Estimator

Aversan; Mississauga; On-site; CAD 95,000 - 110,000; Full time

Job summary

Aversan Inc. is looking for an Estimator to join our Mississauga head office. The ideal candidate will prepare detailed cost estimates and BOQs for heavy civil, infrastructure, tunneling, and underground projects, using Primavera P6 and MS Project.

On-site role with a focus on pricing strategies and risk assessment. Qualified candidates will have 5–8 years in heavy civil estimating, experience with TBM tunneling or underground works, and strong proficiency in Excel and related estimating tools.

Qualifications

• Bachelor's degree in Civil Engineering is required.
• 5–8 years in heavy civil estimating, including TBM tunneling or underground construction.
• Experience preparing tender submissions, RFIs, and RFQs for major projects.
• Experience using Primavera P6 for scheduling.
• Knowledge of BOQs, production rates, and subcontractor pricing.
• Familiarity with geotechnical data and construction contracts.

Responsibilities

• Prepare detailed cost estimates, bids, and BOQs for heavy civil, tunneling and underground projects.
• Review tender documents, drawings, specs, geotechnical reports and contracts to define scope and pricing.
• Perform quantity take-offs and develop production-based cost models (labour, materials, equipment, subs).
• Prepare tender submissions, pre-qualification packages, RFIs and RFQs with cross-functional teams.
• Solicit and evaluate supplier and subcontractor quotations for competitive bids.
• Prepare material take-offs for tunnel components and project-specific items.
• Analyze geotechnical data and assess risks, updating risk registers and contingencies.
• Coordinate with engineering, procurement, operations, and project controls to validate estimates.
• Support cost reviews and estimates updates on awarded projects.
• Maintain estimating databases and historical cost records to improve accuracy.
• Use Primavera P6 and other tools to support scheduling and tender prep.

Skills

Estimating

Tender submissions

Primavera P6

MS Project

Excel

AutoCAD

Revit

Geotech data

Cost modeling

Subcontractor pricing

Education

Bachelors in Civil Engineering

Tools

Primavera P6

MS Project

AutoCAD

Revit

TILOS

Excel

Job description

Estimator

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 Head Office

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.

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