$10.25 - $13.25/hr
... job file. * Assist with mobilization/demobilization efforts as well as Project Closeout ... Engineering or Accounting University Students with a GPA of at least 3.0 are highly encouraged to ...
$10.25 - $13.25/hr
... job file. * Assist with mobilization/demobilization efforts as well as Project Closeout ... Engineering or Accounting University Students with a GPA of at least 3.0 are highly encouraged to ...
PR · On-site
$10.25 - $13.25/hr
... job file. * Assist with mobilization/demobilization efforts as well as Project Closeout ... Engineering or Accounting University Students with a GPA of at least 3.0 are highly encouraged to ...
$10.25 - $13.25/hr
... job file. * Assist with mobilization/demobilization efforts as well as Project Closeout ... Engineering or Accounting University Students with a GPA of at least 3.0 are highly encouraged to ...
$10.25 - $13.25/hr
... job file. * Assist with mobilization/demobilization efforts as well as Project Closeout ... Engineering or Accounting University Students with a GPA of at least 3.0 are highly encouraged to ...
$10.25 - $13.25/hr
... job file. * Assist with mobilization/demobilization efforts as well as Project Closeout ... Engineering or Accounting University Students with a GPA of at least 3.0 are highly encouraged to ...
$10.25 - $13.25/hr
... job file. * Assist with mobilization/demobilization efforts as well as Project Closeout ... Engineering or Accounting University Students with a GPA of at least 3.0 are highly encouraged to ...
Aguadilla, PR · On-site
$59K - $77K/yr
You will partner with Senior Traders to assist and learn all facets of automated trading. From ... related student groups or clubs, and/or prior internship experience preferred * Project or ...
Aguadilla, PR · On-site
$59K - $77K/yr
You will partner with Senior Traders to assist and learn all facets of automated trading. From ... related student groups or clubs, and/or prior internship experience preferred * Project or ...
Ceiba, PR · On-site +1
$25.75 - $30.04/hr
... student loan repayments. For further information you must contact the appropriate military ... May assist higher graded inspectors, as required. PHYSICAL DEMANDS: Work is performed in tiring or ...
Ceiba, PR · On-site +1
$25.75 - $30.04/hr
... student loan repayments. For further information you must contact the appropriate military ... May assist higher graded inspectors, as required. PHYSICAL DEMANDS: Work is performed in tiring or ...
$10.25 - $13.25/hr
... job file. * Assist with mobilization/demobilization efforts as well as Project Closeout ... Engineering or Accounting University Students with a GPA of at least 3.0 are highly encouraged to ...
PR · On-site
$10.25 - $13.25/hr
... job file. * Assist with mobilization/demobilization efforts as well as Project Closeout ... Engineering or Accounting University Students with a GPA of at least 3.0 are highly encouraged to ...
San Juan, PR · On-site
$125K/yr
Retirement
The Supervisory Veterans Service Representative (Assistant Veterans Service Center Manager) shares ... community; student; social). Volunteer work helps build critical competencies, knowledge, and ...
San Juan, PR · On-site
$125K/yr
Retirement
The Supervisory Veterans Service Representative (Assistant Veterans Service Center Manager) shares ... community; student; social). Volunteer work helps build critical competencies, knowledge, and ...
San Juan, PR · On-site
$125K/yr
Retirement
The Supervisory Veterans Service Representative (Assistant Veterans Service Center Manager) shares ... community; student; social). Volunteer work helps build critical competencies, knowledge, and ...
San Juan, PR · On-site
$125K/yr
Retirement
The Supervisory Veterans Service Representative (Assistant Veterans Service Center Manager) shares ... community; student; social). Volunteer work helps build critical competencies, knowledge, and ...
$20.61/hr
The primary purpose of this position is to Assist full performance meatcutters by performing the ... student, social). Physical requirements: (1) Continuously walk, stand, bend, stoop, stretch, and ...
$20.61/hr
The primary purpose of this position is to Assist full performance meatcutters by performing the ... student, social). Physical requirements: (1) Continuously walk, stand, bend, stoop, stretch, and ...
$20.61/hr
The primary purpose of this position is to Assist full performance meatcutters by performing the ... student, social). Physical requirements: (1) Continuously walk, stand, bend, stoop, stretch, and ...
$20.61/hr
The primary purpose of this position is to Assist full performance meatcutters by performing the ... student, social). Physical requirements: (1) Continuously walk, stand, bend, stoop, stretch, and ...
Guaynabo, PR · On-site
$43K/yr
... student, social). Volunteer work helps build critical competencies, knowledge, and skills and can provide valuable training and experience that translates directly to paid employment. You will ...
Guaynabo, PR · On-site
$43K/yr
... student, social). Volunteer work helps build critical competencies, knowledge, and skills and can provide valuable training and experience that translates directly to paid employment. You will ...
... student, social). Volunteer work helps build critical competencies, knowledge, and skills and can provide valuable training and experience that translates directly to paid employment. You will ...
... student, social). Volunteer work helps build critical competencies, knowledge, and skills and can provide valuable training and experience that translates directly to paid employment. You will ...
$17.75 - $17.90/hr
Medical
Dental
Vision
Life
Retirement
Educated with expert product knowledge, they utilize proper selling techniques to assist customers ... student loan support and various mentorship programs - that encourage our associates to grow ...
$17.75 - $17.90/hr
Medical
Dental
Vision
Life
Retirement
Educated with expert product knowledge, they utilize proper selling techniques to assist customers ... student loan support and various mentorship programs - that encourage our associates to grow ...
San Juan, PR · On-site
$42.22/hr
Medical
Retirement
PTO
Track project costs, invoices, billing, and budget status. * Assist with job costing, financial ... student debt support. Disclaimer: Benefit offerings may vary depending on Collective Bargaining ...
San Juan, PR · On-site
$42.22/hr
Medical
Retirement
PTO
Track project costs, invoices, billing, and budget status. * Assist with job costing, financial ... student debt support. Disclaimer: Benefit offerings may vary depending on Collective Bargaining ...
San Juan, PR · On-site
$42.22/hr
Medical
Retirement
PTO
Track project costs, invoices, billing, and budget status. * Assist with job costing, financial ... student debt support. Disclaimer: Benefit offerings may vary depending on Collective Bargaining ...
San Juan, PR · On-site
$42.22/hr
Medical
Retirement
PTO
Track project costs, invoices, billing, and budget status. * Assist with job costing, financial ... student debt support. Disclaimer: Benefit offerings may vary depending on Collective Bargaining ...
Aguadilla, PR · On-site
Partner with Senior Traders to assist in and learn all facets of trading * Develop expertise in ... student groups or clubs and/or prior internship experience preferred * Deep understanding of ...
Aguadilla, PR · On-site
Partner with Senior Traders to assist in and learn all facets of trading * Develop expertise in ... student groups or clubs and/or prior internship experience preferred * Deep understanding of ...
| Aspect | Student Assistant | Research Assistant |
|---|---|---|
| Required Credentials | Typically enrolled students, sometimes with specific coursework | Usually graduate or undergraduate students with relevant research skills |
| Work Environment | On-campus, administrative or support roles | Laboratory, fieldwork, or academic research settings |
| Employer & Industry Usage | Universities, colleges, academic departments | Research institutions, universities, labs |
| Common Search & Comparison | Often compared for campus jobs, flexible hours | Compared for research experience, academic career |
While both roles support academic institutions, Student Assistants typically handle administrative tasks and support services, whereas Research Assistants focus on conducting research projects. The main difference lies in their responsibilities and work environment, with Research Assistants engaging more in specialized research activities.
The most popular types of Student jobs in Puerto Rico are:
Cities in Puerto Rico with the most Student Assistant job openings:

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 GarcÃa-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.Â
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).Â
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.Â
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.Â
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
51 - 200 Employees
Miami, FL, US