Testing Services Assistant

Position : Service Worker
Project : Rotation : 4/5/5/4
Shift : 10.5/HRs
Potential Renumeration : KPI Bonus – Referral Bonus

Travel/Accommodations/Meals : Per Site Specific Allowance

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.

Alcohol and Drug Test, Site Specific Training, Site Specific Requirements.

Artificial Intelligence is not used during any stage of the hiring process.

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.

As a Service Miner at Dumas, you’ll be responsible for installing, maintaining, and upgrading critical underground services that keep the mine operating safely and efficiently. This includes ventilation systems, air and water lines, dewatering infrastructure, electrical services (as permitted), and related mine services. You’ll work in challenging underground environments, ensuring quality workmanship, adherence to specifications, and uncompromising safety.

Set up, tie-in, and maintain mine services including compressed air, potable/industrial water, pump lines, heat lines, and drainage.
Assist with dewatering systems: pump installation, line routing, valve placement, backflow prevention, and routine inspection/maintenance.
Read and interpret blueprints, service layouts, and ventilation plans; verify measurements and ensure installations meet design specifications.
Conduct pre-operational checks and routine maintenance on tools and service equipment (scissor lifts, boom lifts, forklifts, telehandlers, small fans/pumps), reporting issues promptly.
Perform hose/pipe fitting and rigging tasks (flanges, couplings, clamps, reducers), pressure testing, and leak troubleshooting.
Ensure compliance with Dumas and site-specific safety protocols, environmental standards, and quality requirements.

Ontario Underground Hard Rock Mining Common Core with Specialty Modules in Service Mining (or provincial equivalent).
Minimum 3 years of underground service installation experience (ventilation, air/water services, pumps, and related infrastructure).
Demonstrated proficiency in ventilation hardware, pipe/hose systems, fittings, fan/regulator installation, and service QA/QC.
Strong understanding of safe lifting/rigging, energy isolation (LOTO), and working at heights in underground environments.
Asset: scissor/boom lift, forklift/telehandler), Working at Heights, Confined Space, WHMIS.

Performance-based financial rewards

• Training and career development
• Please send us your resume via our website at – it is important to submit your transcripts using the “Add Portfolio” button under the additional files section at the bottom of the first page.

Dumas Contracting Inc. does not use artificial intelligence to screen, assess, or select applications.