Assistant Project Manager Mining
Assistant Project Manager supporting planning, coordination, execution, and closeout of mining construction projects — tracking schedules, budgets, and costs, coordinating contractors and vendors, and ensuring MSHA/OSHA safety compliance. Core tools include Excel, MS Project, and Primavera P6.
- Compensation
- Not disclosed
- Location
- Arizona
- Work setup
- Not specified
- Seniority
- Not specified
- Employment
- Contract
- Experience
- Not specified
- Category
- Project management
- Posted
Skills
Must have
- 2-5 years of project coordination, construction, mining operations, engineering, or related experience
- Proficiency with Microsoft Office Suite, particularly Excel and Project
- Experience with project scheduling software (Primavera P6, MS Project, or equivalent)
- Understanding of project budgeting, forecasting, and cost controls
- Ability to read engineering drawings, specifications, and technical documents
- Strong organizational and time management skills
- Excellent verbal and written communication abilities
- Ability to work effectively in a fast-paced mining environment
- Problem-solving and critical-thinking skills
- Strong attention to detail and follow-through
- Ability to manage multiple priorities simultaneously
- Collaborative leadership and team-building capabilities
- Ability to work in active mining environments, including surface and underground operations
- Willingness to travel to mine sites frequently and work extended schedules
- Ability to wear required PPE and physically access operational areas
Nice to have
- Bachelor's degree in Mining Engineering, Construction Management, Civil/Mechanical/Industrial Engineering or related field
- Equivalent combination of education and mining industry experience considered
- Experience supporting capital projects, mine development, processing facilities, or infrastructure projects
- Familiarity with surface or underground mining operations
- Experience with ERP, procurement, or project management systems
- Mining industry experience
- MSHA certification or ability to obtain certification
- PMP, CAPM, or equivalent project management certification
- Experience managing contractors in mining, construction, or industrial environments
- Knowledge of heavy equipment, mine infrastructure, processing facilities, or mine development projects
Full description
Job Title: Assistant Project ManagerCompany: Loenbro, LLC
Business Unit/Department: Project Leadership-Developing Location: On Site Reports to: Project Manager
Employment Type: Full Time FLSA Classification: Exempt
About Loenbro
Loenbro is a trusted, long-term construction lifecycle partner to thousands of customers across the U.S. Our market spans all industries and our service offerings include Critical Electrical, Mechanical & Structural, Soft Crafts, Inspection, Underground Maintenance and Installation, and Fabrication. Our expertise lies in simplifying the complex and establishing long-standing relationships with our partners. We have a national presence but a local approach—every customer benefits from our capabilities and our care.
At Loenbro, we don’t just offer jobs—we build careers grounded in integrity, teamwork, excellence, and purpose. Join a team where your expertise is valued, your growth is supported, and your work helps maintain and enhance the critical infrastructure that powers communities across the nation.
**Job Summary:Runs a defined portion of a project under the Project Manager, or a small standalone project with Project Manager oversight. The Assistant Project Manager carries real ownership of delegated scope — its cost, its subcontracts, its procurement and its documentation — but does not hold the contract, the schedule of record, or the authority to change the deal. The role exists to develop Project Managers by giving them accountability before authority, and the scope delegated to an Assistant Project Manager must be written down at project kickoff, not assumed.
Essential Job Responsibilities: Essential Duties and ResponsibilitiesDelegated Scope Ownership**
- Own the cost, progress and documentation of the scope formally delegated by the Project Manager at kickoff. The delegation is written and specific — area, discipline, phase or dollar value — and is reviewed when the scope changes.
- Report on delegated scope at the weekly project meeting: cost position, progress against plan, open issues and risks.
- Escalate anything outside the delegated scope to the Project Manager rather than absorbing it.
Cost & Reporting
- Maintain cost coding, quantity roll-up and earned-value reporting for the delegated scope.
- Prepare the monthly cost forecast and estimate at completion for the delegated scope; the Project Manager consolidates and owns the project total.
- Prepare the monthly accrual and progress billing backup for Project Manager review and submission.
- Review and approve timecards, vendor invoices and subcontractor pay applications within the delegated scope and authority threshold.