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Aversan Inc.

Estimator

Mississauga, ON, Canada

$95,000 to $110,000 CAD / year · Full-time

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Job details

Pay: $95,000 to $110,000 CAD / year
Job type: Full-time
Apply by: Dec 9, 2026
Posting language: English
Posted: Nov 12, 2026

Original job description

Aversan Inc. (www.aversan.com) is a trusted multi-service engineering and electronics manufacturing company. Aversan delivers leading-edge and reliable safety-critical electronics and software systems to the aerospace, defense, and space industries.

We are currently seeking a qualified Estimator to join our team. The ideal candidate will have experience in preparing detailed cost estimates and bid proposals for tunneling and trenchless construction projects, while also being proficient in using relevant software tools such as Primavera P6 and MS Project.

Location: Mississauga

Job Type: Full Time

Working Arrangement: On-site

Responsibilities

Prepare detailed cost estimates, bid proposals, and Bills of Quantities (BOQs) for heavy civil construction, infrastructure, tunneling, and underground construction projects.
Review tender documents, drawings, specifications, geotechnical reports, and contract requirements to assess project scope, identify risks, and develop pricing strategies.
Perform quantity take-offs and develop production-based cost models, including labour, equipment, materials, subcontractors, and project-specific expenses.
Prepare and support tender submissions, pre-qualification packages, RFIs, and RFQs in coordination with the Business Development and Technical teams.
Solicit, evaluate, and compare supplier and subcontractor quotations to support accurate and competitive bids.
Prepare material take-offs and cost estimates for construction materials, consumables, tunnel lining segments, reinforced concrete jacking pipes (RCJP), and other project-specific requirements.
Analyze geotechnical information and assess construction risks, developing appropriate risk registers and contingency allowances.
Coordinate with engineering, procurement, operations, project management, and project controls teams to validate estimates and support project execution.
Support awarded projects through cost reviews, estimate updates, and analysis of project changes and cost variations.
Maintain estimating databases, historical cost records, and pricing benchmarks to improve estimating accuracy and consistency.
Utilize Primavera P6 and other relevant construction software to support project scheduling, cost estimation, and tender preparation.

Basic Qualifications

Bachelor's degree in Civil Engineering or a related discipline.
Minimum 5–8 years of experience in heavy civil construction estimating, including at least 3 years in TBM tunneling, micro tunneling, pipe jacking, or related underground construction projects.
Strong understanding of construction estimating principles, quantity take-offs, BOQs, project costing, production rates, and subcontractor pricing.
Experience preparing tender submissions, pre-qualification packages, RFIs, and RFQs for major construction or infrastructure projects.
Experience using Primavera P6 for construction project scheduling or related project planning activities.
Background in heavy civil construction, infrastructure, transit/rail, water/wastewater, underground construction, or government/public-sector projects.
Knowledge of EPB, slurry, and open-face TBM operations, segmental tunnel lining systems, and reinforced concrete jacking pipes (RCJP).
Ability to interpret geotechnical data and baseline reports, engineering drawings, specifications, and construction contract documents.
Proficiency in Microsoft Office applications, particularly Excel, and familiarity with relevant estimating software.
Strong analytical, organizational, problem-solving, communication, and time-management skills.
Familiarity with MS Project, AutoCAD, Revit, TILOS, or similar construction software.
Valid Ontario Class G driver's license and eligibility to work in Canada.

Please Note

Interested applicants must apply directly to to be considered for this position.

The name of the file for the resume should be the applicant's full name and the position title you are applying for. The resume format should be PDF.

Compensation: $95,000 - $110,000 CAD (annual salary)

The base salary or rate offered to an applicant within this range is determined by considering several factors, including the individual's geographic location, skills, competencies, and unique qualifications. This ensures compensation is fair and aligned with the specific requirements and attributes of each candidate.

Vacancy Status: This posting is for an existing vacancy.

AI in Hiring: We use AI tools to assist with application management (e.g., organizing submissions and surfacing potentially relevant qualifications). AI is not used to make hiring decisions. All decisions are made by our hiring managers and recruitment team. Our use of AI is governed by security and privacy risk assessments aligned with our cybersecurity framework

Apply on LinkedIn About employer

More about this job

Responsibilities

Prepare detailed cost estimates, bid proposals, bills of quantities, and tender materials for heavy civil, infrastructure, tunneling, and underground construction projects. Review project documents and geotechnical information, coordinate pricing and estimate validation across teams, and support awarded projects with cost reviews and estimate updates.

Requirements

Requires a bachelor's degree in Civil Engineering or a related discipline and 5–8 years of heavy civil estimating experience, including at least 3 years in tunneling or related underground construction. Candidates should have strong estimating and quantity take-off skills, Primavera P6 experience, knowledge of TBM operations and tunnel systems, and eligibility to work in Canada with a valid Ontario Class G driver's license.

Skills

Cost Estimating
Quantity Take-Offs
Bid Proposals
Bills Of Quantities
Heavy Civil Construction
TBM Tunneling
Micro Tunneling
Pipe Jacking
Primavera P6
Project Scheduling
Geotechnical Analysis
Risk Assessment
Tender Submissions
Subcontractor Pricing
Microsoft Excel
Construction Cost Modeling

Visa sponsorship

Not detected in the job text

Keywords

Civil Engineering
Heavy Civil Construction
Infrastructure
TBM Tunneling
EPB TBM
Slurry TBM
Open-Face TBM
Micro Tunneling
Pipe Jacking
Tunnel Lining Segments
Reinforced Concrete Jacking Pipes
Cost Estimating
Quantity Take-Offs
Bills Of Quantities
Production-Based Cost Models
Tender Submissions
Pre-Qualification Packages
RFIs
RFQs
Geotechnical Reports
Risk Registers
Contingency Allowances
Primavera P6
MS Project
Microsoft Excel
AutoCAD
Revit
TILOS
Subcontractor Pricing
Project Costing

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