Project Field Engineer

Lemartec; Mayagüez (PR); On-site; USD 90,000 - 120,000; Full time

Job summary

Lemartec, MasTec’s general building arm, seeks a Project Field Engineer to provide engineering data to Project Managers, supervise subcontractors, and support cost/schedule controls for complex industrial projects. The role emphasizes adherence to codes, safety, and efficient field execution.

You will review drawings, develop field changes, oversee material and labor resources, and help ensure on-time delivery within contract terms. Strong communication and team collaboration are essential.

Qualifications

• Bachelor of Science degree in an engineering discipline from an accredited university.
• Minimum 5 years of experience in mechanical, electrical, civil, or HVAC systems.
• Ability to work independently and in a team on EPC projects with minimal supervision.
• Prior experience with civil and PRASA projects is preferred.

Responsibilities

• Interpret technical drawings and specifications for industrial construction.
• Prepare field design change requisitions and as-built drawings.
• Plan and develop construction work packages for civil, structural, mechanical, electrical, and process plant systems.
• Manage project schedules and QA/QC duties.
• Support Project Controls in cost, scheduling and estimating/re-estimating.
• Coordinate craft production and release work to meet schedules.
• Provide documentation and reports such as QA/QC and punch lists.

Skills

Industrial design

Construction knowledge

Engineering software

Code knowledge

Office & AutoCAD

Communication skills

Education

Bachelor of Science in Engineering

Tools

AutoCAD

Document Control Systems

Microsoft Office

Job description

Overview

Position Summary

The Project Field Engineer is responsible for providing technical engineering information to the Project Manager, Craft Supervisors and Corporate Functional Managers to ensure design development and construction work complies with all engineering standards, codes, specifications and design instruction applicable to one or more disciplines. This position also provides project controls support (cost, scheduling, estimating) and subcontract oversight to project construction supervision and craft personnel.

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.

The General Building operating group is part of the MasTec Clean Energy & Infrastructure (CE&I) business segment. The CE&I segment generates over $4.5 billion in annual revenue, providing construction services across our renewables, industrial, infrastructure, and general building operating groups. 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

• Understand technical drawings and specifications for industrial construction. Interpret design/drawings for crafts installing material.
• Prepare field design change requisitions and "as build" drawings, as required
• Comprehend subcontract language, scope, terms and technical requirements
• Plan and develop construction work packages for civil, structural, mechanical, electrical and process plant systems
• Understand detailed project schedules including required predecessors and successors to each activity
• Understand quality requirements and industry standards for various construction crafts and perform typical QA/QC duties as required and outlined the Lemartec Field Engineering Handbook
• Communications skills in writing and speaking (including technical communications)
• Manage and coordinate both material and human resources
• Support the Construction Manager in analyzing and reporting the daily progress of subcontractors
• Support subcontractors in a manner that adheres to the construction schedule and contract terms
• Facilitate technical approvals by the engineers and expedite design development according the engineering schedule and contract terms
• Coordinate craft production, and release work in a timely manner to meet subcontract and project schedules
• Propose modifications to engineering design and interpreting drawings, specifications and other technical documents for the subcontractors
• Provide support to the Project Controls Manager in standard Project Controls responsibilities (i.e. cost, scheduling, and estimating/re-estimating)
• Prepare and disseminate all required documentation records such as QA/QC report, punch lists describing work items to be done, sketches of work already completed, material requirement calculations, etc.
• Work to fulfill the requirements identified in the Lemartec Field Engineering Handbook
• Adhere to the Lemartec Employee Handbook and Human Resources Policies
• Adhere to the Lemartec Safety Manual and OSHA Safety rules
• Perform other duties as assigned by the Project Manager as required
• Frequently lift objects weighing up to 25 pounds
• Climb stairs
• Sit for long periods of time
• Occasionally stoop, kneel or crouch
• Use hands and arms to reach for, grasp and manipulate objectFrequent extended durations performing duties on the work site
• Hard Hat (Company Provided)
• Safety glasses (Company Provided)
• Rain coat or poncho
• Steel toed work boots

Qualifications

Work Experience and Education

• Must have a Bachelor of Science degree in an engineering discipline from an accredited university
• Minimum 5 years of experience in mechanical, electrical, civil, or HVAC systems
• Ability to work both independently and within a team environment on all phases of an EPC Project with minimal supervision
• Prior Experience with civil and PRASA projects are preferred

Knowledge/Skills/Abilities

• Understanding of design and engineering of large scale industrial projects across all engineering disciplines
• Knowledge of construction activities including material, equipment, cost and time requirements to perform construction tasks
• Technical engineering and computing knowledge
• Knowledge of codes that apply to industrial construction
• Strong computer skills (Microsoft Office: Excel, Word, PowerPoint and Outlook, AutoCAD, Document Control Systems)
• Strong oral and written communication skills (other preferences will be given for special language skills where there is a business need)

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 [e-mail]. 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.