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Senior Engineer Jobs in Puerto Rico (NOW HIRING)

Kelly Services

Sr Engineer

Juncos, PR · On-site

$45/hr

We're seeking a Sr Engineer to work at a premier pharmaceutical/biotechnology industry leader industry in Juncos, PR. Salary: $45.00 hr - W2 Shift: 8hrs shift | Administrative - with work schedule ...

Biopharma-Consulting-Jad-Group

Sr. Engineer

Juncos, PR · On-site

$110 - $170/hr

The Sr. Engineer independently leads and directs process optimization, troubleshooting, and engineering activities across operations, manufacturing, pilot plant, and capital project environments.

BioPharma Consulting JAD Group

Senior Engineer

Juncos, PR · On-site

$95 - $135/hr

The Senior Engineer independently leads and directs the characterization of process optimization strategies and troubleshooting of operational issues across manufacturing, operations, pilot plant ...

BioPharma Consulting JAD Group

Sr. Engineer

Juncos, PR · On-site

$101K - $139K/yr

The Sr. Engineer independently leads and directs process optimization, troubleshooting, and engineering activities across operations, manufacturing, pilot plant, and capital project environments.

BioPharma Consulting JAD Group

Sr. Engineer

Juncos, PR · On-site

$120 - $180/hr

The Sr. Engineer independently leads and directs process optimization, troubleshooting, and engineering activities across operations, manufacturing, pilot plant, and capital project environments.

ProSidian Consulting

PR · On-site

ProSidian.com ProSidian Seeks a Senior Engineer Specialist | Civil/Transportation Engineer (FTAA1) | Key Personnel | Engineer / Scientist IV - Exempt 541611 located: DOT Federal Transit ...

QRC Group, LLC

Sr. Engineer

Juncos, PR · On-site

$120 - $160/hr

Juncos, Puerto Rico | Posted on 08/05/2026 We are seeking a Sr. Engineer that provides and/or directs the characterization of process optimization strategies and/or troubleshooting of operational ...

Validation & Engineering Group, Inc.

Sr Engineer

Humacao, PR · On-site

$105K - $145K/yr

We are seeking a talented, dedicated individual committed to work under the highest ethics standards for the following position: * Sr Engineer Description: Independently provides and/or directs the ...

Validation & Engineering Group Inc.

Sr Engineer

Juana Diaz, PR · On-site

$101K - $139K/yr

We are seeking a talented, dedicated individual committed to work under the highest ethics standards for the following position: * Sr Engineer Description: Independently provides and/or directs the ...

Validation & Engineering Group, Inc.

Sr Engineer

Manati, PR · On-site

$88K - $121K/yr

We are seeking a talented, dedicated individual committed to work under the highest ethics standards for the following position: * Sr Engineer Description: Independently provides and/or directs the ...

Validation & Engineering Group, Inc.

Sr Engineer

Juncos, PR · On-site

$101K - $139K/yr

We are seeking a talented, dedicated individual committed to work under the highest ethics standards for the following position: * Sr Engineer Description: Independently provides and/or directs the ...

Validation & Engineering Group, Inc.

Sr Engineer

Humacao, PR · On-site

$105K - $145K/yr

We are seeking a talented, dedicated individual committed to work under the highest ethics standards for the following position: * Sr Engineer Description: Independently provides and/or directs the ...

Validation & Engineering Group, Inc.

Sr Engineer

Juncos, PR · On-site

$101K - $139K/yr

We are seeking a talented, dedicated individual committed to work under the highest ethics standards for the following position: * Sr Engineer SUMMARY Independently provides and/or directs the ...

Validation & Engineering Group, Inc.

Sr Engineer

Juncos, PR · On-site

$101K - $139K/yr

We are seeking a talented, dedicated individual committed to work under the highest ethics standards for the following position: * Sr Engineer C&Q Strategy & Planning * Develop and implement the ...

Nutanix

PLS - Sr Engineer

Arecibo, PR · On-site

$90 - $120/hr

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 ...

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 portfolio, acting as an extension of the Technical Center organization and providing overall technical ...

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 portfolio, acting as an extension of the Technical Center organization and providing overall technical ...

QRC Group, LLC

Sr Engineer

Juncos, PR · On-site

$90 - $150/hr

Juncos, Puerto Rico We are seeking Sr Engineer with experience in Medical Devices or Pharma industry. Duties: * Develop and implement the overall Commissioning & Qualification strategy aligned with ...

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All JobsEngineer JobsSenior Engineer JobsSenior Engineer Jobs in Puerto Rico

Senior Engineer information

What is a senior engineer?

Senior engineers develop and design software programs and applications, but are designated senior because they have more extensive knowledge and years of experience than other engineers on their team. As a senior engineer, you work closely with company managers to ensure the software is created to the required specifications and must troubleshoot issues with applications when they arise. Most senior engineers have mastered a specific set of programming languages, databases, and operating systems.

What is a senior engineer?

A Senior Engineer is an experienced professional responsible for designing, developing, and overseeing complex engineering projects. They often lead teams, mentor junior engineers, and ensure that technical solutions meet organizational goals and industry standards. Senior Engineers are typically experts in their field, possessing advanced problem-solving skills and a deep understanding of relevant technologies and methodologies. Their role also often involves collaborating across departments, managing timelines, and contributing to strategic planning.

How does a senior engineer typically mentor junior team members, and what impact does this have on the team's success?

Senior Engineers often play a key role in mentoring junior developers by providing guidance on technical challenges, reviewing code, and sharing best practices. This mentorship helps foster a collaborative environment where less-experienced team members can develop their skills more rapidly. As a result, the entire team benefits from improved code quality, faster problem-solving, and a culture of continuous learning. Senior Engineers also help set standards and encourage professional growth, which contributes to the overall success and cohesion of the engineering team.

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

To thrive as a Senior Engineer, you need advanced technical expertise in your engineering discipline, a relevant degree, and several years of industry experience. Familiarity with project management software, CAD tools, and compliance with engineering standards or certifications like PE (Professional Engineer) is typically required. Critical thinking, leadership, and effective communication are essential soft skills for mentoring teams and managing complex projects. These skills and qualities ensure successful project delivery, innovation, and strong team performance within engineering environments.

What is the difference between Senior Engineer vs Mechanical Engineer?

AspectSenior EngineerMechanical Engineer
Required CredentialsBachelor's degree in engineering; often a master's; professional engineering license (PE) preferredBachelor's degree in mechanical engineering; PE license optional but advantageous
Work EnvironmentDesign, development, project management; leadership rolesDesign, analysis, testing, manufacturing
Industry UsageUsed across engineering sectors for experienced professionalsEntry to mid-level engineering roles in manufacturing, automotive, aerospace

Senior Engineers typically have more experience, leadership responsibilities, and advanced credentials compared to Mechanical Engineers. While Mechanical Engineers focus on design and analysis, Senior Engineers often oversee projects and mentor teams, making them suitable for higher-level roles within engineering teams.

More about Senior Engineer jobs

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

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

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

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

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

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

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

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

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

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

Senior Engineer jobs near you
Infographic showing various Senior Engineer job openings in Puerto Rico as of June 2026, with employment types broken down into 93% Full Time, 4% Part Time, 1% Temporary, and 2% Contract. Highlights an 90% Physical, 4% Hybrid, and 6% Remote job distribution.

Sr Engineer

Kelly Services

Juncos, PR • On-site

$45/hr

Full-time

Medical, Dental, Vision, Life, Retirement

Re-posted 21 days ago

Key responsibilities

  • Lead process optimization, troubleshooting, and engineering initiatives.

  • Design and implement system modifications, experiments, and projects.

  • Support validation activities, including protocol development and execution.

Job description

Kelly® Engineering have the opportunity for those who want to keep growing, learning, and evolving.  
We’re seeking a Sr Engineer to work at a premier pharmaceutical/biotechnology industry leader industry in Juncos, PR. 
Salary: $45.00 hr - W2
Shift: 8hrs shift | Administrative - with work schedule flexibility as required to support 24/7 operations, requiring occasional after-hours engineering coverage.

Requirements:

  • Bachelor degree in Engineering and 4 years of Engineering experience. (preferred Mechanical, Electrical or Industrial Engineering disciplines ).
  • Experience with automated and manual inspection equipment and maintenance practices
  • Knowledge of inspection technologies for parenteral products and glass containers
  • Ability to apply advanced and standard engineering principles for system improvements and project execution
  • Experience improving equipment reliability and operational performance
  • Ability to lead and support technical teams (Mechanics, Automation, IS)
  • Basic knowledge of validation, GMP documentation, and protocol execution
  • Experience working with cross-functional teams (manufacturing, QA, validation, facilities, etc.)
  • Strong technical communication skills (English & Spanish)

The Sr Engineer will be responsible for: Lead process optimization, troubleshooting, and engineering initiatives. Design and implement system modifications, experiments, and projects. Analyze and present technical data and engineering solutions. Collaborate with cross-functional teams (manufacturing, QA, validation, etc.). Support validation activities, including protocol development and execution. Enhance equipment reliability, performance, and efficiency. Coordinate with technical teams and external partners. Drive design engineering efforts and system improvements
Support projects to meet schedule, budget, and quality targets

Kelly® Engineering PR Offers!

  • Exposure to a variety of career opportunities as a result of our expansive network of client companies
  • Career guides, information and tools to help you successfully position yourself throughout every stage of your career 
  • Access to more than 3,000 online training courses through our Kelly® Learning Center
  • Bi-Weekly pay by W-2
  • Vacations, Sick & Holidays paid*
  • Christmas bonus*
    • *Must comply with minimum established requirements to qualify.

Helping you discover what’s next in your career is what we’re all about, so let’s get to work. 
Apply to be a Sr Engineer today!
Lilly Abouomar 9395454792
#SETTPuertoRico


As part of our promise to talent, Kelly supports those who work with us through a variety of benefits, perks, and work-related resources. Kelly offers eligible employees voluntary benefit plans including medical, dental, vision, telemedicine, term life, whole life, accident insurance, critical illness, a legal plan, and short-term disability. As a Kelly employee, you will have access to a retirement savings plan, service bonus and holiday pay plans (earn up to eight paid holidays per benefit year), and a transit spending account. In addition, employees are entitled to earn paid sick leave under the applicable state or local plan. Click here for more information on benefits and perks that may be available to you as a member of the Kelly Talent Community.

Why Kelly® Engineering?

Your engineering skills are in demand, but how do you find the right fit? Easy. At Kelly Engineering, our team creates expert talent solutions to solve the world’s most critical challenges. We connect you with leading organizations where you can collaborate on innovative projects, work with cutting-edge technologies and accelerate your growth. Whether you prefer the variety and flexibility of short-term projects or are looking for a long-term opportunity, we’re here to guide you to the next step in your engineering career.

About Kelly

Work changes everything. And at Kelly, we’re obsessed with where it can take you. To us, it’s about more than simply accepting your next job opportunity. It’s the fuel that powers every next step of your life. It’s the ripple effect that changes and improves everything for your family, your community, and the world. Which is why, here at Kelly, we are dedicated to providing you with limitless opportunities to enrich your life-just ask the 300,000 people we employ each year.
Kelly is committed to providing equal employment opportunities to all qualified employees and applicants regardless of race, color, sex, sexual orientation, gender identity, religion, national origin, disability, veteran status, age, marital status, pregnancy, genetic information, or any other legally protected status, and we take affirmative action to recruit, employ, and advance qualified individuals with disabilities and protected veterans in the workforce. Requests for accommodation related to our application process can be directed to the Kelly Human Resource Knowledge Center. Kelly complies with the requirements of California’s state and local Fair Chance laws. A conviction does not automatically bar individuals from employment. Kelly participates in E-Verify and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S.
Kelly may use AI-powered tools during the recruitment and hiring process. For full details, including how Kelly uses AI, your rights, and how to request a reasonable accommodation, visit the Recruitment Artificial Intelligence Notice.