Senior Principal Engineer - Lubrication Systems (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. Pratt & Whitney is a world leader in the design, manufacture and service of aircraft engines and auxiliary power systems, revolutionizing modern flight for over 100 years.

About the role

Pratt & Whitney is seeking a Senior Principal Engineer to join our Mechanical Systems, Externals, & Nacelles (MSEN) organization. In this role, you will serve as the technical authority for our engine lubrication system, providing technical leadership across requirements, system modeling, validation, risk retirement, and the development of a small engineering team.

This position is onsite in East Hartford, CT. U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract. Travel requirement: 10% (Domestic).

Responsibilities

• Lead system-level requirements, interfaces, and performance assessments for engine lubrication systems, coordinating with analysis teams, component owners, and customers to allocate requirements, resolve interfaces, and maintain system compliance throughout the development lifecycle.
• Develop, execute, and validate steady-state and transient fluid-flow system models using Dymola, Easy5, MATLAB, Simulink, or comparable tools to evaluate system performance, support design decisions, and resolve technical issues across development and in-service engine programs.
• Lead a small technical team through the development and validation of new or upgraded lubrication systems, coordinating technical activities, design reviews, engine/test-rig validation, data analysis, and delivery of results in support of program milestones.
• Lead system-level risk identification, root-cause investigations, and technical problem resolution by analyzing engine and test data, executing system models, communicating findings, and driving mitigation strategies to closure.
• Serve as a senior technical authority and mentor by guiding engineers, improving analytical tools and methods, managing system status to requirements, and presenting technical findings and recommendations to engineering leadership, customers, and cross-functional teams.

What You Will Learn

• Gain advanced experience in engine lubrication system architecture, requirements management, and system integration.
• Develop expertise in fluid-flow system modeling and simulation using Dymola, Easy5, MATLAB, and Simulink.
• Gain experience with engine and test-rig validation, test-data analysis, model correlation, and technical reporting.
• Strengthen technical leadership, mentoring, risk management, and cross-functional collaboration skills.
• Gain exposure to complex aerospace engine development programs, customer interactions, technical reviews, and next-generation propulsion technologies.

Requirements

• Bachelor's degree in Mechanical Engineering, Aerospace Engineering, Systems Engineering, or a related field and 10 years of relevant engineering experience, or an advanced degree in a related field and 7 years of relevant engineering experience.

Qualifications We Prefer

• Master's degree or Ph.D. in Mechanical Engineering, Aerospace Engineering, Systems Engineering, or a related field.
• Experience with internal flow modeling, fluid systems, lubrication systems, or propulsion systems.
• Experience using Dymola, Easy5, MATLAB, Simulink, or comparable system-level modeling and simulation tools, including development and validation of component models.
• Excellent written and verbal communication skills, including experience presenting technical findings to engineering leadership, customers, and cross-functional teams.
• Demonstrated experience leading technical teams, projects, or complex engineering activities.
• Willingness to obtain a U.S. government-issued security clearance.

About 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.

Pay

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.

Benefits

• 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
• Eligibility for annual short-term and/or long-term incentive compensation programs (payments not guaranteed and dependent on individual, business unit, and company performance)
• Eligible for relocation