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Mechanical System Engineer Jobs in Puerto Rico (NOW HIRING)

PR · On-site

Key Responsibilities * Assist the Chief Engineer in the daily supervision of the Engineering and ... Air conditioning and refrigeration, Electrical and mechanical systems, Pneumatic/electronic systems ...

PR · On-site

ABOUT THE ROLE The Facilities Engineer SME serves as the technical authority for facility design across mechanical, electrical, plumbing, fire safety, and structural systems, providing subject-matter ...

... other system components. * Interaction with peers and mentors on the individual's projects is ... Bachelor Science or Bachelor Engineering, Electrical, Software, or Mechanical Engineering.

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Mechanical System Engineer information

What is the difference between Mechanical System Engineer vs Mechanical Design Engineer?

AspectMechanical System EngineerMechanical Design Engineer
Primary FocusDeveloping and integrating mechanical systems within larger projectsCreating detailed mechanical component and product designs
Work EnvironmentSystems integration, testing, and validation in manufacturing or engineering firmsDesign studios, CAD modeling, and prototype development
Required CredentialsBachelor's in Mechanical Engineering, relevant certificationsBachelor's in Mechanical Engineering, CAD certifications

Mechanical System Engineers focus on integrating and managing entire mechanical systems, while Mechanical Design Engineers concentrate on designing specific components. Both roles often collaborate but serve different stages of product development and system integration.

What are the key skills and qualifications needed to thrive as a mechanical system engineer, and why are they important?

To thrive as a Mechanical System Engineer, you need a solid background in mechanical engineering principles, system design, and problem-solving, typically supported by a bachelor's degree in mechanical engineering or a related field. Familiarity with CAD software (such as SolidWorks or AutoCAD), simulation tools, and industry certifications like PE (Professional Engineer) are often required. Strong analytical thinking, teamwork, and effective communication skills help distinguish top performers in this role. These skills ensure efficient design, implementation, and maintenance of complex mechanical systems, leading to reliable project outcomes and innovation.

What does a mechanical system engineer do?

A Mechanical System Engineer designs, develops, and oversees the installation and maintenance of complex mechanical systems in various industries. Their work often involves integrating mechanical components with electrical and software systems to ensure the overall functionality and efficiency of machines or equipment. They may be responsible for tasks such as performing simulations, analyzing system performance, troubleshooting issues, and collaborating with multidisciplinary teams. Mechanical System Engineers play a critical role in industries like automotive, aerospace, manufacturing, and energy. Their expertise ensures that mechanical systems operate safely, reliably, and efficiently.

What are some common challenges mechanical system engineers face when working on multidisciplinary projects?

Mechanical System Engineers often collaborate closely with electrical, software, and civil engineers on multidisciplinary projects. A common challenge is ensuring effective communication between teams, as each discipline may use different technical language and have varying priorities. Managing integration issues and aligning timelines across departments can also be demanding. To overcome these challenges, Mechanical System Engineers typically participate in regular cross-functional meetings and use collaborative project management tools to ensure alignment and successful project delivery.
What are popular job titles related to Mechanical System Engineer jobs in Puerto Rico? For Mechanical System Engineer jobs in Puerto Rico, the most frequently searched job titles are:
What job categories do people searching Mechanical System Engineer jobs in Puerto Rico look for? The top searched job categories for Mechanical System Engineer jobs in Puerto Rico are:
What cities in Puerto Rico are hiring for Mechanical System Engineer jobs? Cities in Puerto Rico with the most Mechanical System Engineer job openings:
Infographic showing various Mechanical System Engineer job openings in Puerto Rico as of August 2026, with employment types broken down into 1% As Needed, 82% Full Time, 12% Part Time, 2% Temporary, and 3% Contract. Highlights an 93% Physical, 2% Hybrid, and 5% Remote job distribution.

Principal Structural Engineer, Mechanical Systems, Externals and Nacelle (MSEN) (Hybrid)

Pratt & Whitney

Aguadilla, PR • Hybrid

Full-time

Posted 14 days ago


Pratt & Whitney rating

8.7

Company rating: 8.7 out of 10

Based on 155 frontline employees who took The Breakroom Quiz

18th of 72 rated aerospace companies


Job description

Date Posted:

2026-07-28

Country:

United States of America

Location:

US-PR-AGUADILLA-110 ~ Rd 110 N Km 28.8 ~ RD110

Position Role Type:

Hybrid

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:

None/Not Required

At RTX, the world 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.

What You Will Do

Pratt & Whitney’s Mechanical Systems, Externals and Nacelles (MSEN) engineering module is seeking a highly motivated Principal Structures Engineer. In this role, you will play a key part in analyzing and optimizing innovative development and production solutions for the world’s most advanced aircraft engines. You will collaborate across design, project, process, product definition, maintenance, overhaul, and repair engineering disciplines.

  • Perform structural analysis of both Externals and Mechanical systems hardware through both preliminary & detailed design, validation, certification, and support of manufacturing and operational service.

  • Collaborate as the structures subject-matter expert on multi-discipline integrated product teams providing design solutions that balance customer requirements for durability, performance, cost and weight.

  • Validation test coverage (both engine and rig) consisting of live monitoring of instrumentation response relative to applicable limits, post processing test data, and evaluation of test data relative to program requirements.

  • Brings expert knowledge to in-service field investigations while coaches, reviews, and delegates work to lower-level professionals.

  • Use Finite Element Analysis and classical methods for strength, stress/deflection, vibration, fatigue life, and damage tolerance.

  • Work to advance technology and improve engineering standard work processes/methods while influences others regarding policies, practices and procedures.

  • Document analysis results and present conclusions to leaders and customers.

  • English (read, write, speak) is required when communicating with customers, co-workers, or supervisors who only speak English.

  • Travel is up to 10%

Qualifications You Must Have

  • Bachelor’s degree in Mechanical, Aerospace, or Civil Engineering.

  • 8 years of engineering experience, or an Advanced degree with 5 years of experience.

  • Structural engineering background with proficiency in Finite Element Analysis, ANSYS, Workbench, and classical analytical methods.

Qualifications We Prefer

  • Master's Degree in Mechanical Engineering or Aerospace Engineering

  • Experience with application of mechanical statics, strength of materials, and machine design theories.

  • Experience with Aerospace structures and/or components.

  • Experience with ANSYS Workbench or equivalent software.

  • Working knowledge of NX or equivalent modeling software.

  • Experience with GD&T (Geometric Dimensioning & Tolerancing).

  • Experience with Teamcenter and writing engineering reports.

What We Offer:

  • Employee Scholar Program

Learn More & Apply Now!

What Is My Role Type: In addition to transforming the future of flight, we are also transforming how and where we work. We’ve introduced role types to help you understand how you will operate in our blended work environment. This role is:

  • Hybrid: Employees who are working in Hybrid roles will work regularly both onsite and offsite. This means that responsibilities of the job need to be performed onsite on a regular basis.

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.

This requisition is eligible for an employee referral award.  ALL eligibility requirements must be met to receive the referral award.

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


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About Pratt & Whitney

Sourced by ZipRecruiter

Pratt & Whitney has a long history of leadership and innovation in the field of aviation propulsion. Our story begins in the 1920s and has flourished throughout the decades. We have continuously transformed and reinvented our businesses to offer superior products and services to our customers. In 1925, the Pratt & Whitney Aircraft Company was founded by Frederick B. Rentschler, pioneer of the air-cooled radial engine design which enabled unprecedented power-to-weight ratio. Its first engine, the R-1340 Wasp engine, transformed military and commercial aviation and is still in use today. In 1928, the Canadian division of the Pratt & Whitney Aircraft Company was established. In 1944, Pratt & Whitney began its gas turbine and jet propulsion initiative. The company constructed a wind tunnel, laboratory and engineering center to support our allies’ efforts in World War II. In 1945, wartime production included more than 300,000 Pratt & Whitney engines, touted by service members as extremely dependable – a legacy that continues today. From there, Pratt & Whitney continued to design and innovate more powerful, agile, and reliable engines becoming a leader in the aerospace industry. Today, Pratt & Whitney has more than 85,000 engines in service and more than 16,000 customers worldwide.

Industry

Engineering professional services

Company size

10,000+ Employees

Headquarters location

East Hartford, CT, US

Year founded

1925