Commercial Administrator

Kenaidan Contracting Ltd
Niagara County, NY
Kenaidan and Murphy are excited to announce a joint venture dedicated to bringing global innovation to infrastructure projects across Ontario.

Project Overview:
The Kenaidan Murphy Joint Venture (KMJV) is supporting a major transit infrastructure project in the Niagara/Hamilton Region.

Who we are:
Founded in 1974, Kenaidan continues to be a fixture as a dynamic construction firm dedicated to creating structures that will contribute to the well-being of our community and enhance the fabric of our communities for years to come. Our confidence in our expertise and passion for our work has allowed us to deliver an array of projects with unmatched precision, quality, and efficiency. From general contracting to construction management, we deploy a collaborative approach, embedding innovation and sustainability into every project. #TeamKenaidan

Murphy operates in the United Kingdom, Ireland, Canada and America as a leading international specialist engineering and construction company. Founded in 1951, we are committed to improving life through delivering world-class infrastructure, providing engineered solutions across transportation, natural resources, energy, and water sectors. With around 4,000 engineers, professional managers, and skilled operatives internationally, we work together as One Murphy to ensure project success. #MoveToMurphy .

We are a proud Equal Opportunity Employer, committed to providing employees’ work-life balance with a competitive compensation package including:
  • Top wages
  • Benefit coverage for you and your dependents
  • Employer RRSP contributions (no match required)
  • Paid Time Off
We currently have an opening in Niagara/Hamilton ON for a:

Commercial Administrator

The Commercial Administrator will provide administrative and coordination support to the project’s commercial and contract management functions. The successful candidate will assist with contract administration, subcontract documentation, change management, cost reporting, commercial correspondence, procurement records, and document control while ensuring accurate and organized project records are maintained.

How will you contribute to the team?

To perform this role successfully, the candidate will be responsible for, but not limited to, the following:
  • Provide administrative support to the Commercial Manager and broader project commercial team.
  • Assist with the preparation, distribution, and tracking of subcontracts, purchase orders, change orders, and other commercial documentation.
  • Maintain organized and accurate commercial, contractual, procurement, and project records.
  • Track subcontractor documentation, including executed agreements, insurance certificates, bonds, statutory declarations, and other required submissions.
  • Assist with subcontractor onboarding and ensure required documentation is received and properly filed.
  • Support the administration and tracking of change notices, requests for quotation, change orders, and related approvals.
  • Maintain logs for contracts, purchase orders, changes, claims, notices, and commercial correspondence.
  • Assist with the preparation of monthly commercial reports, cost reports, forecasts, and project status updates.
  • Support the review and processing of subcontractor and supplier invoices, payment applications, and supporting documentation.
  • Coordinate with project teams to confirm quantities, progress, approvals, and documentation required for payment processing.
  • Assist with procurement activities, including preparing bid documentation, issuing requests for quotation, and maintaining bid records.
  • Prepare meeting agendas, take minutes, and track action items for commercial and procurement meetings.
  • Draft and format commercial correspondence, notices, reports, and other project documentation.
  • Coordinate with subcontractors, suppliers, consultants, and internal stakeholders to obtain outstanding information and documentation.
  • Ensure project records are maintained in accordance with company procedures, contractual requirements, and audit standards.
  • Assist with project closeout activities, including the collection and organization of final commercial documentation.
  • Support the identification and escalation of missing documentation, outstanding approvals, and potential commercial risks.
  • Perform general administrative duties required to support the successful delivery of the project.
Education and Experience:
  • Diploma or degree in Construction Management, Engineering, Quantity Surveying, Business Administration, Commerce, Finance, Accounting, or a related field.
  • Two or more years of experience in commercial administration, contract administration, project coordination, procurement, accounting, or administrative support within a construction or infrastructure environment.
  • Previous experience supporting civil, transportation, transit, rail, infrastructure, or public-sector projects is considered an asset.
  • Experience working with subcontracts, purchase orders, change orders, invoices, payment applications, and commercial documentation is preferred.
  • Familiarity with Construction Management, Design-Build, Progressive Design-Build, or Joint Venture project environments is considered an asset.
  • Experience working with Metrolinx, GO Expansion, TTC, municipal, provincial, or other public-sector clients is considered an asset.
  • Strong organizational skills with the ability to manage multiple priorities, deadlines, and document requirements.
  • Strong attention to detail and a commitment to maintaining accurate and complete records.
  • Effective written and verbal communication skills.
  • Ability to work collaboratively with project teams, subcontractors, suppliers, and other stakeholders.
  • Proficiency in Microsoft Office applications, including Excel, Word, Outlook, and Teams.
  • Experience using document management, project management, accounting, or contract administration systems is considered an asset.
Salary Range:
Between $75,000 - $100,000, depending on experience

Think you're the right fit?
Apply today! Check in regularly for new opportunities on our website or stay up to date by following our social media platforms.
Kenaidan: LinkedIn , Instagram , Murphy: LinkedIn , Instagram .

We are an inclusive and equal opportunity employer committed to providing diversity and accommodation for applicants upon request in accordance with the Accessibility for Ontarians with Disabilities Act (AODA).

The KMJV does not accept resumes from recruitment agencies, employment services or head hunters that are not in a formal contractual arrangement with us. Any resume or other information received from an agency not approved by us will be considered unsolicited and will not be considered. We will not pay any referral, placement or other fee for the supply of such unsolicited resumes or information.

We thank all candidates who apply, however, only those selected for an interview will be contacted.
Posted 2026-08-16

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