$10.25 - $13.25/hr
This is a part-time role, approximately 20 per week. Company Overview Founded in 1979, Lemartec is ... Join one of the largest construction firms in the country (Engineering News-Record [ENR]: #1 in ...
$10.25 - $13.25/hr
This is a part-time role, approximately 20 per week. Company Overview Founded in 1979, Lemartec is ... Join one of the largest construction firms in the country (Engineering News-Record [ENR]: #1 in ...
$10.25 - $13.25/hr
This is a part-time role, approximately 20 per week. Company Overview Founded in 1979, Lemartec is ... Join one of the largest construction firms in the country (Engineering News-Record [ENR]: #1 in ...
PR · On-site
$10.25 - $13.25/hr
This is a part-time role, approximately 20 per week. Company Overview Founded in 1979, Lemartec is ... Join one of the largest construction firms in the country (Engineering News-Record [ENR]: #1 in ...
PR · On-site
$10.25 - $13.25/hr
This is a part-time role, approximately 20 per week. Company Overview Founded in 1979, Lemartec is ... Join one of the largest construction firms in the country (Engineering News-Record [ENR]: #1 in ...
Guayama, PR · On-site
$10.50/hr
We have an opening for part time JANITOR positions. * Location : Haleon - XV53+JM9, Guyama, PR ... Engineering, Sustainability, Janitorial & Industrial Cleaning, Laboratory Support and Workplace ...
Guayama, PR · On-site
$10.50/hr
We have an opening for part time JANITOR positions. * Location : Haleon - XV53+JM9, Guyama, PR ... Engineering, Sustainability, Janitorial & Industrial Cleaning, Laboratory Support and Workplace ...
Humacao, PR · On-site
$10.75/hr
Full and part time schedule. 2nd shift. More details upon interview. * Requirement : Janitorial ... Engineering, Sustainability, Janitorial & Industrial Cleaning, Laboratory Support and Workplace ...
Humacao, PR · On-site
$10.75/hr
Full and part time schedule. 2nd shift. More details upon interview. * Requirement : Janitorial ... Engineering, Sustainability, Janitorial & Industrial Cleaning, Laboratory Support and Workplace ...
Juncos, PR · On-site
$11/hr
Schedule : Full time and part time schedules. 1st, 2nd, and 3rd shifts available. Further details ... Engineering, Sustainability, Janitorial & Industrial Cleaning, Laboratory Support and Workplace ...
Juncos, PR · On-site
$11/hr
Schedule : Full time and part time schedules. 1st, 2nd, and 3rd shifts available. Further details ... Engineering, Sustainability, Janitorial & Industrial Cleaning, Laboratory Support and Workplace ...
Carolina, PR · On-site
$89K/yr
National Guard military (part-time) service is considered as full-time experience when evaluated ... Engineering objectives; establishing, revising, or reviewing policies, procedures, mission ...
Carolina, PR · On-site
$89K/yr
National Guard military (part-time) service is considered as full-time experience when evaluated ... Engineering objectives; establishing, revising, or reviewing policies, procedures, mission ...
$9.75 - $12/hr
... contemporary programming and digital acumen. The company utilizes industry-leading revenue ... Employment Type: PART_TIME
$9.75 - $12/hr
... contemporary programming and digital acumen. The company utilizes industry-leading revenue ... Employment Type: PART_TIME
Carolina, PR · On-site
$9.75 - $12/hr
... contemporary programming and digital acumen. The company utilizes industry-leading revenue ... Employment Type: PART_TIME
Carolina, PR · On-site
$9.75 - $12/hr
... contemporary programming and digital acumen. The company utilizes industry-leading revenue ... Employment Type: PART_TIME
Carolina, PR · On-site
... contemporary programming and digital acumen. The company utilizes industry-leading revenue ... Employment Type: PART_TIME
Carolina, PR · On-site
... contemporary programming and digital acumen. The company utilizes industry-leading revenue ... Employment Type: PART_TIME
... contemporary programming and digital acumen. The company utilizes industry-leading revenue ... Employment Type: PART_TIME
... contemporary programming and digital acumen. The company utilizes industry-leading revenue ... Employment Type: PART_TIME
Arecibo, PR · On-site
$10.50/hr
... Engineering, Sustainability, Janitorial & Industrial Cleaning, Laboratory Support and Workplace ... Full-time and part-time positions offer the following benefits to associates: Associate Shopping ...
Arecibo, PR · On-site
$10.50/hr
... Engineering, Sustainability, Janitorial & Industrial Cleaning, Laboratory Support and Workplace ... Full-time and part-time positions offer the following benefits to associates: Associate Shopping ...
We are looking for an experienced, Part-time, Air Traffic Control Instructor to join the SAIC ... ing services, and professional services. We integrate emerging technology, rapidly and securely ...
New
We are looking for an experienced, Part-time, Air Traffic Control Instructor to join the SAIC ... ing services, and professional services. We integrate emerging technology, rapidly and securely ...
New
Humacao, PR · On-site
$12.50/hr
... Engineering, Sustainability, Janitorial & Industrial Cleaning, Laboratory Support and Workplace ... Full-time and part-time positions offer the following benefits to associates: Associate Shopping ...
Humacao, PR · On-site
$12.50/hr
... Engineering, Sustainability, Janitorial & Industrial Cleaning, Laboratory Support and Workplace ... Full-time and part-time positions offer the following benefits to associates: Associate Shopping ...
$10.50/hr
... Engineering, Sustainability, Janitorial & Industrial Cleaning, Laboratory Support and Workplace ... Full-time and part-time positions offer the following benefits to associates: Associate Shopping ...
Quick apply
$10.50/hr
... Engineering, Sustainability, Janitorial & Industrial Cleaning, Laboratory Support and Workplace ... Full-time and part-time positions offer the following benefits to associates: Associate Shopping ...
Humacao, PR · On-site
$13.50/hr
... Engineering, Sustainability, Janitorial & Industrial Cleaning, Laboratory Support and Workplace ... Full-time and part-time positions offer the following benefits to associates: Associate Shopping ...
Humacao, PR · On-site
$13.50/hr
... Engineering, Sustainability, Janitorial & Industrial Cleaning, Laboratory Support and Workplace ... Full-time and part-time positions offer the following benefits to associates: Associate Shopping ...
Humacao, PR · On-site
$11.50/hr
... Engineering, Sustainability, Janitorial & Industrial Cleaning, Laboratory Support and Workplace ... Full-time and part-time positions offer the following benefits to associates: Associate Shopping ...
Humacao, PR · On-site
$11.50/hr
... Engineering, Sustainability, Janitorial & Industrial Cleaning, Laboratory Support and Workplace ... Full-time and part-time positions offer the following benefits to associates: Associate Shopping ...
Carolina, PR · On-site
$10.50 - $12/hr
... contemporary programming and digital acumen. The company utilizes industry-leading revenue ... Employment Type: PART_TIME
Carolina, PR · On-site
$10.50 - $12/hr
... contemporary programming and digital acumen. The company utilizes industry-leading revenue ... Employment Type: PART_TIME
$11.50/hr
... Engineering, Sustainability, Janitorial & Industrial Cleaning, Laboratory Support and Workplace ... Full-time and part-time positions offer the following benefits to associates: Associate Shopping ...
$11.50/hr
... Engineering, Sustainability, Janitorial & Industrial Cleaning, Laboratory Support and Workplace ... Full-time and part-time positions offer the following benefits to associates: Associate Shopping ...
... Engineering, Sustainability, Janitorial & Industrial Cleaning, Laboratory Support and Workplace ... Full-time and part-time positions offer the following benefits to associates: Associate Shopping ...
... Engineering, Sustainability, Janitorial & Industrial Cleaning, Laboratory Support and Workplace ... Full-time and part-time positions offer the following benefits to associates: Associate Shopping ...
Humacao, PR · On-site
$11.50/hr
... Engineering, Sustainability, Janitorial & Industrial Cleaning, Laboratory Support and Workplace ... Full-time and part-time positions offer the following benefits to associates: Associate Shopping ...
Humacao, PR · On-site
$11.50/hr
... Engineering, Sustainability, Janitorial & Industrial Cleaning, Laboratory Support and Workplace ... Full-time and part-time positions offer the following benefits to associates: Associate Shopping ...
Part-time engineers develop and monitor the construction of the functional aspects of a product, structure, or system for their company or client. Unlike full-time engineers, part-time engineers typically work thirty hours or less a week. Specific job duties vary, depending on their specific engineering industry. For example, civil engineers design, construct, and maintain large infrastructure projects for municipalities and other agencies, such as bridges, highways, and airports. As the structures wear down, civil engineers reevaluate the needs of the area and may redesign the current structure or create a new system. Electrical engineers draft plans for electrical systems. Once the systems are created and installed, electrical engineers may also be responsible for maintaining the system to ensure it continues to run efficiently.
| Aspect | Part Time Engineer | Contract Engineer |
|---|---|---|
| Credentials | Typically requires relevant engineering degree and certifications | Similar credentials, often with additional contractual agreements |
| Work Environment | Usually works on-site or remotely for multiple employers, flexible hours | Works on specific projects for a set duration, often on-site |
| Employer Usage | Employers hire part-time for ongoing or intermittent tasks | Employers hire contractors for project-based work |
Both Part Time Engineers and Contract Engineers share similar credentials and work environments, but differ mainly in employment structure and duration. Part Time Engineers typically work flexible hours for multiple employers, while Contract Engineers focus on specific projects for a fixed period.
The most popular types of Engineer jobs in Puerto Rico are:
For Part Time Engineer jobs in Puerto Rico, the most frequently searched job titles are:
The top searched job categories for Part Time Engineer jobs in Puerto Rico are:
Cities in Puerto Rico with the most Part Time Engineer job openings:

Process daily, weekly, and summary production reports for entry into accounting/payroll systems.
Perform data-entry duties, including verifying data and preparing materials for input and printing.
Create, update, and manage electronic project documentation and communication forms.
7.4
Based on 156 frontline employees who took The Breakroom Quiz
34th of 80 rated construction
Field Office Clerk will process daily, weekly, and summary production reports from employees and contractors for entry into the accounting/payroll systems; provide administrative support by performing data-entry duties, such as verifying data and preparing materials for input and printing. At a minimum, the position requires a good working knowledge of general office functions; proficiency with word processing and spreadsheet software, with an emphasis on Microsoft Office; the ability to use a computer and other office-related equipment; and the ability to read, understand, interpret, input, and analyze data. This is a part-time role, approximately 20 per week.
Company Overview
Founded in 1979, Lemartec is a national general contractor and construction management firm and is part of the General Building group within MasTec’s Clean Energy and Infrastructure segment.
As MasTec’s vertical construction arm, Lemartec delivers complex projects across industrial, aviation, power, and large commercial markets. Led at the segment level by Manny García-Tuñón, the General Building Operating Group represents MasTec’s vertical construction capabilities and serves as the platform for future growth in this space. As a MasTec company, Lemartec maintains international capabilities and strategic partnerships throughout the Americas and the Caribbean, enabling it to execute some of the most complex projects in the industries we serve. Through MasTec’s network of more than 22,000 professionals and subject-matter experts in Engineering, Procurement, and Construction across more than 400 locations throughout North America and the Caribbean, Lemartec is uniquely positioned to serve a diverse customer base.
With experience across all 16 construction disciplines, Lemartec combines deep technical expertise with the strength, scale, and financial backing of MasTec to successfully deliver projects of any size and complexity.
MasTec’s Clean Energy & Infrastructure (CE&I) segment generates over $4 billion in annual revenue, providing construction services across industrial, renewables, and infrastructure sectors. In infrastructure, we specialize in general heavy civil construction, underground utilities, structures, electrical work, material production, roadways, bridges, specialty pavement overlays, environmental projects, and commercial buildings. Sustainability and safety are foundational to our culture and influence everything we do.
MasTec, a minority-owned Fortune 500 company, has shaped the construction industry for more than 90 years. With over 35,000 employees and 400 offices nationwide, we provide flexibility and career growth in dynamic work environments. Join one of the largest construction firms in the country (Engineering News-Record [ENR]: #1 in Power, #17 Top 50 Domestic Heavy Contractors, #20 Transportation Contractor).
The ability to work safely, with or without supervision
The ability to follow instructions and communicate verbally and in writing.
The ability to organize workload to determine the priority of duties.
Completion of low-level tasks in support of an assigned department/project.
Create, update, validate, and forward various forms of communication to internal and external recipients.
Create and manage the electronic job folder for the Project (Procore).
Read, interpret, and input data in support of an assigned department/project.
Create and maintain contact lists for each project.
Keep track of and organize all paperwork related to the job (both hard copies and digital backup documentation)
Ensure everyone on a project is signed in daily, including all personnel, general labor, and subcontractors, if applicable.
Assist the Superintendent/PFE with line-ups and ensure that the headcount of all personnel and General
Laborers match the Master Sign-In sheets and Daily Logs each day.
Work with the Superintendent/PFE to ensure all equipment and materials are being tracked properly and accounted for in the job file.
Assist with mobilization/demobilization efforts as well as Project Closeout.
Additional Duties as assigned.
Position may be subject to pre-employment screening, which may include background check and drug testing. Accessibility: If you need accommodation as part of the employment process, contact ceicareers@mastec.com. Due to the high volume of applications received, we are unable to respond to individual requests regarding application status. Please log in to your candidate profile for up-to-date information.
MasTec, Inc. is an Equal Employment Opportunity Employer. The Company's policy is not to unlawfully discriminate against any applicant or employee on the basis of race, color, sex, sexual orientation, gender identity, religion, national origin, age, disability, genetic information, military status, or any other consideration made unlawful by applicable federal, state, or local laws. The Company also prohibits harassment of applicants and employees based on any of these protected categories. It is also MasTec's policy to comply with all applicable state, federal, and local laws regarding the consideration of unemployment status when making hiring decisions.
Disclaimer: MasTec and our Subsidiaries will never ask prospective employees for any form of payment or money transfer as part of a job application or onboarding. We do not ask prospective employees for information about credit cards or personal passwords, and we do not require applicants to purchase equipment or software. Ensure that all recruiter email addresses end in @mastec.com or @talent.icims.com. If you suspect you are the target of a scam, we advise you to contact your local law enforcement agency and report fraud at https://reportfraud.ftc.gov/.
MasTec Clean Energy & Infrastructure and our subsidiaries do not work with any third-party recruiters or agencies without a valid signed agreement and partnership with the Corporate Talent Acquisition Team.
#LI-LV1
#LI-ONSITE
Qualifications:Position may be subject to pre-employment screening, which may include background check and drug testing. Accessibility: If you need accommodation as part of the employment process, contact ceicareers@mastec.com. Due to the high volume of applications received, we are unable to respond to individual requests regarding application status. Please log in to your candidate profile for up-to-date information.
MasTec, Inc. is an Equal Employment Opportunity Employer. The Company's policy is not to unlawfully discriminate against any applicant or employee on the basis of race, color, sex, sexual orientation, gender identity, religion, national origin, age, disability, genetic information, military status, or any other consideration made unlawful by applicable federal, state, or local laws. The Company also prohibits harassment of applicants and employees based on any of these protected categories. It is also MasTec's policy to comply with all applicable state, federal, and local laws regarding the consideration of unemployment status when making hiring decisions.
Disclaimer: MasTec and our Subsidiaries will never ask prospective employees for any form of payment or money transfer as part of a job application or onboarding. We do not ask prospective employees for information about credit cards or personal passwords, and we do not require applicants to purchase equipment or software. Ensure that all recruiter email addresses end in @mastec.com or @talent.icims.com. If you suspect you are the target of a scam, we advise you to contact your local law enforcement agency and report fraud at https://reportfraud.ftc.gov/.
MasTec Clean Energy & Infrastructure and our subsidiaries do not work with any third-party recruiters or agencies without a valid signed agreement and partnership with the Corporate Talent Acquisition Team.
#LI-LV1
#LI-ONSITE
Education:UNAVAILABLEEmployment Type: PART_TIMESourced by ZipRecruiter
Construction
10,000+ Employees
Coral Gables, FL, US