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Posted 3 months ago

Estimator, Infrastructure

@ Ledcor Ontario Infrastructure Projects

Oshawa, Ontario

Full-time5+ years experience
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Overview

Ledcor Ontario Infrastructure Projects is hiring a full-time Estimator in Oshawa, Ontario, on a major GO Transit infrastructure project, reporting to the Senior Estimator. The work covers quantity takeoffs, cost studies, budgets, subcontractor pricing, bid comparisons and tender submissions for complex construction projects. The posting gives a base pay range of $90,450 to $120,600 and describes a site-based role.

Responsibilities:

  • Prepare estimating packages, takeoffs and bid comparisons
  • Review drawings, specifications and tender documents
  • Solicit and analyze subcontractor and supplier quotes
  • Lead estimate review meetings and support tender submissions
  • Identify contractual risks and recommend mitigation

Requirements summary:

  • Bachelor's degree in engineering, construction management or quantity surveying
  • Minimum 5 years of construction estimating experience
  • Experience with large infrastructure, civil or transit projects
  • Proficiency with Microsoft Office and estimating software
  • BIM knowledge considered an asset

Tools & skills

Source and dates

Employer career site / ATS feed · workday

Employer posting date
2026-08-11
First seen by our source
2026-10-08
Source record updated
2026-10-14

These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.

Job details

SeniorityMid level
DepartmentBusiness operations
Experience5+ years
Hours per week40 (estimated)
Travelair: none · ground: minimal
Work settingOffice, Client sites
PositionMostly sitting
Physical demandsphysical low · computer high
LanguagesEnglish
EducationBachelor’s degree (required)
Fields of studyEngineering, Construction Management, Quantity Surveying
Perks mentionedWellness

Summary and details written by AI from the posting; the employer’s posting is the authority.

Ledcor Ontario Infrastructure Projects

FieldValue
Open jobs on Jobsy12
Job description
Over the last 30 years in Ontario, Ledcor has continued to grow and evolve and is now a leading provider of construction services across the province. From our early days building infrastructure and developing communities, to our more recent work in the heavy civil and mining, residential, and aviation sectors, we have always been driven by our commitment to safety, quality, integrity, sustainability, and success.

We are seeking a skilled Estimator to join our team in Oshawa, Ontario, supporting a major GO Transit infrastructure project. Reporting to the Senior Estimator, the successful candidate will play a key role in preparing accurate and competitive estimates for complex construction and infrastructure projects.

Essential Responsibilities:

  • Prepare comprehensive estimating packages, including quantity takeoffs, cost studies, budgets, subcontractor pricing, and bid comparisons.
  • Review project drawings, specifications, contract terms, and tender documentation to ensure all project requirements are incorporated into estimates.
  • Review and coordinate RFIs prior to submission and support the resolution of estimating-related questions.
  • Perform quantity takeoffs for large and complex construction projects and coordinate takeoff activities.
  • Lead subcontractor and supplier solicitation efforts and maintain strong industry relationships.
  • Review, analyze, and compare subcontractor and supplier quotations to support procurement and bid strategies.
  • Develop detailed project estimates, including verification of direct and indirect costs.
  • Assign and manage bid package responsibilities as required.
  • Develop and analyze project schedules and execution plans in collaboration with operations teams.
  • Evaluate constructability, project risks, and opportunities during the estimating process.
  • Participate in and lead estimate review meetings.
  • Prepare bid clarifications and support tender submissions.
  • Provide estimating guidance and technical support to project stakeholders and team members.
  • Assist with contractual risk identification and recommend mitigation strategies.
  • Perform other duties as assigned.

Qualifications:

  • Bachelor's Degree in Engineering, Construction Management, Quantity Surveying, or a related field.
  • Minimum 5 years of related estimating experience within the construction industry.
  • Experience preparing estimates for large, complex construction, infrastructure, civil, transportation, or transit projects.
  • Proven ability to manage multiple tenders and deadlines in a fast-paced environment.
  • Experience supporting competitive bid submissions and subcontractor procurement activities.
  • Strong proficiency with Microsoft Office Suite and industry-standard estimating software.
  • Knowledge of BIM (Building Information Modeling) and model-based estimating is considered an asset.
  • Thorough understanding of trade-related drawings, specifications, and construction documentation.
  • Ability to assess construction documents for completeness and identify potential risks or gaps.
  • Strong knowledge of construction costs, budgeting methodologies, and project scheduling.
  • Experience identifying, negotiating, and mitigating contractual risks.
  • Strong analytical and problem-solving skills with exceptional attention to detail.
  • Excellent written and verbal communication skills.
  • Ability to effectively communicate technical information to a variety of stakeholders.
  • Demonstrated ability to mentor, coach, and collaborate with team members.
  • Commercial awareness and a proactive approach to problem-solving.
  • Strong relationship-building skills with clients, subcontractors, suppliers, and internal stakeholders.

Working Conditions:

  • Site-based role in Oshawa, Ontario.

#LI-NC1

Compensation

$90,450.00 - $120,600.00

This is the expected base pay range for this role. Individual base pay will be determined based on a variety of factors including experience, knowledge, skills, education and location.

Our competitive total rewards package provides compensation and benefits that support your physical, mental and financial wellbeing. We offer exciting, challenging work with opportunities to develop your skills and knowledge.

Additional Information

Ledcor builds and maintains infrastructure in various industries including oil and gas, transportation, and mining. We’re experts in all infrastructure construction and maintenance related projects. Our vast projects include: full-scale contract mining, earthworks, foundations, highways, bridges, roads, waterways and resources, airports, rapid transit, underground utilities, pipelines, independent power projects and site reclamation.

Our workplace culture has been recognized as one of Canada’s Best Diversity Employers, Canada’s Most Admired Corporate Cultures, and a Top 100 Inspiring Workplace in North America.

Employment Equity

At Ledcor we believe diversity, equity, and inclusion should be part of everything we do. We are proud to be an equal-opportunity employer. All qualified individuals, regardless of race, color, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, Veteran status or any other identifying characteristic are encouraged to apply.

Our True Blue team consists of individuals from all backgrounds who contribute diverse perspectives and experiences to Ledcor. We are committed to continuing to build on our culture of empowerment, inclusion and belonging.

Adjustments will be provided in all parts of our hiring process. Applicants need to make their needs known in advance by submitting a request via email. For more information about Ledcor’s Inclusion and Diversity initiatives, please visit our I&D page.

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