Sr. Estimator
Lead cost estimation efforts for mining and mineral processing projects at Mariana Minerals.
Posted by employer 2 months ago
First seen on Joblaze 1 month ago
Last verified on the company career page 13 hours ago
Skills & Technologies
Requirements
- Experience
- 7+ years
Not disclosed in this posting: compensation, work arrangement, visa sponsorship.
Joblaze summary
The Sr. Estimator at Mariana Minerals plays a crucial role in leading cost estimation for mining and mineral processing projects, ensuring that estimates are accurate and competitive. This position requires expertise in mining operations and proficiency in tools like RSMeans, along with strong analytical skills and experience in data analysis. Ideal candidates will have over seven years in estimating within relevant industries and a collaborative mindset to work with various teams. Mariana Minerals emphasizes a culture of safety, ownership, and innovation, making it a fitting environment for those who thrive in dynamic settings.
Joblaze insights
- Listed about a month ago — first seen on Joblaze September 3, 2026. Last confirmed on Mariana Minerals's careers page October 29, 2026.
Quick facts
- How much experience is required?
- At least 7 years of relevant experience for this Sr. Estimator role.
- What's the tech stack?
- Joblaze extracted these technologies from the posting: RSMeans.
- What seniority level is this role?
- Mariana Minerals targets senior candidates for this position.
- Is this full-time or contract?
- Full-time for this Sr. Estimator role at Mariana Minerals.
From the original posting
Role Overview
Mariana Minerals is seeking an experienced and detail-oriented Sr. Estimator to lead cost estimation efforts for mining and mineral processing projects. This role is responsible for developing accurate, competitive, and timely cost estimates that support strategic decision-making and project success.
What You’ll 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 to ensure accurate and comprehensive estimate
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 contribute to continuous improvement initiatives
Support the PCM and Software Engineering teams in developing operating systems and tools to automate estimating processes
What You’ll Bring
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
Preferred
Experience with EPC/EPCM project delivery models
Familiarity with mining projects
Our culture is built on four principles:
Standard company text repeated across Mariana Minerals's postings is omitted here.
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