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General Contractor Assistant Jobs in Puerto Rico

Overview The Lemartec Senior Schedule r will assist Project Managers in the planning and scheduling ... Company Overview Founded in 1979, Lemartec is a national general contractor and construction ...

Overview The Lemartec Senior Schedule r will assist Project Managers in the planning and scheduling ... Company Overview Founded in 1979, Lemartec is a national general contractor and construction ...

Overview The Lemartec Senior Schedule r will assist Project Managers in the planning and scheduling ... Company Overview Founded in 1979, Lemartec is a national general contractor and construction ...

Overview The Lemartec Senior Schedule r will assist Project Managers in the planning and scheduling ... Company Overview Founded in 1979, Lemartec is a national general contractor and construction ...

Overview The Lemartec Senior Schedule r will assist Project Managers in the planning and scheduling ... Company Overview Founded in 1979, Lemartec is a national general contractor and construction ...

Overview The Lemartec Senior Schedule r will assist Project Managers in the planning and scheduling ... Company Overview Founded in 1979, Lemartec is a national general contractor and construction ...

Overview The Lemartec Senior Schedule r will assist Project Managers in the planning and scheduling ... Company Overview Founded in 1979, Lemartec is a national general contractor and construction ...

Maintenance Assistant

Bayamon, PR · On-site

$14.75 - $18.50/hr

... contractor support. Additionally, the Maintenance Assistant supports the reporting and ... General and Technical Skills: * Strong organizational and follow-up skills. * Proficiency with ...

PR · On-site

$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 ...

$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 ...

Maintenance Assistant

San Juan, PR · On-site

$15.50 - $19.50/hr

Position Summary Provides janitorial services and general maintenance of warehouse and grounds ... contracting out electrical work, wearing safety goggles when using compactor and baler, product ...

Maintenance Assistant

San Juan, PR · On-site

$16 - $20/hr

Position Summary Provides janitorial services and general maintenance of warehouse and grounds ... contracting out electrical work, wearing safety goggles when using compactor and baler, product ...

OSHA Certification (General Industry or Construction) * Experience in: * Health, Safety ... Contractor Safety Management. * Safety Plans review and compliance monitoring. * Documentation ...

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.

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.

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

Showing results 21-40

General Contractor Assistant information

What is a general contractor assistant?

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 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.

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 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 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 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:

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.

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 6 days ago


Job description

Overview

The Lemartec Senior Scheduler will assist Project Managers in the planning and scheduling of design & construction projects, preferably in Heavy Industrial construction.

Company Overview

Founded in 1979, Lemartec is a national general contractor and construction management firm, 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
  • Drive development and maintenance of specific project baselines and reporting systems to fulfill project requirements
  • Prepare, maintain & review cost/resource-loaded P6 schedules, including budget and schedule development, forecasting and control, earned value analyses, document control, change order analyses, and reporting.
  • Implement and maintain the Planning/Scheduling portion of projects
  • Develop and maintain critical path logic networks and bar charts utilizing this information
  • Analyze, evaluate, and forecast current status against an established baseline schedule
  • Assess the impact(s) of design or construction changes and schedule slippages
  • Report schedule status to all levels of the project team, company management, and the client
  • Provide guidance, direction, and specialized assistance to others in the resolution of project control issues as needed
  • Attend schedule review meetings at project locations (available to travel within the USA).
  • Perform other responsibilities associated with this position as may be appropriate.  

Qualifications

Work Experience and Education

  • 10+ years of relevant work experience
  • Bachelor's Degree in Civil Engineering, Construction Management, or a related field
  • No professional license is required, but a certification from PMI or AACEi is a plus
  • Experience in large industrial construction projects preferred.
  • Ability to travel within the United States
  • Technical experience required:
    • Demonstrated experience in program management with a focus on Scheduling. 
    • Sound knowledge and demonstrated experience in the use of Primavera P6
    • Working knowledge of the use of other Project Controls software (Sage 300 CRE Timberline, Primavera P6, etc.)
    • Must be an effective communicator, both orally and in writing, with an ability to work with all levels of the program management team.
    • Ability to analyze contractors' schedule(s) during both the development phase (baselines) and during active construction to determine overall progress, including analyses of critical path(s), and review resource loading
    • Ability to prepare scheduling reports for the project management team(s) as needed
    • Ability to perform Time Impact Analysis
    • Experience in cost estimating is a plus
    • 10 years of experience in the scheduling of construction work
    • Bachelor's Degree in Civil Engineering, Construction Management, or a related field
    • No professional license is required, but a certification from PMI or AACEi is a plus
    • Experience in large industrial construction projects preferred
    • Ability to travel within the United States

Knowledge/Skills/Abilities

  • Demonstrated experience in program management with a focus on Scheduling 
  • Sound knowledge and demonstrated experience in the use of Primavera P6
  • Working knowledge of the use of other Project Controls software (Sage 300 CRE Timberline, Primavera P6, etc.)
  • Must be an effective communicator, both orally and in writing, with an ability to work with all levels of the program management team
  • Ability to analyze contractors' schedule(s) during both the development phase (baselines) and during active construction to determine overall progress, including analyses of critical path(s), and review resource loading
  • Ability to prepare scheduling reports for the project management team(s) as needed
  • Ability to perform Time Impact Analysis
  • Experience in cost estimating is a plus

What's in it for you:

Financial Wellbeing

  • Compensation commensurate with experience
  • Competitive pay with ongoing performance review and merit increase
  • 401(k) with company match & Employee Stock Purchase Plan (ESPP)
  • Flexible spending account (Healthcare & Dependent care)

Health & Wellness

  • Medical, Dental, and Vision insurance (plan choice) - coverage for spouse, domestic partner, and children
  • Diabetes Management, Telehealth Coverage, Prescription Drug Plan, Pet Insurance, Weight Management Drug Discount
  • Discounted National Gym Membership Network

Family & Lifestyle

  • Paid Time Off, Paid Holidays, Bereavement Leave
  • Military Leave, including Benefits Continuation
  • Employee Assistance Program

Planning for the Unexpected

  • Short and long-term disability, life insurance, and accidental death & dismemberment
  • Voluntary life insurance, accident, critical illness, and hospital indemnity coverage
  • Emergency Travel Assistance Program
  • Group legal plan

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 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 a 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-ONSITE

#LI-LV1

Qualifications:

Work Experience and Education

  • 10+ years of relevant work experience
  • Bachelor's Degree in Civil Engineering, Construction Management, or a related field
  • No professional license is required, but a certification from PMI or AACEi is a plus
  • Experience in large industrial construction projects preferred.
  • Ability to travel within the United States
  • Technical experience required:
    • Demonstrated experience in program management with a focus on Scheduling. 
    • Sound knowledge and demonstrated experience in the use of Primavera P6
    • Working knowledge of the use of other Project Controls software (Sage 300 CRE Timberline, Primavera P6, etc.)
    • Must be an effective communicator, both orally and in writing, with an ability to work with all levels of the program management team.
    • Ability to analyze contractors' schedule(s) during both the development phase (baselines) and during active construction to determine overall progress, including analyses of critical path(s), and review resource loading
    • Ability to prepare scheduling reports for the project management team(s) as needed
    • Ability to perform Time Impact Analysis
    • Experience in cost estimating is a plus
    • 10 years of experience in the scheduling of construction work
    • Bachelor's Degree in Civil Engineering, Construction Management, or a related field
    • No professional license is required, but a certification from PMI or AACEi is a plus
    • Experience in large industrial construction projects preferred
    • Ability to travel within the United States

Knowledge/Skills/Abilities

  • Demonstrated experience in program management with a focus on Scheduling 
  • Sound knowledge and demonstrated experience in the use of Primavera P6
  • Working knowledge of the use of other Project Controls software (Sage 300 CRE Timberline, Primavera P6, etc.)
  • Must be an effective communicator, both orally and in writing, with an ability to work with all levels of the program management team
  • Ability to analyze contractors' schedule(s) during both the development phase (baselines) and during active construction to determine overall progress, including analyses of critical path(s), and review resource loading
  • Ability to prepare scheduling reports for the project management team(s) as needed
  • Ability to perform Time Impact Analysis
  • Experience in cost estimating is a plus

What's in it for you:

Financial Wellbeing

  • Compensation commensurate with experience
  • Competitive pay with ongoing performance review and merit increase
  • 401(k) with company match & Employee Stock Purchase Plan (ESPP)
  • Flexible spending account (Healthcare & Dependent care)

Health & Wellness

  • Medical, Dental, and Vision insurance (plan choice) - coverage for spouse, domestic partner, and children
  • Diabetes Management, Telehealth Coverage, Prescription Drug Plan, Pet Insurance, Weight Management Drug Discount
  • Discounted National Gym Membership Network

Family & Lifestyle

  • Paid Time Off, Paid Holidays, Bereavement Leave
  • Military Leave, including Benefits Continuation
  • Employee Assistance Program

Planning for the Unexpected

  • Short and long-term disability, life insurance, and accidental death & dismemberment
  • Voluntary life insurance, accident, critical illness, and hospital indemnity coverage
  • Emergency Travel Assistance Program
  • Group legal plan

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 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 a 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/<...