Principal Design Engineer - Mechanical Systems (Onsite)

Date Posted: 2026-07-10 Country: United States of America Location: US-CT-EAST HARTFORD-ETC ~ 400 Main St ~ BLDG ETC 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 is seeking a Principal Design Engineer – Mechanical Systems to join its Mechanical Systems, Externals, & Nacelles (MSEN) Engineering organization. In this highly visible technical leadership role, you will serve as the Design Lead and primary engineering liaison to the Customer Integrated Product Team (CIPT), driving design execution, schedule adherence, and successful delivery of engineering commitments. You will be accountable for coordinating cross-functional design activities, ensuring timely completion of technical deliverables, and proactively managing design risks. As the focal point for major technical issues within the CIPT, you will collaborate closely with the Integrated Program Management Team (IPMT), System Integrated Product Team (SIPT), Chief Engineers, and customers to communicate progress, mitigate risks, and deliver innovative, high-quality engineering solutions. What You Will Do: Identify, plan, and execute tasks with full cross‑functional integration, including managing medium‑scale projects. Execute with urgency to disposition customer fleet issues. Provide consultation to Engineering Support to Operations (ESTO) in resolving manufacturing & assembly issues. Mentor and coach engineers, influencing large tasks and resource planning. Contribute to and create Engineering Knowledge System (EKS) content, including updates to discipline tools and standards. Support engine builds and teardowns and Engine Centers and Maintenance, Repair, and Overhaul (MRO) sites. Travel up to 20% (Domestic and International). What You Will Learn: Integrate components within a Bearing Compartment, including complex castings, forgings, machinings, bearings, carbon seals, and secondary seals. Integrate design needs across multiple hardware types, program phases, and neighboring module centers. Drive forward‑thinking decision‑making, including shaping system‑level design impacts and gapping. Advance leadership skills in guiding medium‑sized cross‑functional teams and influencing project direction. Coach others effectively—overseeing technical work, communicating expectations, and improving team capability. Discipline tools, EKS content, and Product Development partnership jointly drive high‑quality drawing release and design execution. Qualifications You Must Have: A Bachelor’s degree in Mechanical Engineering or a related field and 8 years of relevant experience; or an Advanced degree in a related field and 5 years of relevant experience. Relevant experience in mechanical design engineering with a proven track record of delivering successful projects.  Qualifications We Prefer: Proven track record of mentoring and providing strategic technical guidance to engineers to elevate team performance and accelerate skill development, including oversight of calculations, layouts, and EKS. Experience with Design or Modeling of Bearings, Carbon Seals, complex Castings, Machinings, and Forgings. Experience in Lubrication Systems or Thermal Management Systems (TMS). Excellent problem-solving skills and the ability to work collaboratively in a team environment. Capability to independently execute multiple tasks, lead projects, and support resource planning with strong decision‑making ability using hardware understanding, analysis, interpretation, and system‑level awareness.  Proficiency in CAD software (e.g., SolidWorks, AutoCAD, or similar).  Strong understanding of engineering principles, materials, and manufacturing processes.     What We Offer: Eligible for Relocation. Learn More & Apply Now! Department/Segment Overview : Mechanical Systems, Externals, & Nacelles (MSEN) : The MSEN organization is responsible for the design, development, and in-service support of power transmission systems, bearing compartment and rotor support design and analysis, oil and thermal management systems, engine externals packaging and architecture, as well as nacelles for commercial and military engine models. Technical disciplines include Project Engineering, Mechanical Design, Structural Analysis, Product Definition, System Modeling, Mechanical Design analysis for bearings, gears, and seals, and fluid-thermal modeling of associated components and systems. 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 the 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 hi