Raytheon Technologies

Senior Principal Engineer - Lubrication Systems (Onsite)

Raytheon Technologies$132K — $251K *
Aerospace & Defense
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in Mechanical, Aerospace, Systems Engineering or related field plus 10 years of relevant engineering experience, or an advanced degree in a related field with 7 years of relevant experience.
  • Master's degree or Ph.D. preferred in Mechanical, Aerospace, Systems Engineering or related field.
  • Experience with internal flow modeling, fluid systems, lubrication systems, or propulsion systems.
  • Proficiency in Dymola, Easy5, MATLAB, Simulink or similar modeling tools for system-level simulation.
  • Strong communication skills, with ability to present technical findings effectively to stakeholders.
  • Proven leadership in managing technical teams or projects.

Responsibilities

  • Lead system-level requirements and performance assessments for engine lubrication systems.
  • Develop, execute, and validate fluid-flow system models to evaluate performance and resolve technical issues.
  • Coordinate a small team for the development and validation of lubrication systems.
  • Identify and mitigate system-level risks through data analysis and root-cause investigations.
  • Act as a senior technical authority and mentor to junior engineers, enhancing tools and methods.

Benefits

  • Eligible for relocation assistance.
Full Job Description
Date Posted:
2026-08-20
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

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.

What You Will Do:
  • 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.
  • Travel Requirement: 10% (Domestic).


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.


Qualifications You Must Have:
  • 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.


What We Offer:
  • Eligible for Relocation.


Learn More & Apply Now!

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 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 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 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.

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.

About Raytheon Technologies

Raytheon Solipsys, a wholly-owned subsidiary of the Raytheon Company, is an industry leader in the development of integrated Command and Control (C2) Network-Centric solutions for the Domestic and International DoD and Homeland Security. Through proven systems and software engineering practices, built on the invention and application of innovative technologies, they deliver the C2 infrastructure necessary to effectively control security/military forces in any environment. Their reliable solutions assure information superiority, increased shared awareness, deep sensor reach, aircraft control, air defense, disaster management, and time-critical decision making.

Raytheon Technologies Careers

Join the innovative world of Raytheon Technologies, a leader in aerospace and defense, where we offer unparalleled job opportunities in an environment that champions diversity, leadership, and professional growth.

Work You’ll Do

At Raytheon Technologies, you’ll be part of a company that values innovation and leadership. Our team is dedicated to solving some of the most complex challenges in aerospace and defense, making significant impacts worldwide. With a culture that fosters diversity and inclusion, you will collaborate with some of the brightest minds in the industry.

Transform Your Career

Step into a role that harnesses your skills and propels your career to new heights. Raytheon Technologies is not just about thinking big but making those big ideas happen. We provide robust career development opportunities that include comprehensive training and development programs, leadership workshops, and continuous learning through our internal platforms.

Innovate and Lead

Join our team of over 60,000 professionals globally, who are not only experts in their fields but are also driven by a passion for innovation and excellence. At Raytheon Technologies, you are positioned at the forefront of the industry, where your work directly contributes to groundbreaking advancements in technology and defense.

Internship and Employment Opportunities

Whether you’re starting your career or looking to advance, Raytheon Technologies offers a range of employment and internship opportunities that can help you achieve your professional goals. Our internships provide a solid foundation of skills and experiences, while our full-time positions offer a path to personal and professional growth within the company.

Benefits and Culture

Our employees enjoy a competitive package of benefits and rewards that reflect their invaluable role in our company. From health and wellness programs to performance bonuses and flexible working conditions, we ensure our team members are well taken care of.

Networking and Professional Development

At Raytheon Technologies, networking and professional development are part of our DNA. We encourage our employees to engage in internal and external networking events, leadership training, and diversity initiatives that enhance their career journey.

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Learn more about Raytheon Technologies
Size
14,771 employees
Market Cap
$32,494
Industry
Founded
1922
NASDAQ

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