Sr. Estimator

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Date: Oct 30, 2026
Location: Toronto, ON, CA
Operating Sector: Major Projects East
Come Build Your Career at Aecon!
Aecon delivers some of the most complex and impactful infrastructure projects — from transformative transportation networks to critical energy, industrial and nuclear programs. The projects we build connect communities and power future generations. With deep roots in North America and a strong footprint internationally, Aecon brings global expertise and proudly serves public and private sector clients through its Construction and Concessions segment.
Safety Always is not only our #1 core value – it is the standard that anchors our culture. We believe the most ambitious projects deserve the most committed people. At Aecon, you won’t just build your career — you’ll help build what matters to enable future generations to thrive.
At Aecon, you can count on:
Safety Always.
Our number one core value. The safety of our people, projects, partners, and stakeholders is our priority focus – today and always.
Integrity.
We lead by example, with humility and courage.
Accountability.
We’re passionate about delivering on our commitments.
Inclusion.
We provide opportunities where people feel valued, supported, and empowered to contribute fully.
We deliver infrastructure with purpose, and our people are at the heart of everything we do. Aecon employees are incredibly proud to build some of the most impactful infrastructure of this generation – we call it
Aecon Proud .
At Aecon we:
Ensure you and your family receive the services and benefits needed to
support your mental, emotional, and physical well‑being.
Are intentional when it comes to investing in your development. We help you build your career and advance your skills through our
Aecon University, tuition reimbursement, and Leadership Programs.
Are committed to creating work environments focused on mutual respect, teamwork, collaboration, and new ideas, through meaningful initiatives, training, partnerships with Veteran groups, our
Aecon Women in Trades
and diversity programs, as well as our
Employee Resource Groups (ERGs), to ensure we are building with top talent and harnessing our collective strengths within every aspect of our culture.
Operate responsibly by managing risk, safety, and environmental considerations across all our projects and surrounding communities.
Our success is built on the passion, expertise, and dedication of our people. Together, we embrace strong execution, innovation, and continuous improvement — values that come to life through the unique talents and collaborative spirit of every team member. If you’re inspired to make a difference through future-building projects, join our best‑in‑class team.
What is the Opportunity?Aecon Civil is a recognized leader in the market, backed by strong self‑perform capabilities and deep local expertise. We play a key role in building and enhancing infrastructure across Canada, the U.S., and an expanding international footprint improving everyday life through the roads, bridges, tunnels, and transit systems that connect communities. With more than a century of experience and a full suite of integrated services, Aecon is a trusted partner for delivering complex civil projects, including tunnels, transit expansions, airports, ports, highways, and large‑scale site development.
Reporting to the Estimating Manager/Lead, the Sr. Estimator will be responsible for the delivery of organized estimates, budgets, and schedules and ensure the necessary systems and procedures are implemented to manage Aecon’s risk.
The HamiltonLRT Alliance has been selected by Metrolinx as the development partner for the HamiltonLRT – Package 1: Civil & Utilities. Under the alliance model, Aecon provides construction capability and resources as part of an integrated team, working collaboratively with all alliance participants to progress design, cost, and construction schedules during the project’s development phase.
The HamiltonLRT isn’t just a transit project—it’s reshaping how a city connects, grows, and moves. Join us in being part of a dynamic team building critical infrastructure that will leave a lasting legacy forgenerations to come!
What You’ll Do Here:
Lead the estimating efforts on various bids for major projects within civil east sector.
Pricing activities into the Hard Dollar estimating program.
Preparation of procurement packages, reviewing responses and assisting with updating of estimates.
Taking off quantities from bid drawings.
Reviewing specifications to identify scope.
Coordinating with other functions, and other Aecon Group estimators as necessary to support the estimating process.
Communicate with sub‑trades to gather the information needed.Assist in reviewing documents for proposals to enable complete estimate preparation.
Organize and obtain appropriate bonding and insurance requirements on estimates.
Contribute to the risk assessment and management process.
Assist proposals managers with collection and presentation of documents and reports for review and close‑out process.
Participate in bid management meetings and estimate reviews.
Present the essence/strategy of a completed estimate to management, defend its constructability, and defend calculated cost targets at a detailed level.
Prepare well‑crafted written requests for client clarifications that consistently protect and advance Aecon’s position, ensuring our bid advantage is never compromised.
Administration of document management for bids.
Other duties as required.
What You Bring to the Team:
10+ years’ experience in civilproject estimating within the construction industry.
Experience working on large scale projects, including design‑build.
Strong knowledge of various civil construction contract types (e.G. Lump Sum, Cost Reimbursable, Unit Price, Target, Guaranteed Maximum Price, etc.)
Working knowledge of industry standards, specifications, contract language/terms, and conditions/bonding.
Previous experience performing tender investigations and accurate documentation of site conditions impacting bid costs.Strong negotiation experience with vendors for project purchasing needs.
Strong understanding of balanced/un‑balanced bids and forecasting margins at the tender stage.
An expert in the job handover process (from estimating to operations).
Background checks required.
Valid Driver’s license.
Reason for Vacancy: Evergreen
The expected pay range for this role is $90,000 - $135,000 year
Individual pay is determined based on several factors, including work location, education, experience, unique skills and job conditions. Other considerations may include certifications, specialized training, and the complexity or scope of the role.
Aecon fosters diversity, inclusion and belonging within and across our organization. We welcome all to apply including, women, visible minorities, Indigenous peoples, persons with disabilities, and persons of any sexual orientation or gender identity.
We are committed to adhering to the objectives and requirements outlined in the Accessible Canada Act (ACA), and to meeting the accessibility needs of persons with disabilities in a timely manner. Through the implementation of the requirements of the ACA and its applicable regulations, appropriate accommodations will be provided upon request throughout the interview and hiring process.
As part of our commitment to fair and transparent hiring practices, Aecon may use artificial intelligence (AI) tools to assist in screening and reviewing candidates. These tools are applied responsibly and in accordance with applicable privacy laws and Aecon’s AI Usage Policy. All final decisions are made by qualified Aecon team members.
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