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Estimating Intern

MasTec · Posted Nov 10, 2026

San Juan, Puerto Rico, Puerto Rico
On-site
Part-time · Intern
1–3 years

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Coordinating information among team members in the Estimating Department, accurately estimating complete quantity takeoffs, and managing drawings, specifications, subcontractor, and vendor data.

Responsibilities

Create, obtain, and evaluate all documents/data required for bidding, including specifications, scopes of work, architectural documents, site plans, soil reports, community guidelines, and other pertinent documents that affect construction costs.
Work with suppliers, sub-contractors, etc., to facilitate bids, takeoffs, pricing, and proposals.
Work with architects, drafters & engineers as required to ensure building plans are accurately documented.
Participate in value engineering efforts and identify areas for improvement.
Document estimating and pre-construction activities and keep team members informed.

Requirements

Bachelor's degree in construction management or a related field preferred

Skills

Construction industry practices Materials knowledge Methods knowledge Purchasing of services and supplies

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