Administrative Assistant, Project Controls Full Time Permanent
We’re looking for a detail-oriented Administrative Assistant, Project Controls to support our team in a rapid-paced construction environment. This role helps ensure accurate, timely financial and administrative processes, including payroll, procurement, accounts payable, and client billing.
What You’ll Do
Build and maintain strong working relationships with project teams to ensure timely and accurate information flow
Prepare, validate, and price Labour, Equipment, and Material (L.E.M.) documentation, ensuring correct rates, classifications, and cost coding
Submit LEM packages for client approval, track status, and maintain organized records for audit readiness
Reconcile LEM data with tracking logs using Excel-based tools to identify discrepancies and ensure data integrity
Track on-site equipment to support billable cost recovery
Generate and process Purchase Order Requisitions (PORs) and amendments
Maintain procurement logs and monitor changes
Submit packing slips to Accounts Payable for invoice matching and documentation tracking
Liaise with Accounts Payable and Receivable to ensure accurate financial records
Collect, validate, and reconcile timesheets within the payroll system
Ensure proper cost allocation and compliance with agreements
Support the preparation and reconciliation of client billing packages
Ensure all documentation is complete, accurate, and submission-ready
Help minimize billing delays through proactive data validation
Coordinate onboarding, travel, and accommodations for project teams
Provide general administrative support to project operations
What You Bring
College diploma in Business Administration, Accounting, Construction Management, or a related field
Minimum 2 years of experience in an administrative role.



Experience in construction administration or project support considered an asset.
Experience with payroll allocation, procurement tracking, accounts payable, and/or accounts receivable is considered an asset.
Strong proficiency in Microsoft Excel, including data reconciliation and automation tools (experience using macros considered an asset).
Strong organizational and time management skills, with the ability to manage multiple priorities
High attention to detail and ability to work independently with minimal supervision
Professional communication skills to collaborate with teams, vendors, and clients
Valid driver’s license and reliable transportation
Willingness to travel to remote project and camp locations.
Ability to work extended hours, rotational schedules, or weekends as required.
What We Offer You
At TESC, we recognize that great people build great projects. We offer a competitive total rewards package designed to support your career, well-being, and future.
Competitive compensation, including performance-based incentives
Paid vacation, sick days, and statutory holidays
Ongoing career development and advancement opportunities
The opportunity to work on complex, high-impact industrial projects
A strong safety culture and team-oriented environment where people support one another
Salary Range: $49,028 - $57,680. Salary will be determined based on relevant experience, qualifications, and demonstrated capabilities. Job-specific allowance may be paid in addition to the standard hourly rate to reflect particular assignment requirements, including site conditions, location, or the complexity and scope of the work. Any applicable allowance will be identified separately in the offer.
TESC is an equal prospect employer. In accordance with the Accessibility for Ontarians with Disabilities Act, accommodation is available throughout our recruitment process for applicants with disabilities.

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📌 Administrative Assistant, Project Controls Full Time Permanent Oct 7 (Ontario)
🏢 TESC
📍 Ontario