Assistant Commercial Manager

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

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. #Team Kenaidan

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 4000 engineers, professional managers, and skilled operatives internationally, we work together as One Murphy to ensure project success.

#Move To Murphy .

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

Location:

Niagara/Hamilton ON

The Assistant Commercial Manager will support the commercial management of a major rail/transit infrastructure project. This role works closely with project leadership, subcontractors, and consultants to ensure strong cost control, contract compliance, and overall financial performance of the project.

• Assist in the administration of prime contracts and subcontract agreements
• Support change management processes including tracking, pricing, and negotiating change orders and variations
• Monitor project costs, budgets, and forecasts to ensure alignment with financial objectives
• Assist in preparing cost reports, cash flow forecasts, and monthly financial reviews
• Support cost value reconciliation (CVR) and variance analysis
• Review and process subcontractor payment applications and invoices
• Assist with procurement and commercial onboarding of subcontractors and suppliers
• Identify and track commercial risks and opportunities throughout the project lifecycle
• Support preparation and submission of claims and assist in dispute resolution processes
• Maintain accurate commercial records, including contracts, correspondence, and cost documentation
• Liaise with project teams, consultants, and clients to resolve commercial and contractual issues
• Ensure compliance with contractual obligations and company commercial procedures

• Diploma or degree in Construction Management, Engineering, Quantity Surveying, or a related field
• 4-8+ years of experience in commercial management, cost control, or contract administration within construction projects
• Experience working on infrastructure or transit projects is preferred
• Strong understanding of construction contracts, cost management, and procurement processes
• Experience managing subcontractor commercial activities and financial reporting
• Familiarity with contract forms (e.g., CCDC) and commercial documentation
• Strong commercial awareness and analytical skills
• Excellent communication and stakeholder management abilities
• Ability to manage multiple priorities and meet tight deadlines
• Detail-oriented with strong organizational and reporting skills
• Problem-solving mindset with the ability to manage commercial risks proactively
• Working…