Senior Mechanical Systems Design Engineer; Onsite

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 Senior Mechanical Systems Design Engineer. In this role, you will support our Mechanical Systems, Externals, & Nacelles (MSEN) Engineering organization through planning and execution of design tasks, upward communication of status/risks, and mentoring of team members.

• Execute design subtask work independently for Subject Matter Expert (SME) review and approval, while providing technical guidance to P1/P2 engineers and Outsourcing.
• Help define the schedule, risks, and opportunities for Design technical path for sub-tasks and drive them to closure.
• Execute with urgency to provide recommended disposition to SME for customer fleet issues.
• Coordinate with PD on redline updates and ensure clear, timely communication of handoffs.
• Make independent design decisions using Design Discipline skills, hardware knowledge, and analysis outputs to shape part designs.
• Provide design to SME for their review.
• Contribute to Engineering Knowledge System (EKS) content updates.
• Support engine builds and teardowns and Engine Centers and Maintenance, Repair, and Overhaul (MRO) sites.
• Travel up to 20% (Domestic and International).

• Strengthen technical depth in key Design Discipline areas, including influencing small assembly design, understanding manufacturing/drawing relationships, and gapping.
• Engage cross‑disciplinary teams, including system-level impacts and integrating structural, thermal, and secondary‑flow inputs.
• Integrate components within a Bearing Compartment, including complex castings, forgings, machinings, bearings, carbon seals, and secondary seals.
• Integrate design needs across multiple hardware types and neighboring module centers.
• Communicate effectively with System Integrated Product Team (SIPT), Component Integrated Product Team (CIPT), and discipline chiefs, including presenting risks and mitigations.
• Mentor junior engineers (P1/P2) and oversee calculations, layouts, and technical development.
• Independently plan and execute the technical path for medium-scale sub-tasks.

• A Bachelor’s degree in Mechanical Engineering or a related field and 5 years of relevant experience; or an Advanced degree in a related field and 3 years of relevant experience.
• Relevant experience in mechanical design engineering with a proven track record of delivering successful projects.

• 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., Solid Works, AutoCAD, or similar).
• Strong understanding of engineering principles, materials, and manufacturing processes.

Eligible for Relocation.

The salary range for this role is 86,800 USD - 165,200 USD.

• Medical
• Dental
• Vision
• Life insurance
• Short-term disability
• Long-term disability
• 401(k) match
• Flexible spending accounts
• Flexible work schedules
• Employe…