1

Construction Project Assistant Jobs in Puerto Rico

As MasTec's vertical construction arm, Lemartec delivers complex projects across industrial ... Lead a team of Project Managers and Assistant Project Managers to deliver exceptional results.

... * Assist project teams with general coordination tasks to ensure smooth project delivery. Requirements & Qualifications * Relevant technical diploma or degree in Engineering, Construction Management ...

PR · On-site

$15.25 - $19/hr

This role involves the installation of various landscape features, while ensuring that projects are ... Seasonal Snow Removal: * Assist with snow removal duties (shoveling, plowing, salt/sand application ...

PR · On-site

$11.75 - $14.50/hr

This role involves the installation of various landscape features, while ensuring that projects are ... Seasonal Snow Removal: * Assist with snow removal duties (shoveling, plowing, salt/sand application ...

PR · On-site

$15.50 - $15.75/hr

This role involves the installation of various landscape features, while ensuring that projects are ... Seasonal Snow Removal: * Assist with snow removal duties (shoveling, plowing, salt/sand application ...

PR

$15 - $18.75/hr

This role involves the installation of various landscape features, while ensuring that projects are ... Seasonal Snow Removal: * Assist with snow removal duties (shoveling, plowing, salt/sand application ...

PR · On-site

$15 - $18.75/hr

This role involves the installation of various landscape features, while ensuring that projects are ... Seasonal Snow Removal: * Assist with snow removal duties (shoveling, plowing, salt/sand application ...

PR · On-site

$10 - $12.50/hr

This role involves the installation of various landscape features, while ensuring that projects are ... Seasonal Snow Removal: * Assist with snow removal duties (shoveling, plowing, salt/sand application ...

PR · On-site

... * Assist in the preparation of project cost estimates, including labor, materials, equipment, and installation. * Support the development of bid packages for construction, equipment procurement, and ...

next page

Showing results 1-20

Construction Project Assistant information

What is the difference between Construction Project Assistant vs Construction Coordinator?

AspectConstruction Project AssistantConstruction Coordinator
ResponsibilitiesSupports project managers with administrative tasks, document management, scheduling, and communicationOversees project schedules, coordinates between teams, manages resources, and ensures project milestones are met
Required CredentialsHigh school diploma or equivalent; some roles prefer certifications like OSHA or project management basicsSimilar credentials; often requires experience in construction management or related certifications
Work EnvironmentOffice-based with site visits; collaborative with project teamsField and office work; active coordination on construction sites and project offices
Industry UsageCommonly used in construction firms for supporting rolesUsed for roles with more responsibility in project execution and coordination

While both roles support construction projects, the Construction Project Assistant primarily handles administrative and support tasks, whereas the Construction Coordinator takes on more active project management and coordination responsibilities. The roles often overlap but differ in scope and level of responsibility.

What are some common challenges faced by Construction Project Assistants, and how can they be navigated?

Construction Project Assistants often encounter challenges such as managing tight deadlines, coordinating communication between multiple stakeholders, and handling unexpected changes in project scope or schedule. Navigating these challenges involves strong organizational skills, adaptability, and proactive communication with team members, vendors, and contractors. Building a solid understanding of documentation processes and construction timelines also helps ensure smooth project execution and reduces errors, making the role both dynamic and rewarding for those who thrive in fast-paced environments.

What are Construction Project Assistants?

Construction Project Assistants are professionals who support project managers and teams in organizing, coordinating, and executing construction projects. Their responsibilities often include managing schedules, handling documentation, communicating with contractors and suppliers, and ensuring compliance with safety and quality standards. They play a key role in keeping projects on track by assisting with budgeting, procurement, and reporting. This role requires strong organizational skills, attention to detail, and the ability to work well in a fast-paced environment.

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

To thrive as a Construction Project Assistant, you need strong organizational skills, attention to detail, and a background in construction management or a related field, often supported by an associate degree or relevant experience. Familiarity with project management software (such as Procore or Microsoft Project), document control systems, and proficiency in Microsoft Office are typically required. Excellent communication, time management, and problem-solving abilities help you coordinate effectively among project teams and stakeholders. These skills ensure smooth project operations, accurate documentation, and timely completion of construction objectives.
What are the most commonly searched types of Construction Project jobs in Puerto Rico? The most popular types of Construction Project jobs in Puerto Rico are:
What are popular job titles related to Construction Project Assistant jobs in Puerto Rico? For Construction Project Assistant jobs in Puerto Rico, the most frequently searched job titles are:
What cities in Puerto Rico are hiring for Construction Project Assistant jobs? Cities in Puerto Rico with the most Construction Project Assistant job openings:
Infographic showing various Construction Project Assistant job openings in Puerto Rico as of June 2026, with employment types broken down into 80% Full Time, 7% Temporary, and 13% Contract. Highlights an 93% In-person, and 7% Hybrid job distribution.
Senior Project Manager

Senior Project Manager

Lemartec

Guayama, PR

Full-time

Posted 9 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