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General Contractor Assistant Jobs in Puerto Rico

Lemartec

Senior Project Manager

Guayama, PR

Company Overview Founded in 1979, Lemartec is a national general contractor and construction ... Lead a team of Project Managers and Assistant Project Managers to deliver exceptional results.

Lemartec

Senior Project Manager

Guayama, PR

Company Overview Founded in 1979, Lemartec is a national general contractor and construction ... Lead a team of Project Managers and Assistant Project Managers to deliver exceptional results.

Lemartec

Senior Project Manager

Guayama, PR · On-site

Company Overview Founded in 1979, Lemartec is a national general contractor and construction ... Lead a team of Project Managers and Assistant Project Managers to deliver exceptional results.

Lemartec

Senior Project Manager

Guayama, PR · On-site

Company Overview Founded in 1979, Lemartec is a national general contractor and construction ... Lead a team of Project Managers and Assistant Project Managers to deliver exceptional results.

CERES

PR

$33 - $38/hr

The company is expanding its efforts to assist in securing the power grid for the Island. Driven by ... Communicate effectively with customers, utility representatives, property owners, contractors, and ...

Veterans Health Administration

$50K - $65K/yr

Monitors contractor performance and supports quality assurance. Reviews of maintenance services ... The online assessment measures critical general competencies required to perform the job.

The Condado Collection

PR · On-site

Supervise work performed by external contractors, ensuring quality, timely completion, and ... , Plumbing, and General Building Maintenance. * Experience supporting operating budget ...

Charter Schools USA (CSUSA)

PR

Manage Contractors. (General contractors, plumbers, electricians, A/C replacements, locksmiths ... Assistant Director of Projects & Facilities will assess the effectiveness annually with respect to ...

U.S. Courts

$89K - $106K/yr

General administration and management: responding to administrative inquiries from staff, ensuring ... and contracting for office equipment and furniture. * Purchasing, procurement, and property ...

Ross Stores

Assistant Store Manager

Guayama, PR

GENERAL PURPOSE : Responsible for the management and supervision of all areas assigned by the Store ... Maintains a high standard of housekeeping with help of contracted maintenance personnel and Ross ...

Ross Stores

Assistant Store Manager

Guayama, PR

General Operating Requirements: Leads all Company Best Practices and maximizes productivity by ... Maintains a high standard of housekeeping with help of contracted maintenance personnel and Ross ...

Inteldot

Project Coordinator

Gurabo, PR · On-site

... contractors, vendors, and internal project stakeholders. * Support compliance with site safety procedures and GMP requirements during project execution activities. * Assist project teams with general ...

Pinnaql

EHSS Coordinator

Punta Santiago, PR

... and contractor compliance activities during project execution. * Assist with coordination of ... Knowledge of OSHA regulations and general industrial safety practices is preferred. * EHSS ...

LEGAL PROJECT MANAGEMENT PARTNERS LLC

PR · On-site

Serve as a day-to-day point of contact between internal teams and contractors. * Organize meetings ... Provide general administrative and project coordination support throughout all phases of execution.

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General Contractor Assistant information

What are the key skills and qualifications needed to thrive as a General Contractor Assistant, and why are they important?

To thrive as a General Contractor Assistant, you need a basic understanding of construction processes, project documentation, and safety protocols, often supported by a high school diploma or relevant trade certifications. Familiarity with project management software, scheduling tools, and construction site equipment is typically required. Strong organizational skills, attention to detail, and effective communication make someone stand out in this position. These skills are crucial for supporting project efficiency, ensuring safety compliance, and facilitating smooth coordination between teams and subcontractors.

What is the difference between General Contractor Assistant vs Construction Coordinator?

AspectGeneral Contractor AssistantConstruction Coordinator
CredentialsHigh school diploma, some experience in constructionHigh school diploma, often some project management knowledge
Work EnvironmentConstruction sites, officesConstruction sites, project offices
Employer & Industry UsageConstruction companies, general contractorsConstruction firms, project management teams
Common Search & ComparisonYesYes

The main difference is that a General Contractor Assistant supports the general contractor with daily tasks, scheduling, and coordination, often focusing on site assistance. A Construction Coordinator typically handles project planning, communication, and documentation, often with more emphasis on administrative and organizational duties. Both roles are essential in construction projects but differ in scope and responsibilities.

What are General Contractor Assistants?

General Contractor Assistants support general contractors in managing construction projects by performing administrative, organizational, and hands-on tasks. Their duties often include coordinating schedules, communicating with subcontractors and suppliers, maintaining project documentation, and ensuring that safety regulations are followed on-site. They help keep projects running smoothly by assisting with project planning, budget tracking, and addressing any logistical needs that arise. This role is vital for efficient project execution and helps ensure construction projects are completed on time and within budget.

What are some typical challenges faced by a General Contractor Assistant, and how can they be managed?

General Contractor Assistants often face challenges such as juggling multiple tasks on tight deadlines, coordinating with various subcontractors, and adapting quickly to changes on the job site. Effective time management, clear communication, and a proactive approach to problem-solving are essential for success in this role. Building strong relationships with team members and staying organized can help manage these challenges and contribute to smooth project execution.

What Does a General Contractor Assistant Do?

As a general contractor assistant, you assist construction teams on a building site and in an office. Your responsibilities include tasks like preparing and securing equipment, maintaining clean and safe work areas, and collaborating with teams of workers to complete each project. You use power and hand tools, direct subcontractors and temporary staff on daily duties, inventory materials, and collaborate with team members to complete tasks. Duties also include attending meetings and taking notes as necessary, communicating with teams of architects, engineers, subcontractors, and other team members, and following guidelines to ensure each structure is safe and meets code requirements.

More about General Contractor Assistant jobs
What are popular job titles related to General Contractor Assistant jobs in Puerto Rico? For General Contractor Assistant jobs in Puerto Rico, the most frequently searched job titles are:
What job categories do people searching General Contractor Assistant jobs in Puerto Rico look for? The top searched job categories for General Contractor Assistant jobs in Puerto Rico are:
What cities in Puerto Rico are hiring for General Contractor Assistant jobs? Cities in Puerto Rico with the most General Contractor Assistant job openings:
General Contractor Assistant jobs near you
Infographic showing various General Contractor Assistant job openings in Puerto Rico as of June 2026, with employment types broken down into 1% As Needed, 76% Full Time, 20% Part Time, 1% Temporary, and 2% Contract. Highlights an 92% Physical, 1% Hybrid, and 7% Remote job distribution.
Senior Project Manager

Senior Project Manager

Lemartec

Guayama, PR

Full-time

Posted 16 days ago

Job description

Overview

The Senior Project Manager is responsible for leading and managing the MEP scope of work to deliver exceptional results for our clients. The Senior PM is an executive-level position and is expected to identify, propose, close, and manage construction projects and staff.


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 the execution of 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 over 400 locations throughout North America and the Caribbean, Lemartec is uniquely positioned to serve a diversified customer base.

With experience across all 16 disciplines of construction, 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). 


Responsibilities
  • Develops solutions to ensure that issues never become problems.
    Studies bid specs carefully, looking for potential issues before the commencement of the project.
  • Develops contingency plans proactively to mitigate potential risks – in the event an item of the critical path is delayed.
  • Understands the subcontractor scope and contracts, and identifies opportunities and risks.
  • Ensure that every member of the team has a comprehensive Business Development plan to meet and exceed their targets.
  • Attend interviews as required to close new business.
  • Attend industry, social and non-profit events to build relationships and identify new opportunities.
  • Proactively build and sustain relationships with targeted clients.
  • Initiate new projects with architects, engineers and owners.
  • Successfully identify and develop a specific niche.
  • Proactively communicate with the client team at all times.
  • Proactively develop relationships with the subcontractor community.
  • Recruit new qualified subcontractors.
  • Track and procure new work through the subcontractor community.
  • Ensure accuracy of subcontractor requisitions.
  • Lead a team of Project Managers and Assistant Project Managers to deliver exceptional results.
  • Recruit high-caliber personnel from outside sources, college campuses, etc.
  • Manage multiple project teams successfully while maximizing both profit and client satisfaction.
  • Work with on-site Superintendents to deliver the highest possible quality and customer satisfaction.
  • Lead the pre-construction/RFP package effort with the help of the estimating department.
  • Build strong win-win relationships with other departments within Lemartec, including accounting, marketing, business development and estimating.
  • Ensure that the project quality control plan is in effect and followed.
  • Ensure that the punch list is completed to the client’s satisfaction.
  • Submit project change orders to clients within Lemartec’s standards.
  • Complete and distribute meeting minutes within 24 hours of progress meetings.
  • Prepare, complete, and submit O&M manuals to clients within 30 days of substantial completion.
  • Complete WIP reports within scheduled timeframe.
  • Ensure that the job processes are followed in accordance with policy.

Qualifications

  • Work Experience and Education

    • Bachelor’s degree in Architecture, Engineering, or Construction. An additional 5 years of relevant work experience in lieu of experience.
    • Minimum 10 Years of experience as a project manager overseeing commercial and industrial projects. Preferred 15+ years of experience.
    • Prior experience with waste water treatment plant projects is required.

    Knowledge/Skills/Abilities

    • Familiarity with local specifications and supplements to each, and with reading blueprints
    • Proficiency in planning, scheduling, and production in P6, Microsoft Project, or equivalent software, and in Microsoft Office suite (Excel/Word/Outlook) is also required, along with estimating software knowledge.
    • Excellent organizational, presentation, and interpersonal skills.
    • High degree of professionalism and strong work ethic
    • Multi-task and stay focused on the big picture while addressing daily issues
    • MUST HOLD A PE

    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 into 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 respecting consideration of unemployment status in making hiring decisions.

    Disclaimer: MasTec and our Subsidiaries will never ask prospective employees for any form of payment or money transfer as part of job application or onboarding. We do not ask prospective employees for information about credit cards or personal passwords, and it does 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:

  • Work Experience and Education

    • Bachelor’s degree in Architecture, Engineering, or Construction. An additional 5 years of relevant work experience in lieu of experience.
    • Minimum 10 Years of experience as a project manager overseeing commercial and industrial projects. Preferred 15+ years of experience.
    • Prior experience with waste water treatment plant projects is required.

    Knowledge/Skills/Abilities

    • Familiarity with local specifications and supplements to each, and with reading blueprints
    • Proficiency in planning, scheduling, and production in P6, Microsoft Project, or equivalent software, and in Microsoft Office suite (Excel/Word/Outlook) is also required, along with estimating software knowledge.
    • Excellent organizational, presentation, and interpersonal skills.
    • High degree of professionalism and strong work ethic
    • Multi-task and stay focused on the big picture while addressing daily issues
    • MUST HOLD A PE

    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 into 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 respecting consideration of unemployment status in making hiring decisions.

    Disclaimer: MasTec and our Subsidiaries will never ask prospective employees for any form of payment or money transfer as part of job application or onboarding. We do not ask prospective employees for information about credit cards or personal passwords, and it does 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: FULL_TIME

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