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Dumas

Lead Development Miner / Jumbo Operator

Canada

Pay: Wage: $68.80 - $79.90
Job type: Contract
Experience: Minimum 2 years’ experience operating a Jumbo drill in underground development mining.
Posting language: English
Posted: Mar 29, 2026

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Original job description

Exciting Opportunities in our Timmins Camp

Position: Lead Development Miner / Jumbo Operators -Multiple Projects (Various sites across the Timmins Camp and beyond)

Rotation: 7/7, 14/14, 4/5/5/4

Shift: 10 - 12 Hour shifts, depending on the site schedule

Wage: $68.80 - $79.90

Potential Renumeration: KPI Bonus – Referral Bonus

Travel/Accommodations/Meals: Per Site Specific Allowance

Benefits: Dumas has a comprehensive benefits package offering life insurance, health/dental/vision/fitness provisions, and pension and employee assistance program(s) that support your physical, mental, and financial wellbeing.

Pre-Employment Requirements: Alcohol and Drug Test, Site Specific Training, Site Specific Requirements.

Screening: All applications are reviewed by the Recruitment Department; Artificial Intelligence is not used during any stage of the hiring process.

Eligibility: To be considered, you must be a Canadian citizen, or authorized in writing to work in Canada under federal immigration requirements, and currently be residing in Canada.

About the Role:

As a Lead Development Miner/Jumbo Operator at Dumas, you will lead a development crew and operate a Jumbo drill to advance underground headings safely and efficiently. This role involves drilling, blasting, and installing ground support while ensuring adherence to mine plans and safety standards.

Key Responsibilities:

Operate Jumbo drill to cycle full rounds according to the mining plan, following geology control for minimal dilution.
Lead a development crew to achieve safe and productive results.
Construct and maintain underground installations as the face advances.
Organize muck removal and maintain clean, safe work areas
Ensure compliance with Dumas and site-specific safety protocols and environmental regulations.
Conduct pre-operational checks and routine maintenance on equipment, reporting all issues promptly.
Communicate effectively with supervisors and team members to meet all targets.
Participate in workplace inspections and hazard assessments.

Qualifications:

Underground Hard Rock Mining Common Core with all required specialty modules
Underground Hard Rock Mining Supervisory Common Core modules are a strong asset.
Minimum 2 years’ experience operating a Jumbo drill in underground development mining.
Ability to cycle a full round and interpret drilling patterns accurately.
Proven experience leading a development crew.
Outstanding safety record and strong mechanical aptitude.
Excellent safety record and commitment to safe work practices.

Take on the challenges and rewards of a career that will take you far.

Why Dumas?

Excellent compensation and comprehensive benefits
Performance-based financial rewards
Commitment to health and safety
Training and career development
Global opportunities

Submit Your Application:

Please send us your resume via our website at www.dumasmining.com – it is important to submit your Ministry transcripts using the “Add Portfolio” button under the additional files section at the bottom of the first page.

Thank you for your interest in this career opportunity with Dumas Contracting Ltd. To be considered, you must be a Canadian citizen or authorized in writing to work in Canada under federal immigration requirements, and currently be residing in Canada.

Dumas Contracting Inc. is committed to an environment that is barrier free. If you require accommodation during the hiring process, please inform us in advance so that we can arrange reasonable and appropriate accommodation.

We appreciate the interest of all applicants; however, only those candidates selected for an interview will be contacted. Dumas Contracting Inc. does not use artificial intelligence to screen, assess, or select applications. This advertisement is for an existing vacancy.

The above reflects the general duties considered to describe the principle functions of the job and shall not be construed as a detailed job description of all work requirements that may be inherent in the job. This description is for the purpose of information only. It is understood that the terms or conditions of the job are subject to change as may be deemed necessary by the Company to maintain a safe and efficient operation.

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More about this job

Responsibilities

The Lead Development Miner operates a Jumbo drill to advance underground headings while leading a crew to ensure safe and productive results. Responsibilities include drilling, blasting, installing ground support, and maintaining equipment according to mine plans and safety protocols.

Requirements

Candidates must possess an Underground Hard Rock Mining Common Core certification and at least 2 years of experience operating a Jumbo drill. Applicants are required to be Canadian citizens or authorized to work in Canada and must reside in the country.

Skills

Jumbo drill operation
Underground mining
Development mining
Blasting
Ground support installation
Mine plan interpretation
Equipment maintenance
Hazard assessment
Workplace inspection
Team leadership
Mechanical aptitude
Safety compliance

Benefits

Life insurance
Health insurance
Dental insurance
Vision insurance
Fitness provisions
Pension plan
Employee assistance program

Visa sponsorship

Not detected in the job text

Keywords

Jumbo drill
Underground mining
Development mining
Hard rock mining
Mining common core
Blasting
Ground support
Geology control
Mine plan
Safety protocols
Equipment maintenance
Hazard assessment
Timmins camp
Dumas Contracting
Drilling patterns
Mechanical aptitude
Mining operations

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