McCallum Rock
Mag Site Supervisor
Chehalis, Washington
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hirly's read of this role
- Seniority
- Mid level
- Country
- US
- Work mode
- On-site / unstated
- First seen by hirly
- 3 Oct 2026
Derived automatically from the posting. Upload your resume above to see how the role scores against it.
the posting
McCallum Powder is an explosives supplier based out of Chehalis, WA and has been in business since 2016. McCallum Powder assists in the manufacturing, storage, and transportation of explosives products for all McCallum Rock Drilling blasting operations.
McCallum Powder is searching for a full-time Site Supervisor to join our Onalaska, WA site. He or she will be expected to be on site Monday - Friday and may be expected to work some hours on the weekends, depending on operational needs. Our ideal candidate must have a clean criminal background, must have an acceptable driving record, and will be required to pass a pre-employment drug screening test.
What to Expect
Our Site Supervisor will be responsible for the safe, secure, compliant, and efficient day-to-day operation of the explosives storage magazine. He or she will maintain accurate and strict inventory of all explosives products and will ensure McCallum Powder and regulatory requirements are followed.
Minimum responsibilities include:
Comply with all company policies and procedures
Maintain safe operation of the explosives magazine in accordance with federal, state, and local requirements
Ensure required licenses, permits, and inspections remain current
Maintain accurate inventory records and required transaction documentation
Oversee incoming explosive deliveries and safely
Enforce site-specific explosives safety procedures
Control access to restricted areas and maintain accurate access logs
Conduct routine inspections of magazine facilities, housekeeping, and equipment
Communicate and report any safety concerns, inventory discrepancies, incidents, or suspected violations to management
Ability to lift up to and between 50 - 100 lbs.
Minimum skills and qualifications include:
High school diploma or equivalent
Prior supervisory or leadership experience preferred
Strong recordkeeping and inventory skills
Ability to pass ATF background check
Valid driver's license
Familiar with electronic inventory and/or data entry
Excellent attention to detail
Strong communication and decision-making skills
Comfortable working outdoors and in all weather conditions
Ability to work independently most of the time
Benefits include:
Medical, Dental, Vision Coverage (zero cost for the employee)
401k Option (4% company match)
PTO (accrual based)
Paid Holidays
Employee Referral Bonus Program
Monday - Friday; 40 hours a week (overtime acceptable depending on company needs)
Expected to work some weekend hours on occasion
Hourly rate: $25.00 - $27.00
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