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Senior Mechanical Engineer Jobs in Puerto Rico (NOW HIRING)

Eaton

PLS - Sr Engineer

Arecibo, PR · On-site

$90K - $123K/yr

Serve as the senior Product Line Support Engineer for Eaton's Industrial Circuit Breaker product ... Basic Qualifications: • Bachelor's degree in Engineering ( Mechanical, Electrical , Mechatronic ...

Eaton

PLS - Sr Engineer

Arecibo, PR

$90K - $123K/yr

Serve as the senior Product Line Support Engineer for Eaton's Industrial Circuit Breaker product ... Bachelor's degree in Engineering ( Mechanical, Electrical , Mechatronic or others) from an ...

Baxter

Sr. Engineer, Packaging

Guayama, PR

As a Senior Engineer - Packaging, you will partner closely with Manufacturing, Quality, Maintenance ... Bachelor's Degree in Mechanical Engineering, Electrical Engineering, Industrial Engineering, or a ...

Pinnaql

Sr Engineer

Punta Santiago, PR · On-site

$103K - $142K/yr

... following position: * Sr Engineer Description: Independently provides and/or directs the ... Preferred: Mechanical or Chemical Engineering Competencies/Skills: * Working knowledge of ...

Pinnaql

Sr Engineer

Humacao, PR · On-site

$105K - $145K/yr

... following position: * Sr Engineer Description: Independently provides and/or directs the ... Preferred: Mechanical or Chemical Engineering Competencies/Skills: * Working knowledge of ...

Pinnaql

Sr Engineer

Manati, PR · On-site

$88K - $121K/yr

... following position: * Sr Engineer Description: Independently provides and/or directs the ... Preferred: Mechanical or Chemical Engineering Competencies/Skills: * Working knowledge of ...

Pinnaql

Sr Engineer

Humacao, PR · On-site

$105K - $145K/yr

... following position: * Sr Engineer Description: Independently provides and/or directs the ... Preferred: Mechanical or Chemical Engineering Competencies/Skills: * Working knowledge of ...

Pinnaql

Sr Engineer

Juana Diaz, PR · On-site

$101K - $139K/yr

... following position: * Sr Engineer Description: Independently provides and/or directs the ... Preferred: Mechanical or Chemical Engineering Competencies/Skills: * Working knowledge of ...

Pinnaql

Sr Engineer

Juncos, PR · On-site

$101K - $139K/yr

... following position: * Sr Engineer Description: Independently provides and/or directs the ... Preferred: Mechanical or Chemical Engineering Competencies/Skills: * Working knowledge of ...

Pinnaql

Sr Engineer

Barceloneta, PR · On-site

$88K - $121K/yr

... following position: * Sr Engineer Description: Independently provides and/or directs the ... Preferred: Mechanical or Chemical Engineering Competencies/Skills: * Working knowledge of ...

JLL

Senior Maintenance Engineer

Manati, PR

Senior Maintenance Engineer - JLL What this job involves: This strategic Senior Maintenance ... Bachelor's degree in mechanical engineering, electrical engineering, industrial engineering, or ...

Medtronic

Sr Quality Engineer

Humacao, PR

$89K - $121K/yr

The Senior Quality Engineer provides quality engineering leadership for machining and selected ... Designs or specifies inspection and testing mechanisms and equipment; conducts quality assurance ...

Medtronic

Sr Quality Engineer

Humacao, PR

$89K - $121K/yr

The Senior Quality Engineer provides quality engineering leadership for machining and selected ... Designs or specifies inspection and testing mechanisms and equipment; conducts quality assurance ...

Mentor Technical Group

Sr. Project Engineer

Juncos, PR · On-site

$96K - $125K/yr

Bachelor's degree in Packaging Engineering, Mechanical Engineering, or a related field. * 10+ years of experience in packaging engineering or a similar role. * Strong project management skills with ...

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Senior Mechanical Engineer information

What does a senior mechanical engineer do?

A senior mechanical engineer manages the research and manufacturing of mechanical devices and systems. Day to day responsibilities of a senior mechanical engineer include estimating manufacturing project costs and timelines, making recommendations on system efficiencies and safety, and performing general engineering duties such as the development and testing of machines. A senior mechanical engineer job is a leadership position and requires managerial experience and excellent communication skills.

What does a senior mechanical engineer do?

A Senior Mechanical Engineer is responsible for designing, developing, and overseeing the production of mechanical systems and devices. They lead engineering projects, solve complex technical problems, and may supervise junior engineers and other team members. Their work often involves using advanced software tools for modeling and analysis, ensuring compliance with industry standards, and communicating with clients and stakeholders. Senior Mechanical Engineers typically have several years of experience and play a key role in project planning and execution.

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

To thrive as a Senior Mechanical Engineer, you need a strong background in mechanical design, engineering analysis, and project management, usually supported by a bachelor's or master's degree in mechanical engineering and several years of industry experience. Proficiency with CAD software (such as SolidWorks or AutoCAD), FEA tools, and familiarity with relevant industry standards and certifications (like PE licensure) are typically required. Excellent problem-solving, leadership, and communication skills help you lead teams and collaborate effectively with cross-functional departments. These skills and qualifications are crucial for delivering innovative, reliable engineering solutions and successfully managing complex projects.

How does a senior mechanical engineer typically collaborate with cross-functional teams during a project?

As a Senior Mechanical Engineer, you’ll regularly work alongside professionals from disciplines such as electrical engineering, manufacturing, project management, and quality assurance. Effective collaboration involves participating in design reviews, aligning on technical requirements, and troubleshooting challenges that arise during development. You’ll often serve as a key technical liaison, ensuring that mechanical solutions integrate seamlessly with other systems and that project milestones are met on schedule. Strong communication and leadership skills are invaluable, as you’ll help guide both junior engineers and multidisciplinary teams toward shared goals.

What is the difference between Senior Mechanical Engineer vs Mechanical Designer?

AspectSenior Mechanical EngineerMechanical Designer
Required CredentialsBachelor's or Master's in Mechanical Engineering, Professional Engineer (PE) license often preferredAssociate's or Bachelor's in Mechanical Engineering or related field, certifications vary
Work EnvironmentDesign, analysis, project management, often in engineering firms or manufacturingDrafting, CAD modeling, product development, typically in design departments
Employer & Industry UsageEngineering firms, manufacturing, aerospace, automotiveProduct design companies, manufacturing, engineering consultancies

While both roles involve mechanical design, Senior Mechanical Engineers focus on project oversight, analysis, and technical leadership, whereas Mechanical Designers primarily handle CAD modeling and drafting tasks. The senior role requires more advanced credentials and experience, often with broader responsibilities in project management and engineering decisions.

How much do senior mechanical engineers get paid?

Senior mechanical engineers typically earn a median annual salary ranging from $85,000 to $130,000, depending on experience, location, and industry. They often have specialized skills in CAD software, project management, and engineering design, which can influence compensation levels.
More about Senior Mechanical Engineer jobs

What are the most commonly searched types of Mechanical Engineer jobs in Puerto Rico?

The most popular types of Mechanical Engineer jobs in Puerto Rico are:

What are popular job titles related to Senior Mechanical Engineer jobs in Puerto Rico?

For Senior Mechanical Engineer jobs in Puerto Rico, the most frequently searched job titles are:

What job categories do people searching Senior Mechanical Engineer jobs in Puerto Rico look for?

The top searched job categories for Senior Mechanical Engineer jobs in Puerto Rico are:

What cities in Puerto Rico are hiring for Senior Mechanical Engineer jobs?

Cities in Puerto Rico with the most Senior Mechanical Engineer job openings:

What are popular job titles related to Senior Mechanical Engineer jobs in PR?

For Senior Mechanical Engineer jobs in PR, the most frequently searched job titles are:

Senior Mechanical Engineer jobs near you
Infographic showing various Senior Mechanical Engineer job openings in Puerto Rico as of August 2026, with employment types broken down into 87% Full Time, 8% Part Time, 2% Temporary, 2% Contract, and 1% Nights. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution.

PLS - Sr Engineer

Eaton

Arecibo, PR • On-site

$90K - $123K/yr

Full-time

Posted 15 days ago

Eaton rating

7.8

Company rating: 7.8 out of 10

Based on 227 frontline employees who took The Breakroom Quiz

169th of 545 rated manufacturers

Job description

Eaton's ES AMER PCS division is currently seeking a PLS - Sr Engineer.
What you'll do:
PRIMARY FUNCTION:
Serve as the senior Product Line Support Engineer for Eaton's Industrial Circuit Breaker product portfolio, acting as an extension of the Technical Center organization and providing overall technical leadership for product design, performance, qualification, compliance, and lifecycle management.
This role is responsible for ensuring products consistently meet customer expectations, regulatory requirements, and business objectives while supporting the operational and strategic needs of the manufacturing facility. The Senior Engineer provides technical expertise, coaching, and leadership to manufacturing, quality, supply chain, and cross-functional teams to drive product excellence and operational performance.
The position leads sustaining engineering activities across the assigned product portfolio, serving as the primary technical authority for manufacturing operations, including assembly and feeder processes. Responsibilities include driving the resolution of product quality, yield and performance issues through structured root cause analysis and corrective implementation; and validating product design, deviations and manufacturing changes to ensure compliance with applicable standards and specifications.
Additionally, the Senior Engineer supports Value Analysis/Value Engineering (VA/VE) initiatives to achieve cost reduction objectives, collaborates on product qualification and regulatory compliance activities, and works closely with Technical Center engineering teams, Product Line Marketing, manufacturing operations, quality organizations, suppliers, and customers to support the long-term success and competitiveness of the product portfolio
ESSENTIAL FUNCTIONS:
  • Understand product requirements, applications & governing standards (UL, CSA), test procedures, and circuit breaker technology & design intent. Support documentation development such as manufacturing instruction and visual aids to support the requirements.
  • Assist with resolution of manufacturing and or production issues relating to product function to maintain compliance with requirements, standards, and specifications.
  • Acts as a liaison between Technical Center Team and Feeders Plants in handling product performance non-conformances to identify root cause corrections.
  • Evaluates materials, processes and as needed initiates engineering change request to correct, enhance, update, and improve engineering documentation to satisfy customers and manufacturers of the product.
  • Evaluate and analyze parts, material, supplier and product design deviations and changes; approve or reject them according to performance requirements.
  • Support manufacturing functions to ensure part manufacture leads to proper product design performance. Coordinates with TC Engineers and manufacturing engineers to determine opportunities for product yield improvements and cost savings.
  • Collaborate with Quality to provide product improvements and feedback to customer complaints. Utilize statistical quality tools when required to analyze data to evaluate and improve designs.
  • Supports manufacturing to ensure efficient production methods and tools are utilized effectively.
  • Supports new product or product extension launches as liaison to manufacturing facility. Actively participate and support on LEAN and EQMS initiatives
  • Comply with approved policies and processes and perform other administrative tasks as assigned.

Qualifications:
Basic Qualifications:
• Bachelor's degree in Engineering ( Mechanical, Electrical , Mechatronic or others) from an accredited institution
• 3 years of experience working in electromechanical component or systems design
• Bilingual with fluency in Spanish and English
• No relocation offered for this position.
• Must be authorized to work in USA
• May require 20% international travel.
Preferred Qualifications:
• Experience with Six-Sigma quality tools
• General knowledge of product design for cost-effective manufacture, working knowledge of regulatory standards.
• Experience with engineering computer applications. Pro/Engineer, Solid Works or similar, Excel, and computer-based simulation modeling (static stress, thermal, kinematics/dynamics, tolerances, etc.).
All positions may require participation in video and in-person interviews as part of the hiring process. All candidates will be evaluated based on job-related competencies, and all candidates' privacy rights and data security will be protected in accordance with applicable laws.
We are committed to ensuring equal employment opportunities for job applicants and employees. Our recruitment processes use balanced selection criteria and avoid unlawful discrimination against applicants on the basis of their age, colour, disability, marital status, national origin, gender, gender identity, genetic information, race or racial origin, religion, sexual orientation or any other status protected or required by law.

What Eaton employees say

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Hours and flexibility

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About Eaton

Sourced by ZipRecruiter

Industry

Electrical equipment, appliance, and component manufacturing

Company size

10,000+ Employees

Headquarters location

Cleveland, OH, US

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