Underground Mobile Maintenance Supervisor - Hemlo Gold Mine - 7x7 Rotation Day/Night
Barrick Gold Corporation is hiring an Underground Mobile Maintenance Supervisor for its Hemlo Operations located near Marathon, Ontario. The position operates on a 7/7 residential schedule and requires the successful candidate to live within commuting distance of the Williams Mine, with a local travel allowance provided. This leadership role is accountable for overseeing the maintenance of all underground mobile equipment including drills, scoop trams, haul trucks, bolters, and support vehicles. The supervisor will manage a team of tradespeople, coordinate with other departments, and ensure safe and efficient equipment performance. Hemlo has been in continuous gold production for over 30 years and offers a collaborative environment with competitive pay, bonuses, pension, benefits, and share purchase plans.
Position
Work Rotation
Accommodations
Responsibilities
The UG Mobile Maintenance Supervisor will lead the underground mobile maintenance team and ensure optimal fleet performance. Key duties include:
- Supervise and support tradespeople in maintenance and repairs of underground mobile equipment.
- Plan and prioritize preventative maintenance and repairs based on production needs.
- Ensure compliance with health, safety, and environmental standards.
- Coordinate with planners and supply chain for parts and tools availability.
- Monitor equipment performance and implement improvements.
- Perform field inspections and quality checks on completed work.
- Lead incident investigations and root cause analyses.
- Run pre-shift/toolbox meetings to communicate work and safety updates.
- Ensure accurate documentation of work orders and logs.
- Coach team members and support training and performance development.
- Collaborate with OEMs and contractors for complex repairs.
- Report on KPIs, availability, and team productivity to management.
Requirements
Candidates must meet the following requirements to qualify:
- Journeyperson certification in Heavy Duty Equipment Mechanics (Red Seal or equivalent).
- Minimum 10 years of equipment maintenance experience; 3+ years in underground mining preferred.
- Grade 12 diploma or equivalent.
- Previous supervisory experience preferred.
- Underground Common Core certification preferred.
- Valid driver's license required.
- Strong technical knowledge of underground mobile equipment.
- Leadership and team-building skills with a focus on safety and accountability.
- Proficiency with CMMS systems like SAP is an asset.
- Physically fit and capable of working underground in varied conditions.
- Must comply with PPE and site safety requirements.
Perks and Benefits
Barrick offers a competitive compensation and development package for this role, including:
- Comprehensive pay package with competitive bonuses.
- Pension plan and company-matched share purchase plan.
- Global career advancement and training opportunities.
- Work in a high-performing, collaborative team environment.
- Local travel allowance for residents near the site.
Worksite/Project
Hemlo Gold Mine
The Hemlo Gold Mine sits about 35 kilometres east of Marathon in northwestern Ontario, along the Trans-Canada Highway north of Lake Superior. One of Canada's longest-running gold camps, Hemlo was discovered in 1981 and has produced gold from both underground and open-pit operations since 1985, yielding roughly 25 million ounces to date. The camp historically hosted three mines — Williams, David Bell, and Golden Giant — of which the Williams operation and its associated underground zones remain active today. The site is supported by established infrastructure, including a 10,000-tonne-per-day mill and a modern underground complex accessed by shaft and ramp, with a western open-pit expansion planned to begin in 2027. The property spans more than 45,000 hectares along the Hemlo greenstone belt and holds over a decade of gold reserves, with an active exploration program targeting further growth near existing infrastructure.
Hemlo Gold MineEmployer Hiring
Barrick Mining Corporation
Barrick Mining Corporation is one of the world's largest gold producers and a growing copper miner, headquartered in Toronto and listed on the New York Stock Exchange (GOLD) and Toronto Stock Exchange (ABX). Formerly Barrick Gold Corporation, the company rebranded to Barrick Mining Corporation in 2025 to reflect its expanding copper business alongside gold. Barrick operates a portfolio of large, long-life mines built around its "Tier One" strategy — assets producing at least 500,000 ounces of gold annually with more than a decade of reserves and costs in the lower half of the industry curve. Its principal operations include the Nevada Gold Mines joint venture in the United States, Kibali in the Democratic Republic of Congo, Loulo-Gounkoto in Mali, and Pueblo Viejo in the Dominican Republic, alongside copper assets such as Lumwana in Zambia and the Reko Diq project in Pakistan. In 2025 the company divested its remaining Canadian operation, the Hemlo gold mine in Ontario, as part of a strategy focused on its largest and lowest-cost global assets.
Barrick Mining Corporation