Senior Mechanical Design Engineer (Onsite)

RTX; East Hartford (CT); On-site; USD 87,000 - 165,000; Full time

Benefits offered by this job

Relocation

Job summary

RTX's Pratt & Whitney unit seeks an experienced Senior Mechanical Design Engineer to support the MSEN organization. You will design external engine hardware, lead design activities, and ensure design integrity across internal teams and suppliers to deliver reliable engine components.

A STEM degree with 5+ years of relevant experience (or an advanced degree with 3+ years) is required, along with GD&T, mechanical drawings, and CAD (Siemens NX).

Qualifications

• Bachelor’s degree in a STEM discipline with 5 years of relevant engineering experience, or an advanced degree with 3 years of relevant experience.
• Experience with mechanical hardware, engineering drawings, dimensions, and GD&T.

Responsibilities

• Design and develop engine external components ( tubes, brackets, ducts, harnesses, hoses, seals, mounts ).
• Perform structural analysis of tube and bracket networks and complete complex tolerance stack‑ups.
• Lead and coordinate design engineering activities; review technical work and oversee outsourced projects.
• Ensure designs meet requirements and quality standards; present at design reviews and address stakeholder feedback.
• Support failure investigations, determine root causes, and identify process improvements.

Skills

GD&T

Mechanical hardware

Technical leadership

Education

STEM degree (Bachelor’s)

Advanced degree in related field

Tools

Siemens NX

ANSYS

Job description

Date Posted: 2026-11-09 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

RTX Overview

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 Senior Mechanical Design Engineer to support its Mechanical Systems, Externals & Nacelles (MSEN) organization. In this role, you will contribute to the development of external systems for current production commercial engine family, with responsibility for designing and analyzing complex mechanical hardware, providing technical leadership to engineering teams, and driving continuous improvement. You will support high‑quality engineering execution, ensure design integrity, and collaborate with internal and external stakeholders to deliver reliable engine hardware.

What You Will Do:

• Design and develop engine external components, including tubes, brackets, ducts, harnesses, hoses, seals, and component mounts.
• Perform structural analysis of tube and bracket networks and complete complex tolerance stack‑ups to ensure durability, fit, and function.
• Lead and coordinate design engineering activities, assign tasks, review technical work, and oversee outsourced engineering projects.
• Ensure designs meet engineering requirements and quality standards; present technical solutions at design reviews and address stakeholder feedback.
• Support failure investigations, determine root causes, recommend corrective actions, and identify opportunities to improve engineering processes and standard work.

What You Will Learn:

• Design and development of external hardware for current production commercial engine family.
• Mechanical design principles for tubes, brackets, ducts, harnesses, hoses, seals, and component mounts.
• Structural analysis and tolerance stack‑up methods for engine external systems.
• Technical leadership, design reviews, and management of outsourced engineering work.
• Failure investigation, root cause analysis, and continuous improvement practices.

Qualifications You Must Have:

• Bachelor’s degree in a Science, Technology, Engineering, or Mathematics (STEM) discipline with 5 years of relevant engineering experience, or an advanced degree in a related field with 3 years of relevant experience.
• Relevant engineering experience working with mechanical hardware, engineering drawings, dimensions, and Geometric Dimensioning and Tolerancing (GD&T).

Qualifications We Prefer:

• Bachelor’s or Master’s degree in Mechanical or Aerospace Engineering.
• Experience with CAD and solid modeling tools such as Siemens NX (UG NX) or equivalent.
• Experience with finite element analysis tools such as ANSYS or equivalent.
• Ability to work effectively with internal and external customers and cross‑functional teams.
• Knowledge of continuous improvement methodologies and tools, such as CORE or Six Sigma.

What We Offer:

• Eligible for Relocation.

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

Privacy Policy and Terms: Click on this link to read the Policy and Terms RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry‑leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.