter who brings strong organizational skills and the confidence to communicate technical concepts to audiences. They will play a key leadership role—guiding teams, ensuring collaboration, and solving complex design issues.

• Work closely with cross-functional teams Test Operations, CIPTs, and regulatory departments to develop and refine requirements that clearly define the design objectives of Special Test Equipment.
• Develop complex design solutions independently or while leading multidisciplinary teams of design engineers.
• Partner closely with civil/structural, electrical, and project engineering teams to deliver practical, cost‑effective solutions that meet program objectives.
• Openly communicate within and outside of the Test Systems Engineering department to progress STE design and competently discuss and demonstrate the capabilities of the design.
• Lead and support technical design reviews with stakeholders and chief engineers.
• Create professionally executed product definition documentation, including drawings and models.
• Generate assembly documentation and actively lead field verification and validation plans to ensure the equipment’s compliance with design requirements.
• Provide coaching and mentoring to junior engineers.
• Incorporate Engineering Standard Work (ESW) into everyday design practices.
• Support occasional domestic travel (up to 10%) for site coordination and project execution.

Qualifications You Must Have

• Bachelor degree in Engineering 
• 8 years of engineering experience or An Advanced degree with 5 years of engineering experience
• 5 years of experience in design engineering

• U.S. Citizen - U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract.

Qualifications We Prefer

• Advanced degree in Mechanical Engineering
• Professional Licensure: Active EIT (Engineer in Training) certification or PE (Professional Engineer) license
• Experience with modern digital engineering tools, including Siemens NX, Teamcenter, ANSYS Workbench, STAAD.Pro, Datacor (previously AFT), AutoPIPE, and AutoCAD
• Experience with ASME B31.1, B31.3, and BPVC for industrial plumbing design
• Knowledge of industrial piping materials, valves, fittings, and fabrication methods.
• Familar with structural stress analysis, computational flow analysis, and thermodynamic analysis
• Experience in GD&T principles and tolerance stack-up calculations
• Familiar with Model‑Based Definition techniques
• Communication, technical writing, and presentation skills
• Experience with gas turbine special test equipment and facilities
• OSHA 510 or equivalent certification
• Ability to obtain or maintain a US Government Security Clearance

What We Offer:

• Employee Scholar Program

Learn More & Apply Now!

• Development Operations provides services to support future products for global commercial airlines, industrial partners and military customers. Services include Assembly, Instrumentation and Test of engines and rigs and the associated facilities, hardware, data systems, software and technology to support this. Development Operations delivers our services in a safe, efficient and sustainable environment.

What Is My Role Type: In addition to transforming the future of flight, we are also transforming how and where we work. We’ve introduced role types to help you understand how you will operate in our blended work environment. This role is:

• 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.

This requisition is eligible for an employee referral award.  ALL eligibility requirements must be met to receive the referral award.

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 107,500 USD - 204,500 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.

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