Senior Principal Mechanical Design Engineer (Onsite)

Date Posted: 2026-10-22



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: The ability to obtain and maintain a U.S. government issued security clearance is required.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance



Security Clearance Type: DoD Clearance: Secret



Security Clearance Status: Active and existing security clearance required after day 1

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 an experienced, detail-oriented Senior Principal Mechanical Design Engineer to support Mechanical Systems hardware development across Operational Military Engine (OME) and Advanced Engine Programs (AEP). This role provides technical leadership and subject matter expertise for mechanical systems and bearing compartment hardware, coordinating design, analysis, manufacturing, and validation activities from concept through part release to meet program requirements and delivery milestones.

What You Will Do:

• Develop technically sound mechanical design solutions that meet program requirements for cost, weight, performance, quality, and schedule across operational and advanced engine configurations.

• Provide subject matter expertise and design guidance for Mechanical Systems hardware, including bearing compartment systems, ensuring integration with surrounding systems and compliance with technical requirements.
• Collaborate with Design Integrators, Design Discipline Managers, Component Integrated Product Team (CIPT) members, analytical teams, Industrial, and validation partners to coordinate workflows, resolve design challenges, and meet program milestones.
• Guide engineers through design elements of the Class 1 Engineering Changes process for applicable Operation Military Engines (OME) tasks and communicate program status, risks, and performance metrics to team leadership and management.
• Apply engineering standard work, CORE tools, and Agile methodologies to improve design processes, prioritize team workflows, coordinate design space and requirements with internal and external stakeholders, and drive tasks to completion.

Travel Requirements: 5%, Domestic.

What You Will Learn:

• Mechanical Systems hardware development across operational military and advanced engine programs.

• Design, analysis, manufacturing, and validation workflows from concept through part release.
• Mechanical Systems integration and bearing compartment design requirements.
• Application of Class 1 Engineering Changes processes, engineering standard work, and CORE continuous improvement tools.
• Agile workflow planning and cross-functional coordination using Jira and Confluence.

Qualifications You Must Have:

• A Bachelor of Science degree in Engineering and 10 years of relevant engineering experience, or an Advanced degree in Engineering and 7 years of relevant engineering experience. Relevant engineering experience leading mechanical design activities across hardware development, analysis, manufacturing, and validation phases.

Qualifications We Prefer:

• A Bachelor's or Advanced degree in Mechanical Engineering, Aerospace Engineering, or a related field.
• Experience leading mechanical design activities across hardware development, analysis, manufacturing, and validation phases.
• Demonstrated technical leadership, communication, and cross-functional collaboration skills.
• Experience with Agile project management tools, particularly Jira and Confluence.
• An active, transferable U.S. Government-issued security clearance before the start date.

What We Offer:

• Eligible for Relocation.

Learn More & Apply Now!

Department/Segment Overview: Mechanical Systems, Externals, & Nacelles (MSEN): The MSEN Engineering 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 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.

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.

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