Senior Estimator - GO Rail Expansion (RER)

Aecon Group Inc.


Date: 2 weeks ago
City: Toronto, ON
Contract type: Full time
Come Build Your Career at Aecon!

As a Canadian leader in infrastructure development, Aecon is safely and sustainably building what matters for future generations to thrive! We lead some of the most impactful infrastructure projects of our generation, at the forefront of transformational change in transportation and energy, and partnering every day to build, connect, power, and strengthen our communities.

At Aecon, You Can Count On

  • Safety Always. Our number one core value. If we can’t do it safely, we don’t do it at all.
  • Integrity. We lead by example, with humility and courage.
  • Accountability. We’re passionate about delivering on our commitments.
  • Inclusion. We provide equitable opportunities for everyone.


We lead the infrastructure industry with purpose, and our people are at the heart of everything we do. So, we invest in our people, just like they invest in us!

At Aecon We

  • Ensure you and your family receive the services needed to support your mental, emotional, and physical well-being.
  • Believe in helping you build your career through our Aecon University and Leadership Programs.
  • Are committed to supporting and investing in inclusive work environments, through initiatives like Equity, Diversity & Inclusion training, our Aecon Women in Trades and Aecon Diversity in Trades programs, and our Employee Resource Groups (ERGs) to ensure we are building inclusion into every aspect of our culture at Aecon.
  • Are a leader in sustainable construction. With a strong commitment to operating responsibly by minimizing our impact on the environment and surrounding communities.


Our business success relies on strong execution and continuous improvement – driven by the diversity, expertise and teamwork of our people. We’re always searching the globe for innovative, collaborative minds to join our best-in-class Aecon community!

What Is The Opportunity?

Aecon is currently seeking a Senior Estimator to join the GO Rail Expansion (RER) project, located in the Greater Toronto Area. This transformational project is the largest capital infrastructure project in Ontario’s historic GO Rail Expansion program! 

What You'll Do Here

  • Lead and mentor a team of estimators, providing expert guidance and fostering a collaborative environment.
  • Utilize your extensive experience in construction estimating across diverse scopes of work, including civil, structures, track, and stations.
  • Conduct a comprehensive review of drawings and tender documents to grasp the complete scope of work and submission requirements.
  • Demonstrate your expertise in design models and integrated digital delivery (IDD) software for precise project scope evaluation and quantity generation.
  • Develop meticulous bills of quantities (BOQ) by leveraging your experience and employing various advanced techniques, including Bluebeam.
  • Establish material price lists (derived from BOQs), labor costs per manhour, equipment requirements, and assemble crews while accurately pricing BOQ items.
  • Obtain competitive pricing from subcontractors and suppliers, ensuring cost efficiency without compromising on quality.
  • Thoroughly research historical data, such as purchase orders, subcontracts, productivity analysis, benchmarking, and reports, to compile insightful summary reports and establish robust estimating guidelines for the project.
  • Maintain meticulous records of working documents as essential backup for estimating figures.
  • Provide valuable insights into the design process to ensure a seamless transition from planning to execution.
  • Collaborate closely with stakeholders, including project managers and executives, to deliver accurate and comprehensive estimates that align with project objectives.
  • Performs other duties and responsibilities as required.
  • Drive an inclusive culture to promote equity, welcome different perspectives, and enable career progression by fostering a sense of belonging. 


What You'll Bring To The Team

  • Over 7 years of hands-on experience as an estimator in the construction industry, with a proven track record of successfully estimating projects of significant scale and complexity.
  • A solid educational foundation with a university degree or technical college diploma in Civil Engineering or Construction Management.
  • Proficiency in reading, interpreting, and comprehending complex construction drawings and blueprints.
  • In-depth understanding of construction methodologies, contracts, and cost control techniques.
  • Exceptional interpersonal skills, including the ability to build and maintain strong relationships, outstanding communication abilities, and impeccable attention to detail.
  • Proven leadership capabilities, enabling you to guide and inspire your team to achieve outstanding results.
  • Advanced proficiency in standard Microsoft software (Excel, Word, etc.), with additional experience in Adobe, Visio, and Bluebeam.
  • Impeccable time management and organizational skills, ensuring efficiency in time-sensitive situations.
  • A results-oriented mindset with an unwavering commitment to quality and excellence.
  • Be a champion of inclusion and diversity.


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. If you require accommodation under the ACA during any step of the application process please click here.

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