Sr. Estimator

The role

The Sr. Estimator leads cost estimation efforts for mining and mineral processing projects. This person develops cost estimates, analyzes documentation, and collaborates with engineering and procurement teams.

What you will do

• Lead the preparation of detailed cost estimates for mining, processing, and infrastructure projects
• Analyze drawings, specifications, proposals, and other documentation to prepare time, cost, materials, and labor estimate
• Utilize RSMeans data and tools to develop accurate and benchmarked cost estimates
• Collaborate with engineering, procurement, and project management teams
• Develop and maintain cost databases, benchmarks, and estimating tools
• Identify project risks and opportunities, providing mitigation strategies
• Review and validate subcontractor and supplier quotes
• Participate in bid reviews, value engineering, and project planning sessions
• Provide ongoing cost analysis and support throughout the project lifecycle
• Mentor junior estimators and support the PCM and Software Engineering teams

Required qualifications

• 7+ years of experience in estimating within mining, heavy industrial, or construction environments
• Strong knowledge of mining operations, materials, and equipment
• Proficiency in RSMeans
• Advanced skills in Excel and data analysis
• Ability to interpret technical drawings and specifications
• Strong analytical, organizational, and communication skills
• Availability to travel 20% of the time to site or Mariana Minerals offices

Nice to have

• Experience with EPC/EPCM project delivery models
• Familiarity with mining projects

About the company

Mariana Minerals is a software-first, vertically integrated minerals company. They aim to supply critical minerals for energy, AI, and defense technologies by combining industry expertise with software and automation.