Lead Development Miner / Jumbo Operator -Ore Headings

On-site
Posted Oct 7, 2026
1 position

Opens an external site

Employment type: Contract
Experience level: Mid-level · 3+ years
Minimum education: Professional degree
Posting language: English
Working hours: 40 hours per week

Job summary

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 compliance with safety and environmental protocols.

Job details

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 3 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. Schedule: We offer a variety of site-specific schedules, and our recruiters will be happy to provide detailed information about the schedule for each position during the initial screening process. Compensation: This position offers a competitive wage along with a comprehensive benefit and retirement package. Meal and travel allowances along with accommodations for out-of-town workers are also provided. 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 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.

What you’ll do

Requirements

Candidates must possess an Underground Hard Rock Mining Common Core certification and at least 3 years of experience operating a Jumbo drill. Proven leadership experience and the ability to interpret drilling patterns are required for this role.