Senior Project Manager/ Estimator

The Opportunity

Matrix HR is recruiting a Senior Project Manager / Estimator for an established commercial roofing and building-envelope contractor. This position is full-time, permanent, and based at the client’s Calgary office.

This is an excellent opportunity for an experienced roofing professional to take ownership of projects from tender and estimating through project delivery, financial management, and closeout, while working with an established team and a diverse range of commercial projects.

The ideal candidate brings strong technical knowledge of commercial roofing and building-envelope systems, combined with the ability to estimate accurately, manage projects effectively, identify risk, protect margins, and build strong client relationships. This is a hands-on role for someone who enjoys being involved in both the numbers and the field and takes pride in seeing projects successfully delivered from start to finish.

What You’ll Be Doing

Estimating & Pre-Construction

• Review drawings, specifications, addenda, schedules, tender instructions, contracts, and site conditions.

• Complete detailed quantity takeoffs and prepare accurate, competitive estimates for commercial low-slope roofing and related building-envelope projects.

• Develop labour pricing based on realistic production rates, crew composition, sequencing, seasonality, access constraints, and project-specific conditions.

• Obtain and evaluate quotations from suppliers, manufacturers, equipment providers, and subcontractors.

• Identify scope gaps, exclusions, substitutions, constructability issues, warranty requirements, and commercial risks before bid submission.

• Attend pre-bid meetings and site reviews to confirm existing conditions, logistics, staging, access, and safety requirements.

• Prepare clear scopes, assumptions, clarifications, exclusions, and bid submissions.

• Support tender interviews, negotiations, and the handover from estimating to operations following award.

• Maintain estimating records and use completed-project results to improve future pricing accuracy.

Project Management & Delivery

• Manage awarded projects from contract review and kickoff through completion and closeout.

• Develop project budgets, schedules, procurement plans, workforce forecasts, material-release schedules, and site logistics plans.

• Coordinate with owners, consultants, general contractors, manufacturers, suppliers, subcontractors, superintendents, forepersons, and field crews.

• Ensure required submittals, shop drawings, product data, permits, and other documentation are complete before work begins.

• Monitor project progress, labour productivity, material usage, equipment costs, subcontractor performance, and forecasted cost to complete.

• Conduct regular site visits and resolve technical, sequencing, access, quality, and constructability issues.

• Manage RFIs, site instructions, contemplated changes, change quotations, change orders, and delay or impact documentation.

• Support progress billings, schedules of values, holdback documentation, and project financial reporting.

• Maintain accurate project records and lead project closeout, including deficiencies, inspections, warranties, as-builts, O&M documentation, and final billing.

Technical, Quality & Safety Leadership

• Provide technical leadership on low-slope roofing systems and related building-envelope interfaces.

• Review roof assemblies for compatibility, drainage, insulation, air and vapour control, membrane continuity, penetrations, flashings, transitions, and tie-ins.

• Confirm compliance with contract documents, applicable codes, manufacturer requirements, warranty standards, and approved installation details.

• Coordinate manufacturer and third-party inspections as required.

• Work with field leadership to maintain safe work practices and meet applicable occupational health and safety requirements.

• Address quality concerns promptly and ensure corrective actions are documented and completed.

Client & Commercial Management

• Serve as a primary point of contact for clients, general contractors, consultants, and other project stakeholders.

• Communicate project status, risks, decisions, cost impacts, schedule changes, and required actions clearly and promptly.

• Protect project margin through disciplined scope control, procurement, forecasting, billing, documentation, and change management.

• Build strong client relationships that support repeat and negotiated work.

• Participate in post-project reviews and recommend improvements to estimating and operating processes.

What You Bring

• At least seven years of progressive experience in commercial roofing or closely related building-envelope construction.

• Demonstrated experience both preparing estimates and managing awarded projects. Candidates with experience in only one of these areas will not meet the core requirement.

• Strong knowledge of commercial low-slope roofing systems, including SBS modified bitumen, built-up roofing, EPDM, TPO, PVC, insulation, vapour barriers, flashings, sheet metal, and waterproofing.

• Practical understanding of building-envelope performance, including moisture control, air and vapour control, thermal continuity, drainage, penetrations, transitions, and tie-ins.

• Proven ability to read and interpret architectural drawings, details, specifications, contracts, and tender documents.

• Strong understanding of quantity takeoffs, labour productivity, material pricing, procurement, job costing, forecasting, progress billing, and change-order management.

• Experience managing multiple active projects and competing bid deadlines.

• Proficiency with Microsoft Excel and estimating, takeoff, document-control, or project-management software.

• Strong written and verbal communication skills.

• Valid driver's licence and ability to travel to project sites in Calgary and surrounding areas.

• Legal authorization to work in Canada.

Preferred Qualifications

• Diploma or degree in construction management, architectural technology, engineering technology, quantity surveying, or a related discipline. Equivalent trade and field experience will be considered.

• Red Seal roofing certification, Gold Seal certification, Project Management Professional designation, or equivalent industry credentials.

• Experience with occupied facilities, phased work, institutional buildings, industrial facilities, or technically complex retrofit projects.

• Experience with architectural sheet metal, wall cladding, air-barrier systems, waterproofing, or broader building-envelope scopes.

• Established relationships with local suppliers, manufacturers, consultants, general contractors, and subcontractors.

• Experience mentoring estimators, coordinators, or junior project managers.

• Experience with Bluebeam, PlanSwift, On-Screen Takeoff, Procore, or comparable platforms.

Why Join The Team?

• Competitive compensation based on experience.

• Comprehensive benefits package.

• Bonus potential based on performance and company results.

• RRSP program.

• Paid vacation and time off.

• Opportunity to work on a variety of commercial roofing and building-envelope projects.

• Established and collaborative team environment.

• Opportunity to take ownership of projects and have a meaningful impact on project and company results.

• Long-term career growth with an established contractor.

Apply Today

If you are an experienced commercial roofing professional who can estimate, manage, and deliver projects from tender through closeout, we encourage you to apply and learn more about this opportunity.

Posting Deadline: Applications are encouraged as soon as possible, as the position may close once a suitable candidate is identified.