Thyssen Mining is currently seeking experienced Development Supervisors for a FIFO camp position in Ontario working on a 14 day in 14 day our rotation. Position Summary

The Underground Development Supervisor is responsible for leading and coordinating underground mine development activities in accordance with the

Ontario Mining Act ,

OHSA , and site-specific policies and procedures. This role ensures secure, productive, and cost-effective advancement of underground development headings while providing strong leadership to crews and contractors. Key Responsibilities

Supervise daily underground development activities including drilling, blasting, mucking, ground support, and installation of services Ensure compliance with the Ontario Mining Act, Occupational Health and Safety Act (OHSA), and all site safety standards Lead pre-shift safety meetings, workplace inspections, and Job Hazard Analyses (JHAs) Coordinate personnel, equipment, and materials to meet development and production targets Monitor ground conditions and ensure proper installation and quality of ground support Communicate daily progress, issues, and priorities to mine management and technical teams Collaborate with engineering, geology, maintenance, and ventilation departments Investigate incidents, near misses, and unsafe conditions; implement corrective actions Support training, coaching, and performance management of underground employees Participate in short-range planning and continuous improvement initiatives Qualifications & Experience

Minimum 5–10 years of underground mining experience,



with a strong background in development Previous supervisory or lead-hand experience in an underground environment preferred Proven knowledge of underground development methods, equipment, and ground support practices Strong understanding of Ontario mining regulations and safety requirements Previous experience in "Mechanized Development" Education & Certifications

Post-secondary education in Mining Engineering Technology or a related discipline is an asset Ontario Common Core – Underground Hard Rock Mining Modules, including Supervisor modules Valid First Aid / CPR certification Blasting certification or experience working with explosives (asset) Skills & Competencies

Demonstrated safety leadership and hazard recognition skills Ability to lead by example and coach and mentor new employees as required. Strong communication and team leadership abilities Ability to manage priorities in a dynamic underground environment Strong organizational, reporting, and problem-solving skills Competency with production reporting and mine tracking systems Work Conditions

Underground work environment in all mining conditions Rotational schedules may include days, nights, weekends, and extended shifts Physically demanding role requiring compliance with site medical and fitness standards Why Join Us

Competitive compensation $27/hr plus production bonus, medical and dental on day one, and $4/hr RRSP Stable employment at an established Ontario mining operation Opportunities for career advancement and professional development Strong safety culture and collaborative team environment

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📌 Development Supervisor (Winnipeg)
🏢 Thyssen Mining
📍 Winnipeg