3D Data Prep Technician

Founded in 1953, Thomas Cavanagh Construction has continued to set the standard for quality construction and materials in Eastern Ontario.

With our strategically located pits and quarries, our unmatched fleet of trucks and heavy equipment, our state-of-the-art facilities, and our dedicated employees, Thomas Cavanagh Construction has earned a reputation as one of Ottawa’s most trusted and respected contractors.

Overview

We are looking for an experienced Earthworks Estimating Modeller to support our estimating and pre‑construction teams by producing accurate 3D models, surface comparisons, and material quantity takeoffs.

This role is ideal for someone who has spent years converting 2D engineering plans into reliable 3D surfaces, identifying grading issues, and preparing data that estimators can trust.

If you excel at building clean, accurate models and balancing sites you’ll fit right in.

Duties and Responsibilities

• Build high‑accuracy 3D earthworks models from 2D engineering drawings for subdivisions, ponds, commercial sites, roads, and parking lots.
• Generate cut/fill maps, material quantities, and earth balance reports for estimating.
• Create subgrade, finish grade, and comparison surfaces to support bid preparation and value‑engineering.
• Identify inconsistencies, grading conflicts, and design errors in consultant drawings and communicate them proactively.
• Support estimators by providing accurate quantities for earth, topsoil, granulars, asphalt, curb, and other civil materials.
• Produce color maps, volume reports, and visualizations to support bid submissions and internal reviews.
• Collaborate with project managers and estimators to ensure models reflect constructible, cost‑effective solutions.
• Required Skills & Experience
• 10+ years of experience in earthworks modelling, CAD drafting, or civil construction estimating support.
• Strong proficiency in Trimble Business Center, Bluebeam, Excel, and familiarity with Auto CAD.
• Deep understanding of grading, drainage, and civil construction methods.
• Proven ability to convert 2D plans into clean, accurate 3D surfaces.
• Experience balancing sites, optimizing grades, and preparing quantity takeoffs.
• Ability to work independently, manage multiple deadlines, and adapt quickly to changing bid requirements.
• Detail‑driven mindset with a strong focus on accuracy and quality control.
• Experience with UAV/Li DAR/Photogrammetry data is an asset.
• Diploma in Civil Engineering Technology, Survey Technology, or related field.

Cavanagh Employee Benefits

• Family, people-centric culture
• Safe and healthy workplace, promoting well being.
• Internal growth opportunities
• Training and development opportunities
• Benefit, Wellness and Pension Programs

Wage Range

The salary range for this position in Ontario at the start of employment is expected to be between $65,000 per year and $85,000 per year.

However, the range offered is based on local job market factors and may vary further depending on factors specific to the selected job candidate, such as job-related knowledge, skills, experience, and other objective business considerations.

We may use AI-enabled tools to support a fair and efficient recruitment process. All results are reviewed by a Recruiter. Please contact Human Resources if you have any questions.

The above statements are intended to describe the general nature and level of work being performed by people assigned to the classification.

They are not to be construed as an exhaustive list of all responsibilities, duties and skills required of personnel so classified.

All personnel may be required to perform duties outside of their normal responsibilities from time to time, as needed.

Join Our Team

Wherever you want your career to go, we’re here to help you grow with us.

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