Principal Field Service Engineer (Onsite)

Location: US-CT-EAST HARTFORD-OBF2 ~ 400 Main St ~ BLDG OBF2

 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. We're seeking a Principal Field Service Engineer to join our Commercial Engines Customer Technical Services team, supporting the global PW2000 and PW4000 engine fleet. This is a highly visible technical role where you'll partner directly with airline customers, maintenance organizations, and internal engineering teams to solve complex operational challenges, improve fleet reliability, and represent Pratt & Whitney as a trusted technical advisor.

Serve as the primary technical advisor for airline customers and Maintenance, Repair & Overhaul (MRO) facilities supporting the global PW2000 and PW4000 engine fleet, providing expertise in fan, compressor, mechanical systems, and nacelle components. Lead complex engine event investigations, perform root cause analyses, and develop technical solutions that improve fleet reliability, safety, and operational performance. Partner with cross-functional engineering, Product Safety, Certification & Validation, and airframer teams to resolve technical issues, support engine modifications, and maintain continued airworthiness. Develop and review Engineering Authorizations (EAs), Special Instructions, and maintenance documentation while contributing to updates for engine manuals and other technical publications. Provide timely technical support for Aircraft-On-Ground (AOG) events and other critical operational issues, collaborating with airline engineers, maintenance teams, and Pratt & Whitney Field Service Representatives. Identify recurring fleet trends and recommend process and product improvements that enhance customer support, engine reliability, and operational efficiency. Occasional weekend and after-hours support are required to assist with urgent customer needs and Aircraft-On-Ground (AOG) events. Approximately 5% domestic and international travel is required for customer meetings, technical conferences, and safety or operational event investigations.

The opportunity to become a recognized technical expert supporting one of the industry's most respected commercial engine platforms. Exposure to global airline operations and collaboration with customers across multiple regions. Opportunities to lead high-impact technical investigations and influence product reliability and operational excellence. Cross-functional experience working with engineering, product safety, certification, and field service organizations. Career growth within one of the world's leading aerospace and defense companies.

You Must Have: Bachelor's degree in Aerospace Engineering or Mechanical Engineering and 8 years of aerospace engineering experience; or an Advanced degree in a related field with 5 years of aerospace engineering experience.

We Prefer: Experience providing technical support to airline