Metrolinx’s GO Expansion program is delivering more GO service across the network, including the capacity to deliver two-way service every 15 minutes or better on core routes. Work is already underway on new track, station renovations and infrastructure upgrades on parts of the Lakeshore, Stouffville, Kitchener and Barrie lines. The ONxpress Civil Joint Venture is comprised of Aecon Infrastructure Management Inc. and FCC Canada Ltd.

This multidisciplinary team leads the delivery of civil and track works, leveraging global expertise to introduce innovative solutions across the GO Transit network. Lead and execute procurement activities in alignment with approved project procurement strategies, budgets, schedules, and corporate policies. Interpret, apply, and ensure compliance with all project procurement, commercial, and safety policies.

Develop sourcing strategies for complex, high-value, and high-risk packages, incorporating total cost of ownership principles. Lead the procurement and award of complex subcontract packages for construction works, including supply and installation, testing and commissioning, temporary works, specialty contracting services, and project closeout/handover activities. Lead commercial and contractual negotiations with subcontractors to achieve commercial outcomes as per the guidelines provided.

Draft and review contractual documents, including purchase orders, subcontracts, and amendments. Provide detailed reporting, analysis, and recommendations on procurement performance, risks, variances, and market conditions. Manage subcontractor and stakeholder relationships,



acting as the primary escalation point for procurement and commercial matters.

Maintain a high level of data integrity within procurement and enterprise systems. Provide guidance, mentorship, and day-to-day support to junior procurement team members as required. Collaborate closely with engineering, construction, commercial, legal, and finance teams to ensure alignment and successful project outcomes. 8+ years of progressive experience supporting large infrastructure, transportation, civil, industrial, or construction projects, with significant experience sourcing, negotiating, and administering construction subcontracts for work packages.

Demonstrated experience procuring and negotiating supply, install, testing and commissioning subcontracts, construction services and equipment rental agreements. Strong understanding of subcontract execution requirements, including scope development, risk allocation, change management, commissioning, turnover documentation, warranties, deficiencies management, and project handover.

Experience procuring multidisciplinary construction scopes involving civil, structural, utilities, rail, systems, mechanical, electrical, or related infrastructure works. Post-secondary education in supply chain management, business, engineering,



construction management, or related field (or equivalent experience). Solid technical knowledge of construction and infrastructure project scopes, methodologies, and delivery processes.

Advanced understanding of procurement principles, ethical sourcing practices, and contract management. Solid knowledge of contract law, commercial negotiations, and public/private sector tendering processes (RFQs, RFPs, tenders). Proven ability to manage complex, concurrent procurement activities in a fast-paced, deadline-driven environment.

Demonstrated ability to build and maintain effective relationships with internal stakeholders and external suppliers. comprehensive medical and dental program potential to participate in our discretionary, performance based bonus program This role is a newly created position and is based on-site at Woodbine Station. As part of our commitment to fair and transparent hiring practices, ONxpress may use artificial intelligence (AI) tools to assist in screening and reviewing candidates. These tools are applied responsibly and in accordance with applicable privacy laws and ONxpress’ AI Usage Policy.

This position is with ONxpress Civils ("CJV" aka the Design & Construction team); the project segment responsible for the modernization and modification of the key area network, including countless innovations in the way the regional rail infrastructure is built. We value diversity and encourage all qualified individuals to apply, regardless of whether they meet 100% of the qualifications listed.

📌 Senior Procurement Specialist - Temporary (Mississauga)
🏢 ONxpress
📍 Mississauga